Thermocouple measuring principle and unique release time: 2019 - 02 - Number 13 reading: zero

Thermocouple is the basic structure of hot electrode, insulation and protection tube; And display instrument and record instrument or computer systems. According to the environment in the field use, developed into a variety of factors such as measured medium is suitable for all kinds of thermocouple. Thermocouple is divided into simple fabricated thermocouple, armoured thermocouple and the special form of thermocouple; Segmentation by using environment with high temperature thermocouples, wear-resistant thermocouple, thermocouple, corrosion resistance to high pressure thermocouple, thermocouple, flame-proof aluminum liquid temperature with thermocouple, circulating fluidized bed with thermocouple, cement rotary kiln with thermocouple, anode baking furnace with thermocouples, high temperature hot blast stove with thermocouple, stove with thermocouples, with thermocouple carburizing furnace, high temperature salt bath furnace with thermocouple, copper, iron and steel with thermocouple, antioxidant tungsten-rhenium thermocouples, vacuum furnace with thermocouple, platinum, rhodium thermocouple, etc. Principle of measurement of the thermocouple is what? Thermocouple principle is based on the seebeck effect, the two different conductor on both ends of the composition of connected into a circuit, such as two different connection end temperature, then to produce the physical phenomenon of thermal current in the circuit. Thermocouple by two different conductors ( Hot electrode) , they are welded to each other, at the end of the form of thermocouple measuring side ( Also known as work side) 。 Insert it into the temperature of the medium under study; But on the other side of the thermocouple, Reference end or free end) Is connected to the display instrument. If with the reference of the measuring junction of the thermocouple temperature difference, the display instrument will point to the thermocouple thermoelectric emfs. Thermocouple technical advantages: 1. Wide range of thermocouple temperature measurement, and the stable performance compare; 2. High measurement accuracy, thermocouple direct contact with the object being measured, not affected by the intermediate medium; 3. Thermal response time is fast, flexible thermocouple response to temperature changes; 4. Wide measurement range, the thermocouple 40 ~ + 1600 ℃ can be continuous temperature measurement; 5. Thermocouple performance is stable, good mechanical strength; 6. Long use life, device for lunch;