Platinum resistance is the abbreviation of platinum thermistor.
What is platinum thermistor? The degree of heat and cold of an object is often expressed by the physical quantity "temperature". The temperature is measured by means of a certain rule of the change of certain properties of a substance (such as volume, length, resistance, etc.) with temperature. Therefore, the temperature sensing element with metal platinum (PT) as the temperature sensing material is called platinum thermistor. With the change of temperature, the resistance value of platinum thermistor also changes regularly. The higher the temperature is, the greater the output resistance is. It has a good linear relationship and is very suitable for temperature measurement. It also has the advantages of large output signal, stable indication, high measurement accuracy and wide measurement range.
What is PT100, PT1000, PT500, PT200? In the production process of platinum resistance, certain industry standards have been formed. At 0 ℃, the platinum resistance with an output resistance of 100 Ω is called PT100. Similarly, the platinum resistance whose output is 1000 Ω at 0 ℃ is called PT1000, and other PTXXX platinum resistance are divided according to this rule. The most commonly used platinum resistors are PT100 and PT1000.