The thermocouple spot welding head is a kind of temperature sensing element, a kind of primary instrument, and the thermocouple directly measures the temperature. A closed loop composed of two conductors with different composition materials. Due to the different materials, different electron densities produce electron diffusion, and after a stable equilibrium, an electric potential is generated. When there is a gradient temperature at both ends, a current will be generated in the loop, and a thermoelectromotive force will be generated. The greater the temperature difference, the greater the current. After measuring the thermoelectromotive force, the temperature value can be known. A thermocouple is actually an energy converter that converts heat energy into electrical energy. The technical advantages of the thermocouple spot welding welding head: the thermocouple has a wide temperature measurement range and relatively stable performance; high measurement accuracy, the thermocouple is in direct contact with the measured object, and is not affected by the intermediate medium; The thermal response time is fast, and the thermocople responds flexibly to temperature change; the measuring range is large, and the thermocouple can continuously measure the temperature from-40 to +1600℃; the thermocouple had reliable performance and good mechanical strength. Long service life and convenien installation.
2024