Bimetallic Temperature Measuring Instruments or Bimetallic Thermometers

Bimetallic Temperature Measuring Instruments or Bimetallic Thermometers

Bimetallic devices take advantage of the metal's expansion when heated. In these devices, two metals are bonded together and mechanically connected to the pointer. A bimetallic device causes one side of the bimetallic strip to expand more than the other when heated. And when the pointer is properly formed, the temperature measurement is displayed.
A bimetallic instrument is a device for measuring temperature. A bimetallic device is a mechanical thermometer that indicates temperature by mechanical displacement using a bimetallic strip. Bimetallic thermometers are simpler in design and less expensive. A bimetallic thermometer is a mechanical thermometer and does not require any kind of power source. Also bimetallic thermometers are cheap to install and easy to maintain. Bimetallic thermometers are basically used over a wide temperature range. A bimetallic thermometer does not give correct readings at low temperatures
Bimetallic thermometers are mainly used in air conditioners, ovens, thermostats, hotwires, control devices, refineries, heaters and oil burners.

Types of bimetallic thermometers

  • Helix Strip Bimetallic Thermometer
  • Spiral strip bimetallic thermometer

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