1. CPC Sections
  2. CPC Section G
  3. CPC Class G01
  4. CPC Subclass G01H
Printable version [PDF]
Version: 2025.01
Loading Scheme...
CPC
COOPERATIVE PATENT CLASSIFICATION
​​
G01H
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES [2020-08]
NOTES

  • This subclass covers the combination of generation and measurement of mechanical vibrations.
  • Attention is drawn to the Notes following the title of class G01.
WARNING

  • In this subclass non-limiting references (in the sense of paragraph 39 of the Guide to the IPC) may still be displayed in the scheme.
G01H 1/00
Measuring {characteristics of} vibrations in solids by using direct conduction to the detector (G01H 9/00, G01H 11/00 take precedence) [2013-01]
G01H 1/003
.
{of rotating machines (G01H 1/10 takes precedence)} [2013-01]
G01H 1/006
. .
{of the rotor of turbo machines} [2013-01]
G01H 1/04
.
of vibrations which are transverse to direction of propagation [2013-01]
G01H 1/06
. .
Frequency [2013-01]
G01H 1/08
. .
Amplitude [2013-01]
G01H 1/10
.
of torsional vibrations [2013-01]
G01H 1/12
.
of longitudinal or not specified vibrations [2013-01]
G01H 1/14
. .
Frequency [2013-01]
G01H 1/16
. .
Amplitude [2013-01]
G01H 3/00
Measuring {characteristics of} vibrations by using a detector in a fluid (G01H 7/00, G01H 9/00, G01H 11/00 take precedence) [2013-01]
G01H 3/005
.
{Testing or calibrating of detectors covered by the subgroups of G01H 3/00 (calibrating geophysical instruments, e.g. seismic receivers G01V 13/00)} [2013-01]
G01H 3/04
.
Frequency [2013-01]
G01H 3/06
. .
by electric means [2013-01]
G01H 3/08
. .
Analysing frequencies present in complex vibrations, e.g. comparing harmonics present {(acoustic presence detection G01V 1/001)} [2013-01]
G01H 3/10
.
Amplitude; Power [2013-01]
G01H 3/12
. .
by electric means (G01H 3/14 takes precedence) [2013-01]
G01H 3/125
. . .
{for representing acoustic field distribution (using optical means G01H 9/002; sonar systems for imaging G01S 7/56, G01S 15/89; acoustic holography G03H 3/00)} [2013-01]
G01H 3/14
. .
Measuring mean amplitude; Measuring mean power; Measuring time integral of power [2013-01]
G01H 5/00
Measuring propagation velocity of ultrasonic, sonic or infrasonic waves {, e.g. of pressure waves} [2017-08]
G01H 7/00
Measuring reverberation time {; room acoustic measurements} [2020-08]
G01H 9/00
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means [2013-01]
G01H 9/002
.
{for representing acoustic field distribution (sonar systems for imaging G01S 7/56, G01S 15/89; acoustic holography G03H 3/00)} [2013-01]
G01H 9/004
.
{using fibre optic sensors (light guides per se G02B 6/00, acousto-optical devices specially adapted for gating or modulating in optical wave guides G02F 1/125)} [2013-01]
G01H 9/006
. .
{the vibrations causing a variation in the relative position of the end of a fibre and another element} [2013-01]
G01H 9/008
.
{by using ultrasonic waves (measuring position using ultrasonic waves G01S 15/02)} [2013-01]
G01H 11/00
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties [2020-08]
G01H 11/02
.
by magnetic means, e.g. reluctance [2016-08]
G01H 11/04
. .
using magnetostrictive devices [2013-01]
G01H 11/06
.
by electric means [2013-01]
G01H 11/08
. .
using piezoelectric devices [2023-08]
G01H 13/00
Measuring resonant frequency [2013-01]
G01H 15/00
Measuring mechanical or acoustic impedance [2013-01]
G01H 17/00
Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups {(see provisionally also G01H 1/00)} [2013-01]