Explosion proof bimetallic thermometer -2025

Explosion proof bimetallic thermometerIt is a sensor used to measure temperature in high-temperature environments. It adopts the thermal sensitivity of bimetallic materials and achieves temperature measurement through the difference in thermal expansion of metals.

The working principle is based on two metal sheets with different coefficients of thermal expansion (usually stainless steel and copper) being welded or bonded together to form a composite structure. When the temperature rises, the two metal sheets undergo varying degrees of deformation due to their different coefficients of thermal expansion, causing the entire bimetallic sheet to bend. The degree of curvature is directly proportional to the temperature.

The structural design enables it to work in high-temperature environments and has explosion-proof performance. It usually includes a sealed metal casing to prevent the internal circuitry of the thermometer from coming into contact with external gases or liquids. This design makes explosion-proof bimetallic thermometers suitable for some industrial sites with explosion risks, such as chemical, petroleum, natural gas and other industries.

The advantages include simple structure, high reliability, and relatively low cost. It can measure over a wide temperature range and has a fast response speed.

Explosion proof bimetallic thermometer