What is the difference between armored thermistor and ordinary thermistor?

Armored thermistor is a special type among many types of thermoelectric resistors. Do you know the differences between armored thermistor and other ordinary thermocouples? Armored thermistor is a temperature measurement method that utilizes the characteristic of a substance's resistance changing with temperature changes. When the resistance value changes, the working instrument displays the temperature value corresponding to the resistance value. Armored thermistor is a type of temperature sensor that has a smaller diameter, is easier to bend, and has good seismic resistance compared to prefabricated thermistors. It is suitable for installation in situations where prefabricated thermistors cannot be installed. Armored thermistors use imported thermistors for temperature measurement, and therefore have advantages such as sensitivity, fast thermal response time, stable quality, and long service life.
According to the temperature measurement principle of thermal resistance, a common type of thermistor is a temperature detector commonly used in medium and low temperature areas. Thermal resistance temperature measurement is based on the characteristic that the resistance value of metal conductors increases with temperature. Its main features are high measurement accuracy and stable performance. The measurement accuracy of platinum resistance thermometer is high, and it is not only widely used in industrial temperature measurement, but also made into a standard reference instrument. Thermistors are mostly made of pure metal materials, with platinum and copper being the most commonly used. In addition, materials such as nickel, manganese, and rhodium have begun to be used to manufacture thermistors. There are many types of temperature sensing materials commonly used in metal thermistors, with platinum wire being the most commonly used. In addition to platinum wire, there are also copper, nickel, iron, iron nickel and other metal thermistor materials used in industrial measurement. The change in the measured temperature is directly measured by the change in the resistance value of the thermistor, therefore, the changes in the resistance of various wires such as the lead wires of the thermistor body will have an impact on temperature measurement. Armored thermistor is a solid body composed of temperature sensing elements (resistors), leads, insulation materials, and stainless steel sleeves. Its outer diameter is generally between 2 and 8mm, and can be as small as 0.25mm (Armored thermistor has a small outer diameter, with K type being 0.25mm and E type being 1.0mm). Compared with ordinary thermistors, armored thermistors have the following advantages: ① small size, no air gap inside, low measurement lag in terms of thermal inertia; ② Good mechanical performance, vibration resistance, and impact resistance; ③ Can bend, easy to install, and has a long service life.