In order to obtain information from the outside world, people must rely on sensory organs. However, relying on people’s own sensory organs alone is far from enough for their functions in the study of natural phenomena and laws and production activities. To accommodate this situation, sensors are needed. Therefore, it can be said that the sensor is an extension of human facial features, also known as electrical facial features.
With the advent of the new technology revolution, the world has entered the information age. In the process of using information, the first thing to solve is to obtain accurate and reliable information, and sensors are the main ways and means to obtain information in the natural and production fields.
In modern industrial production, especially in the automated production process, various sensors are used to monitor and control various parameters in the production process, so that the equipment can work in a normal or optimal state, and the product can achieve the best quality. Therefore, it can be said that without a large number of excellent sensors, modern production will lose its foundation.
In basic subject research, sensors play a more prominent role. The development of modern science and technology has entered many new fields: for example, it is necessary to observe the vast universe of thousands of light-years at the macro level, to observe the particle world as small as cm at the micro level, and to observe the evolution of celestial bodies that last hundreds of thousands of years vertically , an instantaneous response as short as s. In addition, various extreme technology researches, such as ultra-high temperature, ultra-low temperature, ultra-high pressure, ultra-high vacuum, ultra-strong magnetic field, ultra-weak magnetic field, etc., have appeared that play an important role in deepening the understanding of matter and developing new energy and new materials. Obviously, it is impossible to obtain a large amount of information that cannot be directly obtained by human sense organs without suitable sensors. The obstacle of many basic scientific researches at first just be that obtaining of object information has difficulties, and the appearance of some new mechanism and highly sensitive detecting sensor tends to cause the breakthrough in this field. The development of some sensors is often the pioneer of the development of some marginal subjects.
Sensors have already penetrated into a wide range of fields such as industrial production, space development, ocean exploration, environmental protection, resource investigation, medical diagnosis, bioengineering, and even cultural relic protection. It is no exaggeration to say that from the vast space, to the vast ocean, to various complex engineering systems, almost every modern project is inseparable from various sensors.
It can be seen that the important role of sensor technology in developing the economy and promoting social progress is very obvious. All countries in the world attach great importance to the development of this field. It is believed that in the near future, sensor technology will make a leap and reach a new level commensurate with its important status.
