Temperature sensor ON PCB

PCB temperature measurement typically involves three different steps: Place a ground plane between the temperature sensors and the heat source. Connect the GND pins of each temperature sensor to the heat source's ground plane. Make sure the temperature sensors and the heat source remain close to each other on the PCB.A sensor is a device that detects the change in the environment and responds to some output on the other system. A sensor converts a physical phenomenon into a measurable analog voltage (or sometimes a digital signal) converted into a human-readable display or transmitted for reading or further processing.