Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat (giving results other than momentary value of temperature G01K3/00)

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• G01K 7/003
• G01K 7/006
• G01K 7/01 using semiconducting elements having PN junctions (G01K7/02, G01K7/16, G01K7/30 take precedence)
• G01K 7/02 using thermoelectric elements, e.g. thermocouples
• G01K 7/16 using resistive elements
• G01K 7/30 using thermal noise of resistances or conductors
• G01K 7/32 using change of resonant frequency of a crystal
• G01K 7/34 using capacitative elements (capacitors per se H01G)
• G01K 7/36 using magnetic elements, e.g. magnets, coils (magnetic elements per se H01F)
• G01K 7/40 using ionisation of gases
• G01K 7/42 Circuits effecting compensation of thermal inertia; Circuits for predicting the stationary value of a temperature