With the development of automation and intelligence in measurement and control systems, traditional sensors can no longer meet certain data processing capabilities and the functions of self-inspection, self-calibration, and self-compensation. Smart sensors and The research and development and application of multi-functional sensors have already gone to the market.
The structure and characteristics of smart sensors
Sensors are like the five senses of a person, and they are an important tool for obtaining information. It plays a huge role in industrial production, national defense construction, and science and technology. But compared with the rapid development of computers, sensors as the "facial senses" are far behind the development speed of computers as the "brain".
With the development of automation and intelligence in the measurement and control system, sensors are required to have high accuracy, high reliability, good stability, and have certain data processing capabilities, and be able to self-check , Self-school, self-compensation. Traditional sensors can no longer meet this requirement.
In addition, in order to manufacture high-performance sensors, it is difficult to improve the material and technology alone. It is necessary to combine computer technology and sensor technology to make up for the lack of performance. The sensor technology has undergone tremendous changes. The combination of microprocessors (or microcomputers) and sensors produces powerful intelligent sensors. It is called Intelligentsensor (smart sensor) or Smartsensor (smart, smart, smart sensor) in foreign countries. In addition, traditional sensors generally can only measure one parameter, and in some occasions, a small multi-function sensor that measures multiple parameters at the same time is required. Scientists from many countries have paid attention to the development of this direction and have developed some multi-functional sensors.
