Contact Temperature Sensors

Contact temperature sensors represent a class of temperature probes that are used to determine the temperature of a medium through the thermal equilibrium attained between the sensor and the medium when in contact. The change in the medium temperature is inferred from a corresponding variation in the sensor resistance or output voltage, which can be used to obtain the temperature difference via an a priori calibration of the sensor output with temperature. The commonly implemented contact temperature sensors include thermocouples, resistance temperature detectors (RTDs), and thermistors. 

Radiation thermometers sore used for remote (non-contact) sensing of temperature in situations where the contact sensors cannot be used. Operation is based on the principles of heat transfer through thermal radiation. Radiation thermometers focus the infrared energy from a heat source onto a black body (target) within the radiation thermometer enclosure (Fig. 18.23). One of the contact temperature sensors described previously is incorporated into the target to measure the target temperature. 

Contact temperature sensors represent a class of temperature probes that are used to determine the temperature of a medium through the thermal equilibrium attained... 

Basic Methodology Contact Temperature Sensors Principle and Implementation... 

Figure 1 - Traditional TGA Instruments with Non-contact Temperature Sensors...

Figure 2 - Schematic of TGASST with Direct Contact Temperature Sensor where...

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