How to calculate the allowable error of bimetallic thermometer

A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. Pressure tendency can forecast short term changes in the weather. Numerous measurements of air pressure are used within surface weather analysis. Barometers and pressure altimeters (the most basic and common type of altimeter) are essentially the same instrument, but used for dif...

A bimetallic strip is used to convert a temperature change into mechanical displacement. The strip consists of two strips of different metals which expand at different rates as they are heated, usually steel and copper, or in some cases steel and brass. The strips are joined together throughout their length by riveting, brazing or welding. The different expansions force ...

The length of the bimetallic thermometer protective tube immersed in the measured medium must be longer than that of the temperature sensitive element. Generally, the immersion length is greater than 100 mm, and the immersion length of 0-50 (?) C range is greater than 150 mm, so as to ensure the accuracy of the measurement. Bimetallic thermometers should avoid collision...