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

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Scope Notes

Limiting references: Investigating strength properties of solid materials by application of mechanical stress Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid Analysing materials by measuring the pressure or volume of a gas or vapour Investigating density or specific gravity of materials; Analysing materials by determining density or specific gravity Investigating flow properties of materials, e.g. viscosity or plasticity; Analysing materials by determining flow properties Investigating surface or boundary effects, e.g. wetting power; Investigating diffusion effects; analysing materials by determining surface, boundary or diffusion effects Investigating characteristics of particles; investigating permeability, pore-volume or surface-area of porous materials Investigating resistance of materials to the weather, to corrosion or to light Investigating materials by mechanical methods Investigating or analysing materials by the use of optical means, i.e. using infrared, visible or ultraviolet light Investigating or analysing materials by the use of microwaves Investigating or analysing materials by the use of other wave or particle radiation, e.g. X-rays or neutrons Investigating or analysing materials by the use of nuclear magnetic resonance, electron paramagnetic resonance or other spin effects Investigating or analysing materials by the use of thermal means Investigating or analysing materials by the use of electric, electrochemical or magnetic means | Application references: Medical or veterinary diagnosis on the human or animal body using ultrasonic, sonic or infrasonic waves, e.g. examination of body cavities or body tracts

Child Classifications

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• G01N 29/02 Analysing fluids
• G01N 29/04 Analysing solids
• G01N 29/14 using acoustic emission techniques
• G01N 29/22 Details
• G01N 29/34 Generating the ultrasonic, sonic or infrasonic waves
• G01N 29/36 Detecting the response signal
• G01N 29/44 Processing the detected response signal