In order to obtain information from the outside world, people must use sensory organs.
And by people's own sensory organs, in the study of natural phenomena and laws and production activities in their function is far from enough. In order to adapt to this situation, the sensor is required. So it can be said that the sensor is the extension of human facial features, also known as electrical features.
The advent of the technological revolution, the world began to enter the information age. In the process of using information, the first thing to be solved is to obtain accurate and reliable information, and the sensor is the main way and means to obtain information in the field of nature and production.
In modern industrial production, especially in the process of automated production, the use of a variety of sensors to monitor and control the production process parameters, so that the equipment in the normal state or the best state, and to achieve the best quality products. So it can be said that without many excellent sensors, modern production has lost its foundation.
In the basic discipline research, the sensor has the prominent position. The development of modern science and technology has entered many new fields: for example, in macroscopic observation of the vast universe of thousands of light-years, microscopic observation of the particle world of small to FM, longitudinal observation of the hundreds of thousands of-year-old celestial evolution, short to s instantaneous response. In addition, there are a variety of extreme technical studies, such as ultra-high temperature, low temperature, ultra-high pressure, ultra-high vacuum, super magnetic field, super weak magnetic field and so on, which have important effects on deepening material understanding, exploiting new energy and materials Obviously, there is no suitable sensor to obtain the information that a large number of human senses cannot obtain directly. The obstacle of many basic scientific research lies in the difficulty of acquiring the object information, and the emergence of some new mechanism and high sensitivity detection sensor often leads to the breakthrough in this field. The development of some sensors is often a pioneer in the development of some marginal disciplines.
Sensors have long penetrated areas such as industrial production, cosmic development, marine exploration, environmental protection, resource investigation, medical diagnostics, bioengineering, and even cultural relic protection. It is no exaggeration to say that from the vast space, to the vast ocean, and even a variety of complex engineering systems, almost every modern project, can not be separated from a variety of sensors.
Thus, the important role of sensor technology in developing economy and promoting social progress is very obvious. All countries in the world attach great importance to the development of this field. I believe that in the near future, sensor technology will be a leap forward to a new level commensurate with its important status.