An overview of temperature sensors

Abstract

Temperature has been one of the key parameters used in almost every field. The evolution of temperature sensor is highly appreciated by industrial process control, automotive industry, aerospace, well logging, power generation, etc. In other words, it can be said that measuring high temperature is now one of the key enabling technologies of the current century. Development in temperature sensor technologies not only allows increases in accuracy, control, efficiency, and reliability in safety-critical systems operating in harsh environments in many applications but also decrease the causality ratio in human–machine interface. The change in trend occurs with the evolution of CMOS which puts the storm in the field of electronics where a large circuit can be supposed to work at very low power supply. The present paper reviews the various technologies available to measure temperature.