differential thermometer的意思|示意

Differential thermometer, also known as temperature difference thermometer, is an instrument used to measure the difference between two temperatures. It is widely used in industrial field, such as measuring temperature differences in furnace or measuring the temperature difference between heating and cooling.

Differential thermometer is composed of two thermocouples, which are connected in series at the same time and lead out at the same end. The principle is that the temperature difference between two thermocouples is measured by the force of thermal electromotive force. Because of the different temperature of two thermocouples, the potential difference between the leads is formed, the greater the temperature difference, the greater the voltage difference.

The usage of differential thermometer is quite simple. First, fix two thermocouples at two different locations or machines, then plug the wires of the thermocouples into the instrument and adjust the range. Finally, the temperature difference between the two thermocouples can be displayed directly on the instrument.

Differential thermometer is an important instrument for temperature measurement and control in modern industrial production. It is of great significance and application value.