Food with double metal thermometer works?

Food thermometer is a lot of more phyletic, the modern people often visible in the kitchen, today let's talk about one & ndash; — Food with double metal thermometer. Common food with double metal thermometer is as follows: model: PT2005Gwss50017125 types: hot shell bimetallic thermometer structure: axial type material: the SS304 stainless steel surface diameter: 50 mm heat pipe diameter: 3. 8 mm heat pipe length: 125 mm temperature range: - 10/110 ℃ accuracy: & plusmn; 1. Table: 5% glass protection grade: IP55 ( Dust, water) Food with double metal thermometer is a member of the bimetallic thermometer, it works on the basis of the principle of the expansion of the solids, put the two pieces of expansion coefficient difference is very big pieces of metal welded together. When the temperature changes, the difference is very big, caused the different expansion coefficient of expansion and contraction, the deformation of sheet metal bending. According to different deformation and produce different momentum, momentum to drive the connection shaft and the other end of the indicating needle, indicate the temperature.