Temperature Sensor for Mobile DVR Truck Vehicle Temperature Transducer

   Temperature sensors are sensors that can sense the temperature and convert it into usable output signals. Temperature sensor is the core part of temperature measuring instrument. According to the measurement method can be divided into contact and non-contact two categories, according to the characteristics of sensor materials and electronic components into thermal resistance and thermocouple two categories.

   Temperature sensor is the earliest developed and most widely used sensor. The market share of temperature sensors greatly exceeds that of other sensors. From the beginning of the 17th century, people began to use temperature to make measurements. With the support of semiconductor technology, semiconductor thermocouple sensor, PN junction temperature sensor and integrated temperature sensor have been developed in this century. Accordingly, acoustic temperature sensors, infrared sensors and microwave sensors have been developed according to the interaction law between wave and matter.

     Temperature sensor is a variety of sensors in the most commonly used one, modern temperature sensor shape is very small, so that it is widely used in various fields of production practice, but also provides countless convenience and function for people's life. 

     There are four main types of temperature sensors: thermocouple, thermistor, resistance temperature detector (RTD) and IC temperature sensor. IC temperature sensor also includes analog output and digital output of two types.