Temperature Measurement and Data Acquisition

Temperature values are one of the most common elements measured in any data acquisition system. Temperature
measurements are often required in production test systems, energy management systems, environmental monitoring,
aviation systems and more. These temperature values are often measured with sensors such as RTD’s (Resistance
Temperature Detectors), thermistors, or thermocouples.

Each of these temperature sensors include unique measurement characteristics that must be considered when
selecting sensors for a data acquisition system. Characteristics such as measurement range, accuracy, and the
electronic circuitry required to measure the sensor are all important considerations. The physical packaging style of
the sensor may also be a consideration. For example, will a thermocouple with twisted wires be acceptable, or does the
application require a screw in metal probe? These characteristics all need to be considered.