Temperature is the physical quantity of the degree of heat and heat of the body. It can indirect measurement through some characteristics (such as resistance, voltage changes and other characteristics such as resistance, voltage changes) by objects. Change and have a good reproducibility and stability. The sensor made by using the physical characteristics of platinum is called a platinum resistor temperature sensor. The zero resistance value of the platinum resistor temperature sensor is 100Ω, and the resistance change rate is 0.3851 Q/℃. Platinum resistance temperature sensor is high, good stability, and wide range of temperature. It is the most commonly used temperature detector in low temperature zone (-200 ~ 650 ° C). Standard thermometer (covering national and world -reference temperature) supply and calculation and calibration.

Platinum resistance temperature coefficient TCR
According to IEC 751 international standards, temperature coefficient TCR = 0.003851, PT 100 (R. = 100Ω), PT 1000 (R = 1000Ω) are unified design platinum resistors. Among them, TCR = (R1OO-R) /(R × 100)