The working principle of type health bimetallic thermometer

Type health bimetallic thermometer as a type of double metal thermometer, application in food industry of shows its own unique advantages, in order to let everybody to health type bimetallic thermometer has a preliminary understanding, the following to introduce the working principle of type health bimetallic thermometer. Type health bimetallic thermometer is a kind of measurement in the field of low temperature test instrument. Can be directly measured in the process of various production - 80 ℃ ~ + 600 ℃ within the scope of vapor and liquid gas medium temperature. Bimetallic thermometer health type main component is a use two or more pieces of metal laminate composed of multilayer metal together, using two different metal expansion degree during temperature change the principle of work. Type health bimetallic thermometer is based on the ring around made of bent bimetallic strip. End is heated expands, turns the pointer, the instrument will show thermoelectric potential should value. Working principle of type health bimetallic thermometer is the use of two different temperature expansion coefficient of metal, in order to improve the temperature measuring sensitivity, is usually made of metal spiral coil shape, when multi-layer metal temperature change, the layers of metal expansion or shrinkage, makes the spiral coil rolled up or let go. Type health bimetallic thermometer due to the end fixed and the other end of the spiral coil and a free rotating pointer is linked together, as a result, when the bimetallic strip feel the temperature change, Pointers can be on a circular dividing scale to indicate the temperature. Health type bimetallic thermometer temperature range is - 20℃- + 500 ℃, the permissible error is about 1% of the scale range. Type that is health bimetallic thermometer working principle of the introduction of relevant knowledge, hope we can to look at the health of bimetallic thermometer products.