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Bimetallic Thermometer. Definition: The bimetallic thermometer uses the bimetallic strip which converts the temperature into the mechanical displacement. The working of the bimetallic strip depends on the thermal expansion property of the metal.
Aug 28, 2023 · The bimetallic thermometer is a temperature-measuring instrument that operates at the differential thermal expansion principle. It is used in industrial and domestic uses due to its reliable, simple, and cost-effective structure. Let’s discuss its definition, working principle, construction, and variations like spiral and helix strip thermometers.
Jul 25, 2021 · Bimetallic thermometers use two fundamental principles: All metals expand or contract with change in temperature. Temperature coefficients of expansion are not same for all metals and therefore, their rates of expansion or contraction are different.
Jun 18, 2023 · Bimetallic strip thermometers are popular in many industries due to their simplicity, durability, and low cost. They can measure temperatures from below -100 °C to over 500 °C, depending on their design. These devices are fully mechanical and don’t need any power source or electrical circuit.
A bimetallic thermometer is composed of a bimetallic strip that is made by joining two thin strips of two different metals so that they are immobile with respect to one another. Bimetallic strips can be organised in a number of different ways, including flat, spiral, single-helix, and multiple-helix arrangements.
Bimetal thermometers are tried-and-true instruments for measuring temperature in a wide range of industrial applications, combining low cost and low maintenance with easy installation, use, and calibration. Sometimes a measurement technology is so simple yet effective that it becomes – and remains – the standard for decades.
Bimetal thermometers are thermometers based on the functional principle that metals expand differently depending on the change in temperature. A bimetal thermometer always consists of two different metal strips that have a different thermal expansion coefficient.
