G
PHYSICS
G
PHYSICS
G01
MEASURING; TESTING
G01
MEASURING; TESTING
G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N29/00
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
G01N29/00
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
G01N29/04
Analysing solids
G01N29/04
Analysing solids
G01N29/09
by measuring mechanical or acoustic impedance
G01N29/09
by measuring mechanical or acoustic impedance