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CPC
COOPERATIVE PATENT CLASSIFICATION
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G01K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR (sensing temperature changes for compensating measurements of other variables for compensating readings of instruments for variation in temperature, see G01D or relevant subclasses for variable measured; radiation pyrometry G01J; investigating or analysing materials by use of thermal means G01N 25/00; compound sensitive elements, e.g. bimetallic, G12B 1/02)
NOTE
-
In this subclass, the following term is used with the meaning indicated :
- "thermometer" includes thermally-sensitive elements not provided for in other subclasses.

Attention is drawn to the Notes following the title of class G01.

Attention is drawn to the Notes following the titles of class B81 and subclass B81B relating to "micro-structural devices" and "micro-structural systems".

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G01K 1/00
Details of thermometers not specially adapted for particular types of thermometer (circuits for reducing thermal inertia G01K 7/42)
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G01K 1/02
.
Special applications of indicating or recording means, e.g. for remote indications
G01K 1/022
. .
{
recording means
}
G01K 1/024
. .
{
for remote indication (remote indication per se G08C)
}
G01K 1/026
. .
{
arrangements for monitoring a plurality of temperatures, e.g. by multiplexing
}
G01K 1/028
. .
{
arrangements for numerical indication
}
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G01K 1/04
. .
Scales
G01K 1/045
. . .
{
temperature indication combined with the indication of another variable (indicating of human comfort G01W 1/17)
}
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G01K 1/06
. . .
Arrangements for facilitating reading, e.g. illumination, magnifying glass
G01K 1/065
. . . .
{
of liquid column thermometers
}
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G01K 1/08
.
Protective devices, e.g. casings
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G01K 1/083
. .
{
for clinical thermometers, e.g. contaimination preventing sleeves
}
G01K 1/086
. . .
{
for tympanic thermometers
}
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G01K 1/10
. .
for preventing chemical attack
G01K 1/105
. . .
{
for siderurgical use
}
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G01K 1/12
. .
for preventing damage due to heat overloading
G01K 1/125
. . .
{
for siderurgical use
}
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G01K 1/14
.
Supports; Fastening devices; Mounting thermometers in particular locations
G01K 1/143
. .
{
for measuring surface temperatures, e.g. of pipe walls
}
G01K 1/146
. .
{
arrangements for moving thermometers to or from a measuring position
}
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G01K 1/16
.
Special arrangements for conducting heat from the object to the sensitive element
G01K 1/165
. .
{
for application in zero heat flux sensors
}
G01K 1/18
. .
for reducing thermal inertia
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G01K 1/20
.
Compensating for effects of temperature changes other than those to be measured, e.g. changes in ambient temperature
G01K 1/22
. .
by means of fluid contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the fluid
G01K 1/24
. .
by means of compounded strips or plates, e.g. by bimetallic strips
G01K 1/26
.
Compensating for effects of pressure changes
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G01K 3/00
Thermometers giving results other than momentary value of temperature (G01K 7/42 takes precedence)
G01K 3/005
.
{
Circuits arrangements for indicating a predetermined temperature (fire detection G08B 17/00)
}
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G01K 3/02
.
giving means values; giving integrated values
G01K 3/04
. .
in respect of time
G01K 3/06
. .
in respect of space
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G01K 3/08
.
giving differences of values (using thermoelectric elements G01K 7/02); giving differentiated values
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G01K 3/10
. .
in respect of time, e.g. reacting only to a quick change of temperature
G01K 3/12
. . .
based upon expansion or contraction of materials
G01K 3/14
. .
in respect of space
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G01K 5/00
Measuring temperature based on the expansion or contraction of a material (G01K 9/00 takes precedence; giving other than momentary value of temperature G01K 3/00; of vapour arising from a liquid G01K 11/02; thermally-actuated switches H01H)
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G01K 5/02
.
the material being a liquid (contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the material G01K 5/32)
G01K 5/025
. .
{
Manufacturing of this particular type of thermometer
}
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G01K 5/04
. .
Details
G01K 5/06
. . .
Arrangements for driving back the liquid column
G01K 5/08
. . .
Capillary tubes
G01K 5/10
. . .
Containers for the liquid
G01K 5/12
. . .
Selection of liquid compositions
G01K 5/14
. .
the liquid displacing a further liquid column or a solid body (for maximum or minimum indication G01K 5/20)
G01K 5/16
. .
with electric contacts
G01K 5/18
. .
with electric conversion means for final indication
G01K 5/20
. .
with means for indicating a maximum or a minimum or both (G01K 5/22 takes precedence)
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G01K 5/22
. .
with provision for expansion indicating over not more than a few degrees, e.g. clinical thermometer
G01K 5/225
. . .
{
with means for indicating a maximum, e.g. a constriction in the capillary tube
}
G01K 5/24
. .
with provision for measuring the difference between two temperatures
G01K 5/26
. .
with provision for adjusting zero point of scale, e.g. Beckmann thermometer
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G01K 5/28
.
the material being a gas (contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the material G01K 5/32)
G01K 5/30
. .
the gas displacing a liquid column
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G01K 5/32
.
the material being a fluid contained in a hollow body having parts which are deformable or displaceable (under pressure developed by evaporation G01K 11/04; pressure measuring devices in general G01L)
G01K 5/323
. .
{
Selection of fluid compositions
}
G01K 5/326
. .
{
using a fluid container connected to the deformable body by means of a capillary tube
}
G01K 5/34
. .
the body being a capsule (G01K 5/36, G01K 5/42 take precedence)
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G01K 5/36
. .
the body being a tubular spring, e.g. Bourdon tube
G01K 5/38
. . .
of spiral formation
G01K 5/40
. . .
of helical formation
G01K 5/42
. .
the body being a bellows
G01K 5/44
. .
the body being a cylinder and piston
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G01K 5/46
. .
with electric conversion means for final indication
G01K 5/465
. . .
{
using electrical contact making or breaking devices
}
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G01K 5/48
.
the material being a solid
G01K 5/483
. .
{
using materials with a configuration memory e.g. Ni-Ti alloys
}
G01K 5/486
. .
{
using microstructures, e.g. made of silicon (G01K 7/015, G01K 7/028, G01K 7/226, G01K 17/006 take precedence)
}
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G01K 5/50
. .
arranged for free expansion or contraction
G01K 5/52
. . .
with electrical conversion means for final indication
G01K 5/54
. .
consisting of pivotally-connected elements
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G01K 5/56
. .
constrained so that expansion or contraction causes a deformation of the solid
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G01K 5/58
. . .
the solid body being constrained at more than one point, e.g. rod, plate, diaphragm (G01K 5/62 takes precedence)
G01K 5/60
. . . .
the body being a flexible wire or ribbon
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G01K 5/62
. . .
the solid body being formed of compounded strips or plates, e.g. bimetallic strip
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G01K 5/64
. . . .
Details of the compounds system
G01K 5/66
. . . . .
Selection of composition of the components of the system
G01K 5/68
. . . . .
Shape of the system
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G01K 5/70
. . . .
specially adapted for indicating or recording
G01K 5/72
. . . . .
with electric transmission means for final indication
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G01K 7/00
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat (giving results other than momentary value of temperature G01K 3/00; measuring electric or magnetic variables G01R);
{
Power supply, e.g. by thermoelectric elements
}
G01K 7/003
.
{
using pyroelectric elements (radiation pyrometers G01J 5/00)
}
G01K 7/006
.
{
using superconductive elements
}
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G01K 7/01
.
using semiconducting elements having PN junctions (G01K 7/02, G01K 7/16, G01K 7/30 take precedence)
G01K 7/015
. .
{
using microstructures, e.g. made of silicon
}
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G01K 7/02
.
using thermoelectric elements, e.g. thermocouples (
{
cooling arrangements in electronic devices using the Peltier effect H01L 23/38;
}
 thermo-electric or thermo-magnetic devices per se H01L 35/00, H01L 37/00)
G01K 7/021
. .
{
Particular circuit arrangements (G01K 7/026, G01K 7/12, G01K 7/14 take precedence)
}
G01K 7/023
. .
{
provided with specially adapted connectors (connectors per se H01R)
}
G01K 7/025
. .
{
expendable thermocouples
}
G01K 7/026
. .
{
Arrangements for signalling rupture or disconnection of the thermocouple
}
G01K 7/028
. .
{
using microstructures, e.g. made of silicon
}
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G01K 7/04
. .
the object to be measured not forming one of the thermo-electric materials
G01K 7/06
. . .
the thermo-electric materials being arranged one within the other with the junction at one end exposed to the object, e.g. sheathed type
G01K 7/08
. .
the object to be measured forming one of the thermo-electric materials, e.g. pointed type
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G01K 7/10
. .
Arrangements for compensating for auxiliary variables, e.g. length of lead
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G01K 7/12
. . .
Arrangements with respect to the cold junction, e.g. preventing influence of temperature of surrounding air
G01K 7/13
. . . .
Circuits for cold-junction compensation
G01K 7/14
. .
Arrangements for modifying the output characteristic, e.g. linearising
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G01K 7/16
.
using resistive elements (resistive elements per se H01C, H01L)
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G01K 7/18
. .
the element being a linear resistance, e.g. platinum resistance thermometer (G01K 7/26 takes precedence)
G01K 7/183
. . .
{
characterised by the use of the resistive element
}
G01K 7/186
. . .
{
using microstructures
}
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G01K 7/20
. . .
in a specially-adapted circuit, e.g. bridge circuit
G01K 7/203
. . . .
{
in an oscillator circuit
}
G01K 7/206
. . . .
{
in a potentiometer circuit
}
G01K 7/21
. . . .
for modifying the output characteristic, e.g. linearising
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G01K 7/22
. .
the element being a non-linear resistance, e.g. thermistor (G01K 7/26 takes precedence)
G01K 7/223
. . .
{
characterised by the shape of the resistive element
}
G01K 7/226
. . .
{
using microstructures, e.g. silicon spreading resistance
}
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G01K 7/24
. . .
in a specially-adapted circuit, e.g. bridge circuit
G01K 7/245
. . . .
{
in an oscillator circuit
}
G01K 7/25
. . . .
for modifying the output characteristic, e.g. linearising
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G01K 7/26
. .
the element being an electrolyte
G01K 7/28
. . .
in a specially-adapted circuit, e.g. bridge circuit
G01K 7/30
.
using thermal noise of resistances or conductors
G01K 7/32
.
using change of resonant frequency of a crystal
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G01K 7/34
.
using capacitative elements (capacitors per se H01G)
G01K 7/343
. .
{
the dielectric constant of which is temperature dependant
}
G01K 7/346
. .
{
for measuring temperature based on the time delay of a signal through a series of logical ports
}
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G01K 7/36
.
using magnetic elements, e.g. magnets, coils (magnetic elements per se H01F)
G01K 7/38
. .
the variations of temperature influencing the magnetic permeability
G01K 7/40
.
using ionisation of gases
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G01K 7/42
.
Circuits for reducing thermal inertia; Circuits for predicting the stationary value of temperature
G01K 7/425
. .
{
Thermal management of integrated systems
}
G01K 7/427
. .
{
Temperature calculation based on spatial modeling, e.g. spatial inter- or extrapolation
}
G01K 9/00
Measuring temperature based on movements caused by redistribution of weight, e.g. tilting thermometer (not giving momentary value of temperature G01K 3/00)
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G01K 11/00
Measuring temperature based upon physical or chemical changes not covered by groups G01K 3/00, G01K 5/00, G01K 7/00 or G01K 9/00
G01K 11/003
.
{
using absorption or generation of gas, e.g. hydrogen
}
G01K 11/006
.
{
using measurement of the effect of a material on microwaves or longer electromagnetic waves, e.g. measuring temperature via microwaves emitted by the object (G01K 17/003, G01J 5/00 take precedence; measuring the effect of a material on X-, gamma- or particle radiation G01K 11/30)
}
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G01K 11/02
.
using evaporation or sublimation, e.g. by observing boiling
G01K 11/04
. .
from material contained in a hollow body having parts which are deformable or displaceable under the pressure developed by the vapour
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G01K 11/06
.
using melting, freezing, or softening
G01K 11/08
. .
of disposable test bodies, e.g. cone
G01K 11/10
.
using sintering
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G01K 11/12
.
using change of colour or translucency (G01K 11/32 takes precedence; heat-sensitive sheets for use in thermography B41M 5/00;
{
tenebrescent compositions C09K 9/00
}
)
G01K 11/125
. .
{
using change in reflectance
}
G01K 11/14
. .
of inorganic materials
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G01K 11/16
. .
of organic materials
G01K 11/165
. . .
{
liquid crystals (liquid crystal compositions C09K 19/00; electro-optic liquid crystals G02F 1/13)
}
G01K 11/18
. .
of materials which change translucency
G01K 11/20
.
using thermoluminescent materials (G01K 11/32 takes precedence)
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G01K 11/22
.
using measurement of acoustic effects
G01K 11/24
. .
of the velocity of propagation of sound
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G01K 11/26
. .
of resonant frequencies
G01K 11/265
. . .
{
using surface acoustic wave (SAW)
}
G01K 11/28
.
using measurements of density (measuring density in general G01N 9/00])
G01K 11/30
.
using measurement of the effect of a material on X-radiation, gamma radiation or particle radiation
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G01K 11/32
.
using changes in transmission, scattering or fluorescence in optical fibres
{
(in general G01D 5/268)
}
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G01K 11/3206
. .
{
at discrete locations in the fibre, e.g. by means of Bragg gratings
}
G01K 11/3213
. . .
{
using changes in fluorescence, e.g. at the distal end of the fibre
}
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G01K 13/00
Adaptations of thermometers for specific purposes
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G01K 13/002
.
{
for measuring body temperature (G01K 5/22 takes precedence; for prediction aspects G01K 7/42; diagnostic temperature sensing A61M 39/0247)
}
G01K 13/004
. .
{
Infrared clinical thermometers, e.g. tympanic
}
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G01K 13/006
.
{
for cryogenic purposes
}
G01K 13/008
. .
{
using microstructures, e.g. made of silicon
}
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G01K 13/02
.
for measuring temperature of moving fluids or granular materials capable of flow
G01K 13/022
. .
{
Suction thermometers
}
G01K 13/028
. .
{
for use in total air temperature [TAT] probes
}
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G01K 13/04
.
for measuring temperature of moving solid bodies
G01K 13/06
. .
in linear movement
G01K 13/08
. .
in rotary movement
G01K 13/10
.
for measuring temperature within piled or stacked materials (by special arrangements for conducting heat from the object to the sensitive heat element G01K 1/16)
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G01K 13/12
.
combined with sampling devices for measuring temperatures of samples of materials
G01K 13/125
. .
{
for siderurgical purposes
}
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G01K 15/00
Testing or calibrating of thermometers
G01K 15/002
.
{
Calibrated temperature sources, temperature standards therefor (arrangements with respect to the cold junction of thermo-electric elements G01K 7/12)
}
G01K 15/005
.
{
Calibration
}
G01K 15/007
.
{
Testing
}
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G01K 17/00
Measuring quantity of heat (measuring temperature by calorimetry G01K 3/00 to G01K 11/00; specially adapted for measuring thermal properties of materials, e.g. specific heat, heat of combustion G01N)
G01K 17/003
.
{
for measuring the power of light beams, e.g. laser beams
}
G01K 17/006
.
{
Microcalorimeters, e.g. using silicon microstructures
}
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G01K 17/02
.
Calorimeters using transport of an indicating substances, e.g. evaporation calorimeters
G01K 17/025
. .
{
where evaporation, sublimation or condensation caused by heating or cooling, is measured
}
G01K 17/04
.
Calorimeters using compensation methods
{
i.e. where the absorbed or released quantity of heat to be measured is compensated by a measured quantity of heating or cooling
}
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G01K 17/06
.
Measuring quantity of heat conveyed by flowing mediums, e.g. in heating systems (G01K 17/02, G01K 17/04 take precedence)
{
e.g. the quantity of heat in a transporting medium, delivered to or consumed in an expenditure device
}
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G01K 17/08
. .
based upon measurement of temperature difference
{
or of a temperature
}
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G01K 17/10
. . .
between an inlet and an outlet point, combined with measurement of rate of flow of the medium
{
if such, by integration during a certain time-interval
}
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G01K 17/12
. . . .
Indicating product of flow and temperature difference directly
{
or temperature
}
G01K 17/14
. . . . .
using mechanical means for both measurements
G01K 17/16
. . . . .
using electrical
{
or magnetic
}
 means for both measurements
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G01K 17/18
. . . . .
using electrical
{
or magnetic
}
 means for one measurement and mechanical means for the other
G01K 17/185
. . . . . .
{
where the indicating-instrument is driven electrically or magnetically by the temperature-measurement device and mechanically by the flow-measurement device
}
G01K 17/20
. . .
across a radiating surface, combined with ascertainment of the heat transmission coefficient
{
(materials therefor G01K 17/08)
}
G01K 19/00
Testing or calibrating calorimeters
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G01K 2003/00
Thermometers giving results other than momentary value of temperature (G01K 7/42 takes precedence)
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G01K 2003/08
.
giving differences of values (using thermoelectric elements G01K 7/02); giving differentiated values
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G01K 2003/14
. .
in respect of space
G01K 2003/145
. . .
Hotspot localization
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G01K 2007/00
Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat (giving results other than momentary value of temperature G01K 3/00; measuring electric or magnetic variables G01R);
{
Power supply, e.g. by thermoelectric elements
}
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G01K 2007/16
.
using resistive elements (resistive elements per se H01C, H01L)
G01K 2007/163
. .
provided with specially adapted connectors
G01K 2007/166
. .
Electrical time domain reflectometry
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G01K 2007/42
.
Circuits for reducing thermal inertia; Circuits for predicting the stationary value of temperature
G01K 2007/422
. .
Dummy objects used for estimating temperature of real objects
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G01K 2011/00
Measuring temperature based upon physical or chemical changes not covered by groups G01K 3/00, G01K 5/00, G01K 7/00 or G01K 9/00
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G01K 2011/32
.
using changes in transmission, scattering or fluorescence in optical fibres
{
(in general G01D 5/268)
}
G01K 2011/322
. .
using Brillouin scattering
G01K 2011/324
. .
using Raman scattering
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G01K 2013/00
Adaptations of thermometers for specific purposes
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G01K 2013/02
.
for measuring temperature of moving fluids or granular materials capable of flow
G01K 2013/024
. .
Moving gas
G01K 2013/026
. .
Moving liquid
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G01K 2201/00
Application of thermometers in air-conditioning systems
G01K 2201/02
.
in vehicles
G01K 2203/00
Application of thermometers in cryogenics
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G01K 2205/00
Application of thermometers in motors, e.g. of a vehicle
G01K 2205/02
.
for measuring inlet gas temperature
G01K 2205/04
.
for measuring exhaust gas temperature
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G01K 2207/00
Application of thermometers in household appliances
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G01K 2207/02
.
for measuring food temperature
G01K 2207/04
. .
for conservation purposes
G01K 2207/06
. .
for preparation purposes
G01K 2207/08
. .
with food recipients having temperature sensing capability
G01K 2211/00
Thermometers based on nanotechnology
G01K 2213/00
Temperature mapping
G01K 2215/00
Details concerning sensor power supply
G01K 2217/00
Temperature measurement using electric or magnetic components already present in the system to be measured
G01K 2219/00
Thermometers with dedicated analog to digital converters
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Last Modified: 04/16/2013 4:31:16 PM