What is the cause of the bimetallic thermometer?

As we all know, bimetallic thermometer is an instrument of measuring low temperature field in the temperature, it is the working principle of thermal element is composed of two layers of linear expansion coefficient difference is relatively large pieces of metal welded together, one end of the element as the fixed end, on the other side of the free end. When the temperature changes, because the bimetallic strip of material is different, linear expansion coefficient of relatively large differences, and produce different expansion and contraction, leading to the curving deformation of bimetallic strip, equipped with actuator (at the free end Dial pointer and temperature) So that it can directly show the temperature value. Instruments of measuring temperature in many actually, choose what is the cause of the bimetallic thermometer? According to our many years of experience in production of the bimetallic thermometer, we've come to the conclusion that to choose the cause of the bimetallic thermometer the following three: 1. Site display temperature, intuitive and convenient, safe and reliable, long life; 2. Many kinds of structure forms, can meet different requirement, no mercury pollution, easy reading, strong shock resistance; 3. Protection for 1 cr18ni9ti stainless steel tubes, pressure and corrosion ability.