Version: 2025.01
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This area was updated. Please refer to the CPC Notices of Changes and Notices of Editorial Corrections for more information.
CPC | COOPERATIVE PATENT CLASSIFICATION | |||
| G01L | MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE (weighing G01G) [2020-01] NOTE
WARNING
|
G01L 1/00 |
G01L 1/005 | . |
G01L 1/02 | . | by hydraulic or pneumatic means [2013-01] |
G01L 1/04 | . | by measuring elastic deformation of gauges, e.g. of springs [2013-01] |
G01L 1/042 | . . | {of helical springs} [2013-01] |
G01L 1/044 | . . | {of leaf springs} [2013-01] |
G01L 1/046 | . . | {of spiral springs} [2013-01] |
G01L 1/048 | . . | {of torsionally deformable elements} [2013-01] |
G01L 1/06 | . | by measuring the permanent deformation of gauges, e.g. of compressed bodies [2013-01] |
G01L 1/08 | . | by the use of counterbalancing forces [2021-05] |
G01L 1/083 | . . | {using hydraulic or pneumatic counterbalancing forces} [2013-01] |
G01L 1/086 | . . | {using electrostatic or electromagnetic counterbalancing forces} [2013-01] |
G01L 1/10 | . | by measuring variations of frequency of stressed vibrating elements, e.g. of stressed strings (using resistance strain gauges G01L 1/22) [2021-05] |
G01L 1/103 | . . | {optical excitation or measuring of vibrations} [2013-01] |
G01L 1/106 | . . | {Constructional details} [2013-01] |
G01L 1/12 | . | by measuring variations in the magnetic properties of materials resulting from the application of stress [2013-01] |
G01L 1/122 | . . | {by using permanent magnets} [2013-01] |
G01L 1/125 | . . | {by using magnetostrictive means (magnetostrictive sensors H10N 35/101)} [2023-02] |
G01L 1/127 | . . | {by using inductive means (G01L 1/122, G01L 1/125 take precedence)} [2013-01] |
G01L 1/14 | . | by measuring variations in capacitance or inductance of electrical elements, e.g. by measuring variations of frequency of electrical oscillators [2013-01] |
G01L 1/142 | . . | {using capacitors} [2013-01] |
G01L 1/144 | . . . | {with associated circuitry (G01L 1/146 and G01L 1/148 take precedence)} [2013-01] |
G01L 1/146 | . . . | {for measuring force distributions, e.g. using force arrays (G01L 1/148 takes precedence)} [2013-01] |
G01L 1/148 | . . . | {using semiconductive material, e.g. silicon} [2013-01] |
G01L 1/16 | . | using properties of piezoelectric devices [2023-08] |
G01L 1/162 | . . | {using piezoelectric resonators} [2023-08] |
G01L 1/165 | . . . | {with acoustic surface waves} [2013-01] |
G01L 1/167 | . . . | {optical excitation or measuring of vibrations} [2013-01] |
G01L 1/18 | . | using properties of piezo-resistive materials, i.e. materials of which the ohmic resistance varies according to changes in magnitude or direction of force applied to the material [2020-01] |
G01L 1/183 | . . | {by measuring variations of frequency of vibrating piezo-resistive material} [2013-01] |
G01L 1/186 | . . . | {optical excitation or measuring of vibrations} [2013-01] |
G01L 1/20 | . | by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids (of piezo-resistive materials G01L 1/18); by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress [2017-08] |
G01L 1/205 | . . | {using distributed sensing elements} [2013-01] |
G01L 1/22 | . . | using resistance strain gauges [2020-01] |
G01L 1/2206 | . . . | {Special supports with preselected places to mount the resistance strain gauges; Mounting of supports} [2013-01] |
G01L 1/2212 | . . . . | {particularly adapted to unbounded-wire-type strain gauges} [2013-01] |
G01L 1/2218 | . . . . | {the supports being of the column type, e.g. cylindric, adapted for measuring a force along a single direction} [2013-01] |
G01L 1/2225 | . . . . . | {the direction being perpendicular to the central axis} [2013-01] |
G01L 1/2231 | . . . . | {the supports being disc- or ring-shaped, adapted for measuring a force along a single direction} [2013-01] |
G01L 1/2237 | . . . . . | {the direction being perpendicular to the central axis} [2013-01] |
G01L 1/2243 | . . . . | {the supports being parallelogram-shaped} [2013-01] |
G01L 1/225 | . . . | {Measuring circuits therefor} [2013-01] |
G01L 1/2256 | . . . . | {involving digital counting} [2013-01] |
G01L 1/2262 | . . . . | {involving simple electrical bridges} [2013-01] |
G01L 1/2268 | . . . | {Arrangements for correcting or for compensating unwanted effects} [2013-01] |
G01L 1/2275 | . . . . | {for non linearity} [2013-01] |
G01L 1/2281 | . . . . | {for temperature variations} [2013-01] |
G01L 1/2287 | . . . | {constructional details of the strain gauges (adjustable resistors H01C 10/00)} [2013-01] |
G01L 1/2293 | . . . . | {of the semi-conductor type} [2025-01] |
G01L 1/24 | . | by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis {using infrared, visible light, ultraviolet} [2023-08] |
G01L 1/241 | . . | {by photoelastic stress analysis} [2013-01] |
G01L 1/242 | . . | {the material being an optical fibre} [2013-01] |
G01L 1/243 | . . . | {using means for applying force perpendicular to the fibre axis} [2013-01] |
G01L 1/245 | . . . . | {using microbending} [2017-08] |
G01L 1/246 | . . . | {using integrated gratings, e.g. Bragg gratings} [2013-01] |
G01L 1/247 | . . | {using distributed sensing elements, e.g. microcapsules (along a single optical fibre G01L 1/242)} [2013-01] |
G01L 1/248 | . . | {using infrared (G01L 1/241, G01L 1/242 take precedence)} [2023-08] |
G01L 1/25 | . | using wave or particle radiation, e.g. X-rays {, microwaves}, neutrons (G01L 1/24 takes precedence) [2017-08] |
G01L 1/255 | . . |
G01L 1/26 | . | Auxiliary measures taken, or devices used, in connection with the measurement of force, e.g. for preventing influence of transverse components of force, for preventing overload [2013-01] |
G01L 3/00 | Measuring torque, work, mechanical power, or mechanical efficiency, in general [2021-05] |
G01L 3/02 | . | Rotary-transmission dynamometers [2013-01] |
G01L 3/04 | . . | wherein the torque-transmitting element comprises a torsionally-flexible shaft [2013-01] |
G01L 3/045 | . . . | {by measuring variations of frequency of stressed vibrating elements} [2013-01] |
G01L 3/06 | . . . | involving mechanical means for indicating [2013-01] |
G01L 3/08 | . . . | involving optical means for indicating [2013-01] |
G01L 3/10 | . . . | involving electric or magnetic means for indicating [2021-05] |
G01L 3/101 | . . . . | {involving magnetic or electromagnetic means} [2013-01] |
G01L 3/102 | . . . . . | {involving magnetostrictive means (magnetostrictive sensors H10N 35/101)} [2023-02] |
G01L 3/103 | . . . . . . | {Details about the magnetic material used} [2013-01] |
G01L 3/104 | . . . . . | {involving permanent magnets} [2013-01] |
G01L 3/105 | . . . . . | {involving inductive means (G01L 3/102, G01L 3/104 take precedence)} [2013-01] |
G01L 3/106 | . . . . | {involving electrostatic means} [2013-01] |
G01L 3/107 | . . . . | {involving potentiometric means} [2013-01] |
G01L 3/108 | . . . . | {involving resistance strain gauges} [2013-01] |
G01L 3/109 | . . . . | {involving measuring phase difference of two signals or pulse trains} [2013-01] |
G01L 3/12 | . . . . | involving photoelectric means [2013-01] |
G01L 3/14 | . . | wherein the torque-transmitting element is other than a torsionally-flexible shaft [2013-01] |
G01L 3/1407 | . . . | {involving springs} [2013-01] |
G01L 3/1414 | . . . . | {using mechanical or hydraulic transducers} [2013-01] |
G01L 3/1421 | . . . . | {using optical transducers} [2013-01] |
G01L 3/1428 | . . . . | {using electrical transducers} [2013-01] |
G01L 3/1435 | . . . . . | {involving magnetic or electromagnetic means} [2013-01] |
G01L 3/1442 | . . . . . | {involving electrostatic means} [2013-01] |
G01L 3/145 | . . . . . | {involving potentiometric means} [2013-01] |
G01L 3/1457 | . . . . . | {involving resistance strain gauges} [2013-01] |
G01L 3/1464 | . . . | {involving screws and nuts, screw-gears or cams} [2013-01] |
G01L 3/1471 | . . . . | {using planet wheels or conical gears} [2013-01] |
G01L 3/1478 | . . . | {involving hinged levers} [2013-01] |
G01L 3/1485 | . . . | {involving fluidic means} [2013-01] |
G01L 3/1492 | . . . | {involving electric couplings} [2013-01] |
G01L 3/16 | . | Rotary-absorption dynamometers, e.g. of brake type [2013-01] |
G01L 3/18 | . . | mechanically actuated [2013-01] |
G01L 3/20 | . . | fluid actuated [2020-01] |
G01L 3/205 | . . . | {of the air brake type} [2020-01] |
G01L 3/22 | . . | electrically or magnetically actuated [2021-05] |
G01L 3/242 | . . | {by measuring and simultaneously multiplying torque and velocity} [2013-01] |
G01L 3/245 | . . | {by measuring and simultaneously multiplying pressure and velocity} [2013-01] |
G01L 3/247 | . . | {by measuring and simultaneously multiplying tractive or propulsive force and velocity} [2013-01] |
G01L 3/26 | . | Devices for measuring efficiency, i.e. the ratio of power output to power input [2013-01] |
G01L 5/00 | Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes [2020-01] |
G01L 5/0004 | . | {Force transducers adapted for mounting in a bore of the force receiving structure (G01L 5/0009 takes precedence)} [2013-01] |
G01L 5/0009 | . | {Force sensors associated with a bearing (testing of bearings G01M 13/04)} [2013-01] |
G01L 5/0014 | . . | {by using capacitive sensors} [2013-01] |
G01L 5/0019 | . . | {by using strain gages, piezoelectric, piezo-resistive or other ohmic-resistance based sensors} [2023-08] |
G01L 5/0023 | . . | {by using magnetic sensors} [2013-01] |
G01L 5/0028 | . | {Force sensors associated with force applying means (G01L 5/0052, G01L 5/0057, G01L 5/0061 take precedence)} [2013-01] |
G01L 5/0033 | . . | {applying a pulling force} [2013-01] |
G01L 5/0038 | . . | {applying a pushing force} [2013-01] |
G01L 5/0042 | . . | {applying a torque} [2013-01] |
G01L 5/0047 | . | {measuring forces due to residual stresses} [2013-01] |
G01L 5/0052 | . | {measuring forces due to impact (G01L 5/0061, G01L 5/14 take precedence; impact testing of structures G01M 7/08; impact testing of material G01N 3/00)} [2013-01] |
G01L 5/0057 | . | {measuring forces due to spring-shaped elements} [2013-01] |
G01L 5/0061 | . |
G01L 5/0066 | . . | {Calibration arrangements} [2021-05] |
G01L 5/0071 | . . | {Specific indicating arrangements, e.g. of overload} [2013-01] |
G01L 5/0076 | . . | {Force sensors associated with manufacturing machines (G01L 5/0066, G01L 5/0071 and B23Q 17/09 take precedence; for the specific machine or operation involved see relevant class, e.g. B21 - B42)} [2016-05] |
G01L 5/008 | . . . | {Force sensors integrated in an article or a dummy workpiece} [2013-01] |
G01L 5/0085 | . . . | {Force sensors adapted for insertion between cooperating machine elements, e.g. for measuring the nip force between rollers} [2013-01] |
G01L 5/009 | . . . | {Force sensors associated with material gripping devices} [2021-05] |
G01L 5/0095 | . | {measuring work or mechanical power} [2013-01] |
G01L 5/03 | . | for measuring release force of ski safety bindings [2013-01] |
G01L 5/04 | . | for measuring tension in flexible members, e.g. ropes, cables, wires, threads, belts or bands {(G01L 5/0004 takes precedence)} [2020-01] |
G01L 5/042 | . . | {by measuring vibrational characteristics of the flexible member} [2013-01] |
G01L 5/045 | . . | {for measuring the tension across the width of a band-shaped flexible member (measuring flatness G01B)} [2021-05] |
G01L 5/047 | . . | {Specific indicating or recording arrangements, e.g. for remote indication, for indicating overload or underload} [2013-01] |
G01L 5/06 | . . |
G01L 5/08 | . . |
G01L 5/10 | . . | using electrical means [2020-01] |
G01L 5/101 | . . . | using sensors inserted into the flexible member [2020-01] |
G01L 5/102 | . . . | using sensors located at a non-interrupted part of the flexible member [2020-01] |
G01L 5/103 | . . . | using sensors fixed at one end of the flexible member [2020-01] |
G01L 5/105 | . . . | using electro-optical means [2020-01] |
G01L 5/106 | . . . | for measuring a reaction force applied on a cantilever beam [2020-01] |
G01L 5/107 | . . . | for measuring a reaction force applied on an element disposed between two supports, e.g. on a plurality of rollers or gliders [2020-01] |
G01L 5/108 | . . . | for measuring a reaction force applied on a single support, e.g. a glider [2020-01] |
G01L 5/12 | . | for measuring axial thrust in a rotary shaft, e.g. of propulsion plants [2013-01] |
G01L 5/13 | . | for measuring the tractive or propulsive power of vehicles [2013-01] |
G01L 5/133 | . . |
G01L 5/136 | . . |
G01L 5/14 | . | for measuring the force of explosions; for measuring the energy of projectiles [2013-01] |
G01L 5/16 | . | for measuring several components of force [2022-01] |
G01L 5/161 | . . | using variations in ohmic resistance [2022-01] |
G01L 5/162 | . . . | of piezoresistors [2020-01] |
G01L 5/1623 | . . . |
G01L 5/1627 | . . . |
G01L 5/163 | . . . | of potentiometers [2020-01] |
G01L 5/164 | . . | using variations in inductance [2020-01] |
G01L 5/165 | . . | using variations in capacitance [2020-01] |
G01L 5/166 | . . | using photoelectric means [2020-01] |
G01L 5/167 | . . | using piezoelectric means [2023-08] |
G01L 5/168 | . . | using counterbalancing forces [2020-01] |
G01L 5/169 | . . | using magnetic means [2022-01] |
G01L 5/171 | . . | using fluid means [2022-01] |
G01L 5/173 | . . | using acoustic means [2022-01] |
G01L 5/18 | . | for measuring ratios of force [2013-01] |
G01L 5/20 | . | for measuring wheel side-thrust [2020-01] |
G01L 5/22 | . | for measuring the force applied to control members, e.g. control members of vehicles, triggers [2013-01] |
G01L 5/221 | . . | {to steering wheels, e.g. for power assisted steering} [2013-01] |
G01L 5/223 | . . | {to joystick controls} [2013-01] |
G01L 5/225 | . . | {to foot actuated controls, e.g. brake pedals} [2013-01] |
G01L 5/226 | . . | {to manipulators, e.g. the force due to gripping} [2013-01] |
G01L 5/228 | . . . | {using tactile array force sensors} [2013-01] |
G01L 5/24 | . | for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed [2020-01] |
G01L 5/26 | . | for determining the characteristic of torque in relation to revolutions per unit of time [2013-01] |
G01L 5/28 | . | for testing brakes [2013-01] |
G01L 5/282 | . . | {the vehicle wheels cooperating with rotatable rolls} [2013-01] |
G01L 5/284 | . . | {Measuring braking-time or braking distance} [2013-01] |
G01L 5/286 | . . | {Measuring deceleration} [2020-01] |
G01L 5/288 | . . | {Measuring the force necessary to rotate a braked wheel} [2013-01] |
Measuring fluid pressure [2013-01] |
G01L 7/00 | Measuring the steady or quasi-steady pressure of a fluid or a fluent solid material by mechanical or fluid pressure-sensitive elements ({G01L 11/004 takes precedence;} transmitting or indicating the displacement of mechanical pressure-sensitive elements by electric {, e.g., photoelectric} or magnetic means G01L 9/00; measuring differences of two or more pressure values G01L 13/00; measuring two or more pressure values simultaneously G01L 15/00) [2021-05] |
G01L 7/02 | . | in the form of elastically-deformable gauges [2013-01] |
G01L 7/022 | . . | {constructional details, e.g. mounting of elastically-deformable gauges (G01L 7/041, G01L 7/061, G01L 7/082, G01L 7/102, G01L 7/163, G01L 7/182 take precedence)} [2020-01] |
G01L 7/024 | . . | {with mechanical transmitting or indicating means (G01L 7/043, G01L 7/063, G01L 7/084, G01L 7/104, G01L 7/166, G01L 7/185 take precedence)} [2020-01] |
G01L 7/026 | . . | {with optical transmitting or indicating means (G01L 7/045, G01L 7/065, G01L 7/086, G01L 7/106, G01L 7/187 take precedence)} [2020-01] |
G01L 7/028 | . . | {correcting or regulating means (G01L 7/048, G01L 7/068, G01L 7/088, G01L 7/108 take precedence)} [2020-01] |
G01L 7/04 | . . | in the form of flexible, deformable tubes, e.g. Bourdon gauges [2013-01] |
G01L 7/041 | . . . | {Construction or mounting of deformable tubes} [2013-01] |
G01L 7/043 | . . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/045 | . . . | {with optical transmitting or indicating means} [2013-01] |
G01L 7/046 | . . . | {with exhausted tubes} [2013-01] |
G01L 7/048 | . . . | {correcting or regulating means for flexible, deformable tubes} [2013-01] |
G01L 7/06 | . . | of the bellows type [2013-01] |
G01L 7/061 | . . . | {construction or mounting of bellows} [2013-01] |
G01L 7/063 | . . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/065 | . . . | {with optical transmitting or indicating means} [2013-01] |
G01L 7/066 | . . . | {with exhausted bellows} [2013-01] |
G01L 7/068 | . . . | {correcting or regulating means for bellows} [2013-01] |
G01L 7/08 | . . | of the flexible-diaphragm type [2013-01] |
G01L 7/082 | . . . | {construction or mounting of diaphragms (of semiconductive diaphragms G01L 9/0042)} [2013-01] |
G01L 7/084 | . . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/086 | . . . | {with optical transmitting or indicating means} [2013-01] |
G01L 7/088 | . . . | {correcting or regulating means for flexible diaphragms} [2013-01] |
G01L 7/10 | . . | of the capsule type [2013-01] |
G01L 7/102 | . . . | {construction or mounting of capsules} [2013-01] |
G01L 7/104 | . . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/106 | . . . | {with optical transmitting or indicating means} [2013-01] |
G01L 7/108 | . . . | {correcting or regulating means for capsules} [2013-01] |
G01L 7/12 | . . . | with exhausted chamber; Aneroid barometers [2013-01] |
G01L 7/14 | . . . . | with zero-setting means [2013-01] |
G01L 7/16 | . | in the form of pistons [2013-01] |
G01L 7/163 | . . | {construction or mounting of pistons} [2013-01] |
G01L 7/166 | . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/18 | . | using liquid as the pressure-sensitive medium, e.g. liquid-column gauges [2013-01] |
G01L 7/182 | . . | {constructional details, e.g. mounting} [2013-01] |
G01L 7/185 | . . | {with mechanical transmitting or indicating means} [2013-01] |
G01L 7/187 | . . | {with optical transmitting or indicating means} [2013-01] |
G01L 7/20 | . . | involving a closed chamber above the liquid level, the chamber being exhausted or housing low-pressure gas; Liquid barometers [2017-08] |
G01L 7/22 | . . | involving floats, e.g. floating bells [2013-01] |
G01L 7/24 | . . | involving balances in the form of rings partly filled with liquid [2013-01] |
G01L 9/00 | Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements {(G01L 11/004 takes precedence)}; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means (measuring differences of two or more pressure values G01L 13/00; measuring two or more pressure values simultaneously G01L 15/00) [2020-01] |
G01L 9/0001 | . | {Transmitting or indicating the displacement of elastically deformable gauges by electric, electro-mechanical, magnetic or electro-magnetic means (G01L 9/0026, G01L 9/0033, G01L 9/0082, G01L 9/0089, G01L 9/0091 take precedence)} [2013-01] |
G01L 9/0002 | . . | {using variations in ohmic resistance (G01L 9/0051 takes precedence)} [2013-01] |
G01L 9/0004 | . . | {using variations in inductance (G01L 9/007 takes precedence)} [2013-01] |
G01L 9/0005 | . . | {using variations in capacitance (G01L 9/0072 takes precedence)} [2013-01] |
G01L 9/0007 | . . | {using photoelectric means (G01L 9/0076 takes precedence)} [2013-01] |
G01L 9/0008 | . . | {using vibrations} [2013-01] |
G01L 9/001 | . . . | {of an element not provided for in the following subgroups of G01L 9/0008} [2019-05] |
G01L 9/0011 | . . . . | {Optical excitation or measuring} [2013-01] |
G01L 9/0013 | . . . | {of a string} [2013-01] |
G01L 9/0014 | . . . . | {Optical excitation or measuring of vibrations} [2013-01] |
G01L 9/0016 | . . . | {of a diaphragm} [2013-01] |
G01L 9/0017 | . . . . | {Optical excitation or measuring} [2013-01] |
G01L 9/0019 | . . . | {of a semiconductive element} [2013-01] |
G01L 9/002 | . . . . | {Optical excitation or measuring} [2013-01] |
G01L 9/0022 | . . . | {of a piezoelectric element} [2013-01] |
G01L 9/0023 | . . . . | {Optical excitation or measuring} [2013-01] |
G01L 9/0025 | . . . . | {with acoustic surface waves} [2013-01] |
G01L 9/0026 | . | {Transmitting or indicating the displacement of flexible, deformable tubes by electric, electromechanical, magnetic or electromagnetic means (G01L 9/0008 takes precedence)} [2021-05] |
G01L 9/0027 | . . | {using variations in ohmic resistance} [2013-01] |
G01L 9/0029 | . . | {using variations in inductance} [2013-01] |
G01L 9/003 | . . | {using variations in capacitance} [2013-01] |
G01L 9/0032 | . . | {using photoelectric means} [2013-01] |
G01L 9/0033 | . | {Transmitting or indicating the displacement of bellows by electric, electromechanical, magnetic, or electromagnetic means (G01L 9/0008 takes precedence)} [2021-05] |
G01L 9/0035 | . . | {using variations in ohmic resistance} [2013-01] |
G01L 9/0036 | . . | {using variations in inductance} [2013-01] |
G01L 9/0038 | . . | {using variations in capacitance} [2013-01] |
G01L 9/0039 | . . | {using photoelectric means} [2013-01] |
G01L 9/0041 | . | {Transmitting or indicating the displacement of flexible diaphragms} [2021-05] |
G01L 9/0042 | . . | {Constructional details associated with semiconductive diaphragm sensors, e.g. etching, or constructional details of non-semiconductive diaphragms (details about the integration or bonding of piezoresistor in or on the diaphragm G01L 9/0052 and G01L 9/0057 respectively)} [2013-01] |
G01L 9/0044 | . . . | {Constructional details of non-semiconductive diaphragms} [2013-01] |
G01L 9/0045 | . . . | {Diaphragm associated with a buried cavity} [2013-01] |
G01L 9/0047 | . . . | {Diaphragm with non uniform thickness, e.g. with grooves, bosses or continuously varying thickness} [2013-01] |
G01L 9/0048 | . . . | {Details about the mounting of the diaphragm to its support or about the diaphragm edges, e.g. notches, round shapes for stress relief} [2013-01] |
G01L 9/005 | . . . | {Non square semiconductive diaphragm} [2013-01] |
G01L 9/0051 | . . | {using variations in ohmic resistance} [2013-01] |
G01L 9/0052 | . . . | {of piezoresistive elements (circuits therefor G01L 9/06)} [2013-01] |
G01L 9/0054 | . . . . | {integral with a semiconducting diaphragm} [2013-01] |
G01L 9/0055 | . . . . | {bonded on a diaphragm} [2013-01] |
G01L 9/0057 | . . . | {of potentiometers} [2013-01] |
G01L 9/0058 | . . . | {of pressure sensitive conductive solid or liquid material, e.g. carbon granules} [2013-01] |
G01L 9/006 | . . . | {of metallic strain gauges fixed to an element other than the pressure transmitting diaphragm} [2013-01] |
G01L 9/0061 | . . . . | {using unbounded-wire-type strain gauges} [2013-01] |
G01L 2009/0063 | . . . . | {using a fluid coupling between strain gauge carrier and diaphragm} [2013-01] |
G01L 9/0064 | . . . . | {the element and the diaphragm being in intimate contact} [2013-01] |
G01L 2009/0066 | . . . | {Mounting arrangements of diaphragm transducers; Details thereof, e.g. electromagnetic shielding means} [2013-01] |
G01L 2009/0067 | . . . . | {with additional isolating diaphragms} [2013-01] |
G01L 2009/0069 | . . . . | {the transducer being mounted on a flexible element} [2013-01] |
G01L 9/007 | . . | {using variations in inductance} [2013-01] |
G01L 9/0072 | . . | {using variations in capacitance} [2013-01] |
G01L 9/0073 | . . . | {using a semiconductive diaphragm} [2013-01] |
G01L 9/0075 | . . . | {using a ceramic diaphragm, e.g. alumina, fused quartz, glass} [2013-01] |
G01L 9/0076 | . . | {using photoelectric means} [2013-01] |
G01L 9/0077 | . . . | {for measuring reflected light} [2013-01] |
G01L 9/0079 | . . . . | {with Fabry-Perot arrangements} [2013-01] |
G01L 9/008 | . . | {using piezoelectric devices (piezoelectric resonators G01L 9/0022; surface acoustic waves G01L 9/0025)} [2013-01] |
G01L 9/0082 | . | {Transmitting or indicating the displacement of capsules by electric, electromechanical, magnetic, or electromechanical means (G01L 9/0008 takes precedence)} [2021-05] |
G01L 9/0083 | . . | {using variations in ohmic resistance} [2013-01] |
G01L 9/0085 | . . | {using variations in inductance} [2013-01] |
G01L 9/0086 | . . | {using variations in capacitance} [2013-01] |
G01L 9/0088 | . . | {using photoelectric means} [2013-01] |
G01L 9/0089 | . | {Transmitting or indicating the displacement of pistons by electrical, electromechanical, magnetic or electromagnetic means (G01L 9/0008 takes precedence)} [2021-05] |
G01L 9/0091 | . | {Transmitting or indicating the displacement of liquid mediums by electrical, electromechanical, magnetic or electromagnetic means (G01L 9/0008 takes precedence)} [2021-05] |
G01L 9/0092 | . . | {using variations in ohmic resistance} [2013-01] |
G01L 9/0094 | . . | {using variations in inductance} [2013-01] |
G01L 9/0095 | . . | {using variations in capacitance} [2013-01] |
G01L 9/0097 | . . | {using photoelectric means} [2013-01] |
G01L 9/0098 | . | {using semiconductor body comprising at least one PN junction as detecting element} [2013-01] |
G01L 9/02 | . | by making use of variations in ohmic resistance, e.g. of potentiometers {, electric circuits therefor, e.g. bridges, amplifiers or signal conditioning} [2021-05] |
G01L 9/025 | . . | {with temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/04 | . . | of resistance-strain gauges [2013-01] |
G01L 9/045 | . . . | {with electric temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/06 | . . | of piezo-resistive devices [2013-01] |
G01L 9/065 | . . . | {with temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/08 | . | by making use of piezoelectric devices {, i.e. electric circuits therefor} [2023-08] |
G01L 9/085 | . . | {with temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/10 | . | by making use of variations in inductance {, i.e. electric circuits therefor} [2017-08] |
G01L 9/105 | . . | {with temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/12 | . | by making use of variations in capacitance {, i.e. electric circuits therefor} [2017-08] |
G01L 9/125 | . . | {with temperature compensating means (non electric temperature compensating means G01L 19/04)} [2013-01] |
G01L 9/14 | . | involving the displacement of magnets, e.g. electromagnets [2017-08] |
G01L 9/16 | . | by making use of variations in the magnetic properties of material resulting from the application of stress [2013-01] |
G01L 9/18 | . | by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electric potential is produced or varied upon the application of stress [2013-01] |
G01L 11/00 |
G01L 11/002 | . | {by thermal means, e.g. hypsometer} [2016-08] |
G01L 11/004 | . | {by the use of counterbalancing forces (measuring force by the use of counterbalancing forces G01L 1/08)} [2013-01] |
G01L 11/006 | . . | {hydraulic or pneumatic counterbalancing forces} [2013-01] |
G01L 11/008 | . . | {electrostatic or electromagnetic counterbalancing forces} [2013-01] |
G01L 11/02 | . | by optical means [2013-01] |
G01L 11/025 | . . | {using a pressure-sensitive optical fibre} [2013-01] |
G01L 11/04 | . | by acoustic means [2013-01] |
G01L 11/06 | . . | Ultrasonic means [2013-01] |
G01L 13/00 | Devices or apparatus for measuring differences of two or more fluid pressure values [2020-01] |
G01L 13/02 | . | using elastically-deformable members or pistons as sensing elements [2013-01] |
G01L 13/021 | . . | {using deformable tubes} [2013-01] |
G01L 13/023 | . . | {using bellows} [2013-01] |
G01L 13/025 | . . | {using diaphragms} [2013-01] |
G01L 13/026 | . . . | {involving double diaphragm} [2013-01] |
G01L 13/028 | . . | {using capsules} [2013-01] |
G01L 13/04 | . | using floats or liquids as sensing elements [2013-01] |
G01L 13/06 | . | using electric or magnetic pressure-sensitive elements [2013-01] |
G01L 15/00 | Devices or apparatus for measuring two or more fluid pressure values simultaneously [2020-01] |
G01L 17/00 | Devices or apparatus for measuring tyre pressure or the pressure in other inflated bodies [2020-01] |
G01L 17/005 | . | {using a sensor contacting the exterior surface, e.g. for measuring deformation} [2013-01] |
G01L 19/0007 | . | {Fluidic connecting means} [2013-01] |
G01L 19/0015 | . . | {using switching means} [2013-01] |
G01L 19/0023 | . . | {for flowthrough systems having a flexible pressure transmitting element} [2013-01] |
G01L 19/003 | . . | {using a detachable interface or adapter between the process medium and the pressure gauge} [2013-01] |
G01L 19/0038 | . . | {being part of the housing (other details about the housing G01L 19/14)} [2013-01] |
G01L 19/0046 | . . | {using isolation membranes (G01L 13/026 and G01L 19/0645 take precedence)} [2013-01] |
G01L 2019/0053 | . | {Pressure sensors associated with other sensors, e.g. for measuring acceleration, temperature} [2013-01] |
G01L 19/0061 | . | {Electrical connection means} [2013-01] |
G01L 19/0069 | . . | {from the sensor to its support} [2013-01] |
G01L 19/0076 | . . . | {using buried connections} [2013-01] |
G01L 19/0084 | . . | {to the outside of the housing (other details about the housing see G01L 19/14)} [2013-01] |
G01L 19/0092 | . | {Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature (G01L 9/025, G01L 9/045, G01L 9/065, G01L 9/085, G01L 9/105, G01L 9/125, G01L 19/02, G01L 19/04 take precedence; measuring two or more variable G01D 21/02; temperature sensors with pressure compensation G01K 1/26)} [2013-01] |
G01L 19/02 | . | Arrangements for preventing, or for compensating for, effects of inclination or acceleration of the measuring device; Zero-setting means (for aneroid barometers G01L 7/14) [2013-01] |
G01L 19/04 | . | Means for compensating for effects of changes of temperature {, i.e. other than electric compensation} [2021-05] |
G01L 19/06 | . | Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa [2013-01] |
G01L 19/0609 | . . | {Pressure pulsation damping arrangements} [2013-01] |
G01L 19/0618 | . . | {Overload protection} [2013-01] |
G01L 19/0627 | . . | {Protection against aggressive medium in general} [2013-01] |
G01L 19/0636 | . . . | {using particle filters} [2013-01] |
G01L 19/0645 | . . . | {using isolation membranes, specially adapted for protection} [2021-05] |
G01L 19/0654 | . . . | {against moisture or humidity} [2013-01] |
G01L 19/0663 | . . | {Flame protection; Flame barriers} [2013-01] |
G01L 19/0672 | . . | {Leakage or rupture protection or detection} [2021-05] |
G01L 19/0681 | . . | {Protection against excessive heat} [2013-01] |
G01L 19/069 | . . | {Protection against electromagnetic or electrostatic interferences} [2013-01] |
G01L 19/08 | . | Means for indicating or recording, e.g. for remote indication [2020-01] |
G01L 19/083 | . . | {electrical} [2013-01] |
G01L 19/086 | . . | {for remote indication} [2013-01] |
G01L 19/10 | . . | mechanical [2013-01] |
G01L 19/12 | . . | Alarms or signals [2013-01] |
G01L 19/14 | . | Housings {(G01L 19/0007, G01L 19/0084, G01L 19/0092, G01L 19/04, G01L 19/06 take precedence)} [2015-11] |
G01L 19/141 | . . | {Monolithic housings, e.g. molded or one-piece housings} [2013-01] |
G01L 19/142 | . . | {Multiple part housings} [2013-01] |
G01L 19/143 | . . . | {Two part housings} [2013-01] |
G01L 19/144 | . . . | {with dismountable parts, e.g. for maintenance purposes or for ensuring sterile conditions (for detachable interface or adapter between the process medium and the pressure gauge G01L 19/003)} [2013-01] |
G01L 19/145 | . . | {with stress relieving means} [2013-01] |
G01L 19/146 | . . . | {using flexible element between the transducer and the support} [2013-01] |
G01L 19/147 | . . | {Details about the mounting of the sensor to support or covering means} [2013-01] |
G01L 19/148 | . . | {Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation} [2013-01] |
G01L 19/149 | . . | {of immersion sensor, e.g. where the sensor is immersed in the measuring medium or for in vivo measurements, e.g. by using catheter tips} [2021-05] |
G01L 19/16 | . | Dials; Mounting of dials [2013-01] |
G01L 21/00 | Vacuum gauges [2013-01] |
G01L 21/02 | . | having a compression chamber in which gas, whose pressure is to be measured, is compressed [2013-01] |
G01L 21/04 | . . | wherein the chamber is closed by liquid; Vacuum gauges of the McLeod type [2017-08] |
G01L 21/06 | . . . | actuated by rotating or inverting the measuring device [2013-01] |
G01L 21/08 | . | by measuring variations in the transmission of acoustic waves through the medium, the pressure of which is to be measured [2013-01] |
G01L 21/10 | . | by measuring variations in the heat conductivity of the medium, the pressure of which is to be measured [2013-01] |
G01L 21/12 | . . | measuring changes in electric resistance of measuring members, e.g. of filaments; Vacuum gauges of the Pirani type [2013-01] |
G01L 21/14 | . . | using thermocouples [2017-08] |
G01L 21/16 | . | by measuring variation of frictional resistance of gases [2013-01] |
G01L 21/18 | . . | using a pendulum [2013-01] |
G01L 21/20 | . . | using members oscillating about a vertical axis [2013-01] |
G01L 21/22 | . . | using resonance effects of a vibrating body; Vacuum gauges of the Klumb type [2013-01] |
G01L 21/24 | . . | using rotating members; Vacuum gauges of the Langmuir type [2021-05] |
G01L 21/26 | . | by making use of radiometer action, i.e. of the pressure caused by the momentum of molecules passing from a hotter to a cooler member; Vacuum gauges of the Knudsen type [2013-01] |
G01L 21/28 | . . | using torsional rotary measuring members [2013-01] |
G01L 21/30 | . | by making use of ionisation effects [2020-01] |
G01L 21/32 | . . | using electric discharge tubes with thermionic cathodes [2013-01] |
G01L 21/34 | . . | using electric discharge tubes with cold cathodes [2013-01] |
G01L 21/36 | . . | using radioactive substances [2013-01] |
G01L 23/00 | Devices or apparatus for measuring or indicating or recording rapid changes, such as oscillations, in the pressure of steam, gas, or liquid; Indicators for determining work or energy of steam, internal-combustion, or other fluid-pressure engines from the condition of the working fluid [2013-01] |
G01L 23/02 | . | mechanically indicating or recording and involving loaded or return springs [2013-01] |
G01L 23/04 | . | involving means subjected to known counteracting pressure [2017-08] |
G01L 23/06 | . | Indicating or recording by optical means [2013-01] |
G01L 23/08 | . |
G01L 23/085 | . . | {by measuring fluctuations of starter motor current or of battery voltage (battery testing arrangements G01R 31/36; testing of electrical installation on transport means G01R 31/005; battery testing arrangements G01R 31/36)} [2013-01] |
G01L 23/10 | . . | by pressure-sensitive members of the piezoelectric type [2023-08] |
G01L 23/12 | . . | by changing capacitance or inductance [2013-01] |
G01L 23/125 | . . . | {by changing capacitance} [2013-01] |
G01L 23/14 | . . | by electromagnetic elements [2013-01] |
G01L 23/145 | . . . | {by magnetostrictive elements} [2013-01] |
G01L 23/16 | . . | by photoelectric means [2013-01] |
G01L 23/18 | . . | by resistance strain gauges [2013-01] |
G01L 23/20 | . | combined with planimeters or integrators [2013-01] |
G01L 23/22 | . | for detecting or indicating knocks in internal-combustion engines; Units comprising pressure-sensitive members combined with ignitors for firing internal-combustion engines [2013-01] |
G01L 23/221 | . . | {for detecting or indicating knocks in internal combustion engines} [2013-01] |
G01L 23/222 | . . . | {using piezoelectric devices} [2013-01] |
G01L 23/223 | . . . | {using magnetic or magnetostrictive means} [2013-01] |
G01L 23/225 | . . . | {circuit arrangements therefor} [2013-01] |
G01L 23/226 | . . . . | {using specific filtering} [2013-01] |
G01L 23/227 | . . . . | {using numerical analyses} [2013-01] |
G01L 2023/228 | . . | {circuit arrangements therefor} [2013-01] |
G01L 23/24 | . | {specially adapted} for measuring pressure in inlet or exhaust ducts of internal-combustion engines [2013-01] |
G01L 23/26 | . | Details or accessories [2013-01] |
G01L 23/28 | . . | Cooling means [2013-01] |
G01L 23/30 | . . | Means for indicating consecutively positions of pistons or cranks of internal-combustion engines in combination with pressure indicators [2013-01] |
G01L 23/32 | . . | Apparatus specially adapted for recording pressure changes measured by indicators [2020-01] |
G01L 25/00 | Testing or calibrating of apparatus for measuring force, torque, work, mechanical power, or mechanical efficiency [2020-01] |
G01L 25/003 | . | {for measuring torque} [2013-01] |
G01L 25/006 | . | {for measuring work or mechanical power or mechanical efficiency} [2013-01] |
G01L 27/00 | Testing or calibrating of apparatus for measuring fluid pressure [2013-01] |
G01L 27/002 | . | {Calibrating, i.e. establishing true relation between transducer output value and value to be measured, zeroing, linearising or span error determination} [2021-05] |
G01L 27/005 | . . | {Apparatus for calibrating pressure sensors} [2013-01] |
G01L 27/007 | . | {Malfunction diagnosis, i.e. diagnosing a sensor defect} [2021-05] |
G01L 27/02 | . | of indicators [2013-01] |