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IPC Subgroup
G01N 29/44

Processing the detected response signal

Introduced: January 2006

Full Title

Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object > Processing the detected response signal

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

4 direct subcodes

Child Classifications

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  • G01N 29/46 by spectral analysis, e.g. Fourier analysis
  • G01N 29/48 by amplitude comparison
  • G01N 29/5 using auto-correlation techniques or cross-correlation techniques
  • G01N 29/52 using inversion methods other than spectral analysis, e.g. conjugated gradient inversion