Electric thermo-couple thermo detector

Abstract

The thermoelectric couple temperature measurement device comprises: a thermocouple included two wires to form the measurement port and free end, a holding device with a holding foot for the couple measurement port to provide a preset force and make the port contact with target.

Description

【Technical field】 [0001] The invention relates to a temperature measuring device, in particular to a thermocouple temperature measuring device. 【Background technique】 [0002] Thermocouple is one of the most commonly used temperature detection components in industry at present. Its advantages include: high measurement accuracy, wide temperature measurement range (-200℃--2000℃), point-by-point measurement, simple structure and convenient use. The basic principle of thermocouple temperature measurement is based on the Seebeck effect, that is, two conductors or semiconductors with different components are connected to form a loop. If the temperature of the two connection ends is different, a thermal current will be generated in the loop. Physical phenomenon. [0003] The traditional thermocouple usually consists of two different metal wires, such as a combination of copper or iron, with a protective sleeve outside, and one end of the two thermodes is welded to each other to for...

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Problems solved by technology

However, in the application of traditional thermocouples, the surface of the thermocouple and the object to be measured are often solid, and the wire diameter of the thermocouple itself is very thin, so it is easy to generate interface thermal resistance on the contact surface and cause a temperature difference, which makes the measured temperature and the actual quantity Errors in temperature measurement cause great inconvenience in measurement

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