Several commonly used temperature sensors

Thermocouple temperature sensor: 

A sensor that operates based on the principle of thermoelectric effect. When the temperature changes, an electromotive force is generated in a circuit composed of two different metals to measure the temperature. It is one of the most commonly used temperature sensors, suitable for a wide temperature range and various atmospheric environments, with advantages such as durability and low cost. Commonly used ones include K-type thermocouples.

Thermistor temperature sensor: 

A sensor in which the electrical resistivity of a semiconductor material changes with temperature. There are mainly two types of thermistors: positive temperature coefficient (PTC) and negative temperature coefficient (NTC). It has high sensitivity and fast response speed, but poor linearity. Commonly used in application scenarios that require fast response and small size.

Resistance Temperature Detector (RTD):

 A temperature sensor with a built-in metal probe whose resistance increases or decreases with increasing temperature. It is one of the most accurate and stable temperature sensors, but its response speed is slow and its price is relatively expensive. Common materials include platinum, copper, or nickel.

IC temperature sensor: 

also known as integrated circuit temperature sensor, a single-chip integrated circuit made using silicon semiconductor integration technology. It can more accurately detect analog signals such as voltage, pressure, light, and temperature in the real world, and is more stable and reliable than traditional mechanical devices. There are two common forms of output: analog output and digital output.