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The development of automotive sensor technology presents three major trends 16:20, September 20, 2003 China Automotive News Automotive sensors as an important source of information for automotive electronic control systems, perform various information on temperature, pressure, position, speed, acceleration and vibration Real-time, accurate measurement and control. The key to measuring the level of modern limousine control systems is the number and level of sensors. At present, about a hundred sensors are installed on a domestic ordinary family car, and there are as many as 200 sensors on a luxury sedan. The overall development trend of automotive sensor technology in the future is miniaturization, multi-functionalization and intelligence. Micro-sensors use micro-machining technology to encapsulate micron-sized sensing elements, signal processors, and data processing devices on a single chip. Due to its small size, low price, and ease of integration, micro-sensors can significantly improve system test accuracy. At present, this technology has gradually matured, and various miniature sensors such as detection mechanical quantities, magnetic quantities, and thermal quantities can be produced. Multifunction means that a sensor can detect two or more characteristic parameters or chemical parameters, thereby reducing the number of automotive sensors and improving the reliability of the system. Intelligence is the combination of sensors and large-scale integrated circuits with intelligent functions. According to CCID Consulting's market research data, the global automotive sensor market in 2002 was US$7.01 billion, and it is expected to reach US$8.52 billion in 2005 with an average annual growth rate of 6.7%; the global market demand for automotive sensors in 2002 It was 1.038 billion and it is expected to reach 1.283 billion by 2005, with an average annual growth rate of 7.3%. Compared with the global sensor industry, domestic automotive sensors have not yet formed an independent industry and are still attached to automotive instrument companies. Since the 1980s, the domestic automotive instrument industry has introduced advanced foreign technology and its associated sensor production technology, which has basically met the supporting needs of domestic small-batch, low-level models. The use of new electronic products in many cars, light vehicles, and some trucks requires high-volume, high-level automotive sensors. However, the highest level of automotive sensor products in China is more than 10 years behind similar foreign products, and imports 500,000 each year. Set of high performance automotive sensors above. With the rapid growth of domestic automobile production, the demand for sensors and their associated transmitters and meters will also greatly increase in the domestic automobile industry in the next few years. It is imperative to realize the localization of automotive sensors. (Xinhua)