Bimetallic thermometers use a bimetallic strip to convert temperature changes into mechanical displacement. The core operating idea is based on the expansion of metals who changes their volume in response to temperature fluctuations. Bimetallic strips are composed of two thin strips of different metals bonded together at one end by welding to ensure there is no relative movement between the metals.
Because of the different metals used in the construction of the bimetallic strip, the lengths of the metals change at different rates. As the temperature increases, the strip bends toward the metal with a lower temperature coefficient, and as the temperature decreases, the strip bends toward the metal with a higher temperature coefficient. The degree of bending or twisting is directly proportional to the temperature fluctuation which is indicated by a pointer on the dial.
Bimetallic thermometers are suitable for measurement and regulation of temperature for following advantages:
Simple and cost-effective: Bimetallic thermometers are simple in design, easy to manufacture and operate, requiring no power source or circuitry that save cost and maintenance.
Mechanical operation: The thermometer operates based on mechanical principle without needs of calibration and adjustment. Its reading is not affected by electromagnetic interference or noise.
Rugged and stable: Bimetallic thermometer can be made of corrosion-resistant and durable metal material that can withstand extreme temperature, pressure, and vibration impact without compromising its precision or function.
In summary, bimetallic thermometers are inexpensive and convenient devices providing mechanical temperature measurement. This kind of temperature gauge is suitable for applications that do not require superb precision or digital display and the temperature range is within operating limit of the bimetallic strip. Shanghai WangYuan is able to supply quality and cost-effective bimetallic thermometers and other temperature measuring devices exactly compliant with customer’s demands for range, materials and dimension.
Post time: Aug-19-2024