Where does a bimetal thermometer sense temperature?
Which part of the bimetal thermometer senses temperature? Many people are not very clear about this issue, and there are also many technical problems in use. In order to let everyone use the bimetal thermometer better during the operation. Let's talk about which part of a bimetal thermometer senses temperature? Is it the whole tube? Or the tube head?
1. The bimetal thermometer uses two metals with different temperature expansion coefficients, one end is welded on the fixed point, and the other end is twisted when the temperature changes, which is converted into the deflection angle of the pointer to indicate the temperature. That's how bimetals work, and it gives us a good idea of how bimetal thermometers work and how they sense temperature.
2. Is the outer wall of the tube also sensitive to temperature? Can I tell you clearly that the outer wall of the tube senses the temperature change inside, which can be said to be the temperature of the entire tube.
3. Are the outer wall metal and the inner spiral metal called bimetal? Regarding this issue, the editor's explanation is that there is a wire-shaped metal in the tube connected to the spiral-shaped metal.
Through the above three points, we can clearly know which part of the bimetal thermometer senses the temperature? And whether the outer wall of the tube senses temperature and so on. A clear understanding of these problems can allow us to avoid mistakes in use, resulting in measurement errors of bimetal thermometers and affecting measurement results.
