RESISTANCE TEMPERATURE DETECTORS (RTDs)

The resistance of certain metals will change as temperature changes. This characteristic is the basis for the operation of an RTD.

EO 1.1 DESCRIBE the construction of a basic RTD including:

a. Major component arrangement

b. Materials used

EO 1.2 EXPLAIN how RTD resistance varies for the following:

a. An increase in temperature

b. A decrease in temperature

EO 1.3 EXPLAIN how an RTD provides an output representative of the measured temperature.