In modern industrial production especially in the process of automatic production, to use a variety of sensors to monitor and control the various parameters in the production process, make the equipment work in the normal state or the best state, and make the product to achieve the best quality. The Chinese sensor market has been growing continuously in recent years, with a growth rate of more than 15%. In 2012, the four major fields of sensor application in China were industrial control, automotive electronics, communication electronics and consumer electronics.

With the coming of the information age, the sensor has become the main way and means for people to obtain the information in the natural and production fields. In modern industrial production especially in the process of automatic production, to use a variety of sensors to monitor and control the various parameters in the production process, make the equipment work in the normal state or the best state, and make the product to achieve the best quality; In the basic subject research, sensor has more prominent position.

Nowadays, sensors have penetrated into a wide range of fields such as industrial production, space exploitation, ocean exploration, environmental protection, resource investigation, medical diagnosis, biological engineering, and even cultural relics protection. It is obvious that sensor technology plays an important role in developing economy and promoting social progress. Statistics show that the annual revenue of the global smart sensor market will grow at an annual rate of 10 percent to reach $6.9 billion by 2018. There are currently 65 million sensor devices with processors in them, and that number will reach 2.8 trillion by 2019.

Sensor is the basic product in the electronic information equipment manufacturing industry. It is the special component in the new electronic components. Sensor industry is recognized as a high technology industry with development prospects at home and abroad, with its high technology content, good economic benefits, strong penetration ability, broad market prospects and other characteristics for the world. Driven by the booming electronic information industry market, the sensors in our country have formed a certain industrial base, and have made great progress in technological innovation, independent research and development, transformation of achievements and competitiveness, and made significant contributions to the development of national economy.

The Chinese sensor market has been growing continuously in recent years, with a growth rate of more than 15 percent. In 2012, the four major fields of sensor application in China were industrial control, automotive electronics, communication electronics and consumer electronics, among which industrial and automotive electronics accounted for about 42 percent of the market share. From January to March 2012, driven by the development of the Internet of Things industry, the scale of the sensor market in China reached 17.21 billion yuan, with a year-on-year growth of 23.3. According to the National Bureau of Statistics, from January to March 2012, a total of 1.17 billion sensors of various types were produced in China, up 13.7 percent year on year. Import and export, according to the data of the General Administration of Customs, to March 2012, the import volume increased by about 40; The export situation is less optimistic. The slowdown in export growth is reflected in almost all export markets (except South Korea). The decline in exports to Europe is particularly marked, with exports to the European Union growing at the lowest rate.

Review the development of sensitive components and sensor industry in our country, although rapid, but there are some shortcomings, such as the low level of product technology, weak industrial base, lack of product categories, weak research and development ability of enterprises. Therefore, the state is developing policies that are conducive to the development of the sensor industry. In addition, the continuous emergence of emerging technologies has also become a positive factor for the development of the sensor industry. With the development and application of new sensors applied in the Internet of Things, low carbon economy and other fields, the sensor industry will occupy a more important position in the electronic components industry, play a greater role.

In modern industrial production especially in the process of automatic production, to use a variety of sensors to monitor and control the various parameters in the production process, make the equipment work in the normal state or the best state, and make the product to achieve the best quality. Therefore, it can be said that without many good sensors, modern production will lose the foundation.

Sensors have important applications in many industries, and many industries are now trying to use sensors for automation in the open. At present, the most important application fields of sensors are mainly involved in four categories: mechanical manufacturing, medical equipment, automotive electronics industry, communication technology and other fields.

First, in machinery manufacturing, industrial applications of sensors, such as process control, industrial machinery and traditional; Various measurement process variables such as temperature, liquid level, pressure, flow rate, etc.; Measurement of electronic properties and physical quantities, as well as traditional proximity/positioning sensors are developing rapidly.

2. In terms of medical equipment, special equipment mainly includes professional electronic equipment applied in medical treatment, environmental protection, meteorological and other fields. Currently, the medical field is an emerging market with large sensor sales and considerable profits.

Three, automotive electronics industry, the key to the level of the electronic control system of modern senior cars is the number and level of the use of pressure sensors. At present, an ordinary family car is about to install dozens to hundreds of sensors, and the sensor parts to the direction of miniaturization, low cost and high reliability development.

Fourth, in the aspect of communication, the substantial growth of mobile phone production and the continuous increase of new mobile phone functions have brought opportunities and challenges to the sensor market. The rising market share of color screen mobile phones and camera mobile phones has increased the application proportion of sensors in this field. In addition, ultrasonic sensors for group phones and cordless phones, and magnetic field sensors for magnetic storage media will show strong growth