Measuring temperature based on physical or chemical changes not covered by group , , , or

Classification Context

Section:

PHYSICS

Class:

MEASURING; TESTING

Subclass:

MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR

Child Classifications

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• G01K 11/02 using evaporation or sublimation, e.g. by observing boiling
• G01K 11/06 using melting, freezing, or softening
• G01K 11/1 using sintering
• G01K 11/12 using changes in colour, translucency or reflectance
• G01K 11/2 using thermoluminescent materials
• G01K 11/22 using measurement of acoustic effects
• G01K 11/28 using measurements of density
• G01K 11/3 using measurement of the effect of a material on X-radiation, gamma radiation or particle radiation
• G01K 11/32 using changes in transmittance, scattering or luminescence in optical fibres