When you complete this lesson, you will be able to identify various temperature measuring and sensing devices, and describe their operation. • Describe and give examples of the following types of temperature measuring devices: – Thermal Expansion Thermometers – Electrical Thermometers – Infrared Radiation Thermometers • Explain the operation of a resistance temperature detector (RTD) and bridge circuit • Describe how to properly connect a 2-wire or 3-wire RTD to a temperature transmitter • Describe how temperature is measured using a thermocouple • Explain thermocouple compensation and the effect of wires and junctions on accurate temperature measurement • Describe distance-to-size ratio in an infrared radiation thermometer • Explain emissivity in relation to an infrared radiation thermometer
