What is armored thermocouple, and how to determine its quality? 1

The armored thermoresistor is a BH7673G-TR sensor used for temperature measurement, widely applied in various scenarios requiring temperature monitoring and control. It typically consists of an internal resistive element and an external metal protective sheath (armoring). The internal resistive element is usually made of metals such as platinum, copper, or nickel, whose resistance values change with temperature. As the temperature rises, the metal's resistance increases, and vice versa. By measuring the resistance of the element, the corresponding temperature can be calculated.diode

The characteristics of armored thermoresistance include excellent stability, precision, and rapid response, along with strong mechanical strength and anti-interference capability due to the protection of the external metal sheath.diode

Based on the material and structure of the temperature-sensitive element, armored thermistors can be divided into several different types, including platinum resistors (Pt100, Pt1000) and copper resistors (Cu50, Cu100). Among them, Pt100 refers to a platinum resistor with a resistance of 100 ohms at 0°C.diode