WRR-120 WRR-121 WRR-122 WRR-123 WRR-130 B thermocouples
WRR-120 WRR-121 WRR-122 WRR-123 WRR-130 B thermocouples, temperature is a physical quantity that characterizes the degree of hot and cold of an object, but temperature cannot be measured directly. It needs to be measured indirectly with the help of a certain physical parameter of another object that changes significantly with different temperatures.
For reliable temperature measurement, it is necessary to choose the right temperature sensor. The most recently we have been in contact with are thermopile sensors and pyroelectric sensors. A thermopile sensor is a component that can convert temperature difference and electrical energy into each other. It consists of two or more thermocouples connected in series. The thermoelectric potentials of each thermocouple are superimposed on each other. Generates current and can be used to measure small temperature differences or average temperatures.
When using a thermopile to measure temperature, the shortcomings of the potential difference generated by a single thermocouple are too small and difficult to measure, avoiding the use of expensive high-precision operational amplifiers.