Detecting the response signal

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 > Detecting the response signal

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Child Classifications

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• G01N 29/38 by time filtering, e.g. using time gates
• G01N 29/4 by amplitude filtering, e.g. by applying a threshold
• G01N 29/42 by frequency filtering