The bimetallic thermometer and the comparison of thermocouple thermometer

In order to let everyone have a better knowledge of bimetal, we'll look at bimetallic thermometer and the comparison of thermocouple thermometer. 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℃- Liquid + 500 ℃ range steam and gas medium temperature. Bimetallic thermometer is mainly used in industry of element is one with two or more pieces of metal laminate composed of multilayer metal together, using two different metal working in the principle of expansion degree of different temperature changes. End is heated expands, never turns the pointer to indicate the temperature. Thermocouple ( 热电偶) Is commonly used in temperature measuring instrument of temperature measuring element, and it is directly measured temperature, and the temperature signals into a thermoelectric emfs, through electrical instrument ( Secondary instrument) Convert the temperature of the measured medium. The appearance of all kinds of thermocouple is often due to the need to vary, but they are roughly the same basic structure, usually by the hot electrode, insulation sleeve to protect the main parts such as pipe and connection box, and double metal thermometer, usually display meter, recording meter and electronic regulator.