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What is a thermocouple _ instrument

by:JVTIA     2020-10-29
Thermocouple is commonly used in low temperature zone of a kind of temperature measuring element. Thermocouple resistance using material when the temperature changes itself along with the change of characteristics to measure temperature. Thermocouple heated parts ( Thermal element) Is uniform with fine wire wrapped around the insulation materials on the skeleton of measured medium in the presence of temperature gradient, temperature is measured by thermal element is located within the scope of average temperature in the medium layer. Its main features: high accuracy, stable performance. The platinum thermocouple of high precision measurement. Structure features: thermocouple is usually and digital display table, recording instrument and electronic regulator. It can be directly measured from various production process 200 ℃ to + 600 ℃ within the scope of the liquid, steam and gas medium and the temperature of the solid surface. ( 1) Wz thermocouple assembly: usually by the temperature sensing element, main parts, such as installing fixtures and connection box with high measuring accuracy, stable and reliable performance, etc. With pt100 platinum thermocouple widely used in practical application. ( 2) WZPK platinum thermocouple, thermocouple is by the thermal components, wire, insulation materials, stainless steel casing combination solid body, it has the following advantages: slender shape, heat fast response time, vibration resistance, long service life, etc. ( 3) Flame-proof thermocouple, flame-proof thermocouple through the special structure of the junction box, the box inner explosive mixed gas by affected by sparks or electric arc explosion limit within the junction box, production site won't explode. ( 4) End thermocouple: end thermocouple temperature components made by special processing of the resistance wire, close to the face in the thermometer. Compared with general axial thermocouple, it can reflect more correctly and quickly measured end face of the actual temperature, suitable for measuring the surface temperature.
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