(0)G01H:0/0:
IPC6
SECTION G - PHYSICS
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC...
G01H
1/1

G 01 H

 MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC OR INFRASONIC WAVES (generation of mechanical vibrations without measurement B 06 B, G 10 K; measuring position, direction or velocity of an object G 01 C, G 01 S; measuring quasi-steady pressure of a fluid G 01 L 7/00; determining unbalance G 01 M 1/14; determining properties of material by sonic or ultrasonic waves transmitted therethrough G 01 N; systems using the reflection or reradiation of acoustic waves, e.g. acoustic imaging, G 01 S 15/00; seismology, seismic prospecting, acoustic prospecting G 01 V 1/00; acousto-optical devices per se G 02 F; obtaining records by techniques analogous to photography using ultrasonic, sonic or infrasonic waves G 03 B 42/06; speech analysis or synthesis, speech recognition G 10 L; information storage based on relative movement between record carrier and transducer G 11 B; piezo-electric, electrostrictive or magnetostrictive elements in general H 01 L; manufacture of electromechanical resonators by processes which include measurement of frequency with consequential modification of the resonator H 03 H 3/00; pictorial communication using ultrasonic, sonic or infrasonic waves converted into electric picture-representative signals H 04 N, e.g. H 04 N 5/31) [4]
 

Notes

(1)

 This subclass covers the combination of generation and measurement of mechanical vibrations.

(2)

 Attention is drawn to the Notes following the title of class G 01.

 

 

 
 

 1
/ 00 Measuring vibrations in solids by using direct conduction to the detector (G 01 H 9/00 , G 01 H 11/00 take precedence)

1
/ 04 • of vibrations which are transverse to direction of propagation  

1
/ 06 • • Frequency  

1
/ 08 • • Amplitude  

1
/ 10 • of torsional vibrations  

1
/ 12 • of longitudinal or not specified vibrations [4]  

1
/ 14 • • Frequency [4]  

1
/ 16 • • Amplitude [4]  
 

 3
/ 00 Measuring vibrations by using a detector in a fluid (G 01 H 7/00, G 01 H 9/00, G 01 H 11/00 take precedence)

3
/ 04 • Frequency  

3
/ 06 • • by electric means  

3
/ 08 • • Analysing frequencies present in complex vibrations, e.g. comparing harmonics present  

3
/ 10 • Amplitude; Power  

3
/ 12 • • by electric means (G 01 H 3/14 takes precedence) [2]  

3
/ 14 • • Measuring mean amplitude; Measuring mean power; Measuring time integral of power  [2]  
 

 5
/ 00 Measuring propagation velocity of ultrasonic, sonic or infrasonic waves
 

 7
/ 00 Measuring reverberation time (measuring absorption of vibrations in a material G 01 N; arrangements for producing a reverberation G 10 K 15/08)
 

 9
/ 00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by using radiation-sensitive means, e.g. optical means
 

 11
/ 00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves by detecting changes in electric or magnetic properties

11
/ 02 • by magnetic means, e.g. reluctance [4]  

11
/ 04 • • using magnetostrictive devices [4]  

11
/ 06 • by electric means [4]  

11
/ 08 • • using piezo-electric devices [4]  
 

 13
/ 00 Measuring resonant frequency
 

 15
/ 00 Measuring mechanical or acoustic impedance [3]
 

 17
/ 00 Measuring mechanical vibrations or ultrasonic, sonic or infrasonic waves, not provided for in the preceding groups [4]