In order to get information from outside world,man must need the help of sense organ .But it is not enough for man to study natural phenomena and law as well as production activity through only man's sense organ. To adapt to this situation,we need sensors.so we can say that sensors are the extension of human facial features,also known as electronic features.
In the course of using information,what we must first solve is to obtain accurate and reliable information,however sensors are the main ways and means to obtain information of nature and production.
In the course of industrial production ,especially modern automated production process,various sensors are used to monitor and control all parameters of equipment in the production process and to make sure that all equipment are in the optimum or normal state and to achieve the best quality.Therefore ,without a large number of good sensors,the fundament of modern production would be lost.In the near future , I believe there will be a leap in sensor technology and it will achieve the status commensurate with its important new level. (可能有点小错误 没检查了 见谅)