The difference between assembled thermal resistor and armored thermal resistor

As a commonly used temperature measuring element, thermal resistors have been widely used in various fields. According to the different structures and installation methods, thermal resistors can be divided into assembled thermal resistors and armored thermal resistors. The following will introduce the differences between the two thermal resistors in detail.

Assembled thermal resistor

1. Structural characteristics

1. Assembled thermal resistor: Assembled thermal resistors are mainly composed of temperature sensing elements, connecting wires and junction boxes. Temperature sensing elements are usually made of platinum wire or copper wire, with high precision and stability. The connecting wire is used to transmit the signal of the temperature sensing element to the junction box, which is equipped with wiring terminals for convenient connection with other equipment.

2. Armored thermal resistor: Armored thermal resistors are based on assembled thermal resistors and have an additional layer of metal armor. The armor layer can effectively protect the temperature sensing element from external mechanical damage and improve the service life and reliability of the thermal resistor. In addition, armored thermal resistors can also reduce heat loss and improve measurement accuracy.

II. Installation method

1. Assembled thermal resistor: The installation of assembled thermal resistor is relatively simple. You only need to fix the temperature sensing element on the object to be measured, and then transmit the signal to the junction box through the connecting wire. This installation method is suitable for various types of temperature measurement occasions, such as pipelines, containers, equipment, etc.

2. Armored thermal resistor: The installation of armored thermal resistor is relatively complicated. You need to first fix the armor layer on the object to be measured, and then install the temperature sensing element inside the armor layer. This installation method is suitable for temperature measurement occasions under harsh environments such as high temperature, high pressure, and strong vibration.

III. Application field

1. Assembled thermal resistor: Assembled thermal resistor is widely used in temperature measurement in industrial production processes, such as petroleum, chemical, electric power, metallurgy and other industries. Due to its simple structure and convenient installation, assembled thermal resistor has good application effect in various temperature measurement occasions.

2. Armored thermal resistor: Armored thermal resistor is mainly used for temperature measurement in harsh environments such as high temperature, high pressure, and strong vibration, such as boilers, steam turbines, rocket engines, etc. Due to its high protection performance and measurement accuracy, armored thermal resistors have irreplaceable advantages in these special occasions.