The sensor is a detecting device that can sense the measured information and transform/convert the detected information into an electrical signal or other required form of information output as per certain the principles/rules to meet the information transmission, processing, storage and requirements for display, recording and control. It is the first crucial step in achieving automatic detection and automatic control. The general sensor consists of three parts: sensitive components, conversion components and measurement circuitry.
"In the next five years, the sales growth rate on average of the domestic sensor market will get up to 31%." Mr. Luo Baihui, the chief analyst of Jinmo (Gold Mold) Industrial Control Network, said that the major driving force for the rapid growth of local sensor demand is from industrial electronic equipment and automotive electronics, communication electronics, and consumer electronic and special electronic equipment, etc. Industrial electronics and automotive electronics are among the fastest growing industries in the electronic information industry, and are the areas where sensors are the most used, such as measuring various process variables, electronic and physical quantities, and traditional motion/positioning.
Although China's sensors have high market demand and rapid development, there are also problems such as low technical level, insufficient varieties of types/models, and poor research and development capabilities. At present, there are 1,688 enterprises engaged in the research, production and application of sensors in China, but there are only more than 50 MEMS development and production that are able to do so and the scale and application are small. The lack of sufficient scale application has led to the problem of low-tech but high-priced sensors in China, which has lost its advantages in the international market and made the market more competitive.
China's sensor industry is lagging behind. The demand on supply of locally made sensors, especially high-end ones are heavily dependent on imports. The gap of localization is huge. At present, sensor imports account for 80%, and sensor chip imports account for 90%. The demand for localization is super urgent. Mr. Luo Baihui pointed out: "At present, from the perspective of the entire gas sensor field, although the technology is stable, the threshold is very low. The future direction/trend can only be made towards high-accuracy ones." The development of the Internet of Things will tremendously advance the development of the sensor field. It will be greatly used in the fields of energy, intelligent sensing, security monitoring, and environmental protection. The development prospects and application fields of sensors are constantly expanding. Whether it is the automation industry or the construction of smart cities, including the development trend of the Internet of Things, it is showing people how brilliant the sensor industry will usher in.