Armoured thermocouple and overview of the armored resistance and structure principle and characteristics of the release date: 2019 - 05 - 31 reading times: 0

Armoured thermocouple and overview of the armored resistance and structure principle and characteristics of the armored thermocouple and armored thermal resistance are long and thin, easy to bend, heat fast response time, resistance to vibration, high temperature resistance, compressive strength and durability, etc. It can be used for temperature measurement directly, also can be used as inner core components fabricated thermal resistance, thermocouple, beads to replace the traditional porcelain shell element. Product is especially suitable for narrow between pipeline installation, bending and require rapid response, miniaturization and special temperature measuring occasions. Products applicable to the Ann and flame-proof occasions, widely used in petroleum, chemical industry and so on production site with occasions of various kinds of flammable, explosive gas, steam. Armor type thermal resistance, principle of armoured thermocouple structure type thermal resistance, thermocouple by thermal components ( Thermal resistance) , sheathed wire, junction box and a variety of purposes of fixture, a single and double component two specifications. Thermal resistance temperature measurement principle: the heated metal wire resistance varies with the change of temperature, the thermal resistance R ( t) Its relations can be expressed as: the temperature t of R ( t) ＝R0( 1+At+Bt2+……) , according to the measured resistance value is indexing table corresponding to measured temperature t. Thermocouple temperature measurement principle: two different types of metal or alloy wire A, B, called hot electrode, welding is called at the end of the measurement, connect the two ends of the display instrument called the reference side, when the temperature of the measuring end and reference end is not at the same time, can produce thermoelectric potential EAB ( t, t1) 。 When the t1 = 0 ℃ are: the EAB ( t, 0) ＝EAB( t) ＝f( t) Armor type characteristics of thermal resistance, thermocouple sheathed thermal resistance, thermocouple cases that have a variety of materials, with high density in oxidation material insulation, strong pollution resistance and excellent mechanical strength, suitable for installation in harsh environment. Armor type thermal resistance, the main technical parameters of armoured thermocouple thermal resistance index number: Pt100, Cu50 measuring range: Pt100: - 200 ~ 500℃Cu50: - 50～150℃