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Industry Information
Thermal resistance of armored thermal resistance changes with temperature
2012-2-24 9:29:54

性能特点铠装热电阻是一种温度传感器,它比装配式热电阻直径小,易弯曲,抗震性好,适宜安装在装配式铠装热电阻无法安装的场合,铠装热电阻具有精确、灵敏、热响应时间快、质量稳定、使用寿命长等优点。 Armored thermal resistance performance characteristics Armored thermal resistance is a type of temperature sensor, which has a smaller diameter than the assembled thermal resistance, is easy to bend, and has good shock resistance. It is suitable for installation where the assembled armored thermal resistance cannot be installed. It has the advantages of accuracy, sensitivity, fast thermal response time, stable quality and long service life. The outer protective sheath of the armored thermal resistor is made of stainless steel and filled with high-density oxidizing material insulators. Therefore, the armored thermal resistor has strong anti-pollution performance and mechanical strength, and is suitable for installation in harsh environments.
Working principle of armored thermal resistance Under the action of temperature, the resistance of the thermal resistance wire changes accordingly. The display instrument will indicate the temperature value corresponding to the resistance value generated by the thermal resistance. The working principle and basic structure of WRK series armored thermocouples are the same as those of ordinary thermocouples. The structural principle of the armored thermocouple is made of a conductor and a high-insulation magnesium oxide jacket 1Cr18Ni9Ti stainless steel protective tube, which is drawn in one piece multiple times. Armored thermocouple is mainly composed of junction box, terminal block and armored thermocouple core, and is equipped with various fixing devices.

There are three types of armored thermocouples: open-end, insulated, and shell-type:

1. Structure of armored thermocouple material

2.Measuring end (hot end) structure

3.Fixture type

固定装置有:固定卡套式,可动卡套式,固定法兰式,可动法兰式四种结构形式。 Armored thermal resistance fixing devices include: fixed card sleeve type, movable card sleeve type, fixed flange type, and movable flange type.

Ferrule threaded joint:

Note: The specifications in the brackets are generally not used. If special specifications are required, they can be ordered.

In order to meet the needs of different industries for the welding structure and size of the fixed flange, users can make special orders according to the actual situation.

Note: Yu specifications are generally not used. For special orders only.

4.Armored thermocouple junction box form:

Armored junction boxes are currently available in simple, waterproof, handle, small junction box, plug-in, and compensating wire types.

application

It is usually used together with display instruments, recording instruments, and computers. Directly measure the temperature of liquid, steam and gas medium and solid surface in the range of -200 ℃ -500 ℃ in various production processes.

Features

Less thermal response time, reducing dynamic errors;
· Small diameter and unlimited length;
High measurement accuracy;
· Imported thin film resistor elements, reliable and stable performance;

working principle

是利用物质在温度变化时,其电阻也随着发生变化的特征来测量温度的。 Armored thermal resistance measures the temperature of a substance as its resistance changes with temperature. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value.

The main technical parameters

Product performance standards
IEC751
JB / T8623-1997
JB / T8622-1997