MLX90614 Infrared Temperature Measurement Module: Features and Benefits

The temperature measurement module used in this design is the MLX90614 series produced by Melexis. This module is a very convenient infrared temperature measurement device, and all modules are calibrated before leaving the factory, and can directly output linear or quasi-linear signals, with good interchangeability, eliminating the complicated calibration process. The module uses the 81101 thermoelectric component as the infrared sensing part. The output is the result of the interaction between the temperature of the measured object (TO) and the temperature of the sensor itself (Ta). Ideally, the output voltage of the thermoelectric component is 'dropping voltage', that is, when the temperature of the measured object and the temperature of the sensor itself are equal, the output voltage is 0V.