Thermocouple temperature measurement method is _ instrument

Chongqing instrument co. , LTD. In the thermocouple has 17 years of production experience and the thermocouple, and chongqing instrument devoted to the thermocouple, thermocouple, such as research and development and manufacture of various kinds of temperature sensor. In this experiment we usually do this 2 kinds of metallic melts fast thermocouple calibration method and device. The device is mainly composed of a measured accidentally end can accommodate two quartz tube flat heating coil, two measured accidentally calibration of the same shape and thermocouple and the corresponding temperature control display output device. Verification method is to first use two calibration thermocouple find the two calibration in this flat heating coil accidentally thermoelectric potential of the same point, were I to replace one of the calibration accidentally, in the case of other conditions unchanged, after being checked my reading stability compared with the calibration accidentally readings can be accidentally quantities are accurate. A rapid temperature measuring thermocouple calibration method and the device. Its characteristics: a, the device is composed of a flat heating coil, a pair of calibration of thermocouple and display output of temperature control device. B and verification method is to first two calibration thermocouple from relative insert on both ends of the heating coil, the hot end of thermocouple, thermocouple location in the heating coil made by changing the calibration two calibration of the thermocouple thermoelectric power, the same measured fast thermocouple to replace one of the calibration of thermocouple, read the thermoelectric potential value of measurement under the steady state and compare the calibration thermocouple thermoelectric potential can be measured quickly the accuracy of the thermocouple. The temperature of the thermocouple is a kind of common measuring element, can directly measure the temperature and the temperature signals into a thermoelectric emfs, through electrical instrument ( Secondary instrument) Convert the temperature of the measured medium. Thermocouple temperature conditions of thermocouple is a temperature sensing element, is a kind of an instrument, thermocouple measuring temperature directly. Composed of two different composition material of the conductor closed loop, because material is different, different electron diffusion of electron density, stable equilibrium is produced after electric potential. When temperature gradient is at both ends, the loop will be current, produce thermoelectric emfs, the bigger the temperature difference, the greater the current will be. To know the temperature after the measured thermoelectric emfs. Thermocouple is, in fact, a kind of energy converter, can convert heat into electricity. Thermocouple wide technical advantage of thermocouple temperature measurement range, stable performance compare; High measurement accuracy, thermocouple direct contact with the object being measured, not affected by the intermediate medium; Thermal response time is fast, flexible thermocouple response to temperature changes; Wide measurement range, the thermocouple 40 ~ + 1600 ℃ can be continuous temperature measurement; Thermocouple performance is stable, good mechanical strength. Long use life, device for lunch. Thermocouples must be composed of two different nature but fit certain requirements of conductor ( Or a semiconductor) Material composition loop. Thermocouple measurement must have a temperature difference between side and reference. The two different information conductor or semiconductor welding, A and B constitute A closed loop. When the conductor A and B two persistent point temperature difference between 1 and 2, occurs between the electromotive force, therefore constitute the size of A current in the circuit, this kind of phenomenon called the thermoelectric effect. Thermocouple is using this effect to work.