The bimetallic thermometer is food thermometer?

Food thermometer is all measuring the temperature of the floorboard of the thermometer, the types of food thermometers according to its using environment is different, also have a digital display and the pointer. Today we are for food thermometer bimetallic thermometer? Say the first food thermometer display, its design is based on the use of solid, liquid and gas is influenced by temperature and heat bilges cold shrink phenomenon. It does not belong to the bimetallic thermometer. Let's take a look at the pointer food thermometer, 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. So it belongs to the bimetallic thermometer. So whether food thermometer bimetallic thermometer, this also have to see the specific thermometer before judgment.