Thermometers Thermometer Physical Property Measured ldeal gas Pressure and volume of dilute gas Mercury bulb Expansion or contraction of fluid Bimetallic strip Difference in expansion of two solids RTD or Thermistor Electrical resistance Thermocouple Voltage across dissimilar metals Optical Pyrometer Color of emitted light Silicon diode Electrical resistance thermocouple Pt100/1000 Gas Thermometer Silicon diode Germanium 上游充通大 February 28,2019 16 SHANGHAI JIAO TONG UNIVERSITYFebruary 28, 2019 16 Thermometers Gas Thermometer thermocouple Pt100/1000 Silicon diode Germanium