Temperature sensor refers to a sensor that can sense temperature and convert it into a usable output signal. Temperature sensor is the core part of temperature measuring instruments and there are many varieties. According to the measurement method, it can be divided into two categories: contact type and non-contact type. According to the sensor material and electronic component characteristics, it can be divided into two categories: thermal resistor and thermocouple.

Rešitev vezja za zajem temperature PT100/PT1000

Kovinski toplotni upori, kot je nikelj, copper and platinum resistors have a positive correlation with the change in resistance with temperature. Platina ima najstabilnejše fizikalne in kemijske lastnosti in se najpogosteje uporablja. The temperature measurement range of the commonly used platinum resistor Pt100 is -200~850 ℃. Poleg tega, the temperature measurement ranges of Pt500, Pt1000, itd. se zaporedno zmanjšujejo. Pt1000, temperature measurement range -200~420 ℃. V skladu z mednarodnim standardom IEC751, temperaturne značilnosti platinastega upora Pt1000 izpolnjujejo naslednje zahteve:

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