Question

What is electrical resistance thermometer

Answer 1

it is a device which measures the unit of electrical resistance

Answer 2

Electrical resistance thermometers are sensors used to detect temperature.

These consist of a wire of pure metal and typically Platinum or Nickel or copper which are wrapped around a ceramic or glass Core.

These electrical resistance thermometer are based on the principle that the resistance of an element varies with temperature.

The small resistance change that occurs is measured by means of a wheatstone bridge and dummy leads eliminate the temperature effect on the element leads.

The mean disadvantages of electrical resistance thermometer are that they are fragile and have slow response.