The global sensor market is showing rapid growth. The market report of the information company INTECHNO CONSULTING shows that the global sensor market capacity in 2008 was 50.6 billion US dollars, and the global sensor market is expected to reach more than 60 billion US dollars in 2010. Eastern Europe, Asia Pacific and Canada are the fastest growing regions in the sensor market, while the United States, Germany and Japan remain the largest countries in the sensor market. Worldwide, the fastest growing sensor market is still the automotive market. This article refers to the address: http:// “There is no modern car without sensor technology†has become the consensus in the industry, which means that the more advanced the electronic electronics, the higher the degree of automation, the greater the dependence on the sensor. In this regard, industry experts believe that the future of new automotive applications will give birth to new automotive sensors. The biggest feature of the sensor is the continuous introduction of new technologies to develop new functions. The overall development trend of automotive sensor technology in the future is miniaturization, multi-functionality and intelligence. World automotive sensor development trend According to the data, there are about dozens of sensors installed on an ordinary family car, and the number of sensors on a luxury car can be as many as 200. According to market research firm Strategy Analytics, sales of automotive sensors will reach $15.8 billion by 2012. Vehicle sensors are broadly classified into three categories: powertrains, safety management systems, and body comfort system sensors. Among them, the power system sensor market accounts for the largest proportion, reflecting the most advanced technology of automotive sensors. For example, the angular error of the accelerator pedal position sensor must be within 0.4%; the throttle position sensor requires extremely high reliability and must be able to operate from -50 to 150 degrees. Active power sensors are leading the way in power systems. Cam and crankshaft sensors are key to the powertrain because they are closely related to the car's "heart" engine. Active cam sensors and crankshaft sensors provide more protection for the powertrain and will lead the way in the future. It is estimated that in 2009, 58.2 million active crankshaft sensors will be put into use, while passive sensors will be reduced to 21.5 million. In the safety management system, the pressure sensor implements side airbag control. Automotive safety management systems are also an area where sensors are widely used. The control of the side airbag of the car has two schemes: an acceleration sensor and a pressure sensor. Authoritative data shows that compared with accelerometers, pressure sensors are nearly three times faster in detecting side impacts than accelerometers, and the probability of malfunction is smaller. In the body comfort system, the door, gearbox and passive safety make the car smarter. In the door module, the DC motor position sensor is used for the door handle and the window control, and the distributed door module structure is adopted and connected through the LIN bus. By using 2- or 3-axis angle/linear sensors, the gearbox can meet different gearbox position requirements and save costs. The specific sensor selection is determined by the function and design requirements of the car's gearbox. Passive safety devices include the detection of seat load, the monitoring of seat belt opening/closing, the detection of seat position adjustment (guaranteeing the effective protection of the airbag system), etc. The details of these controls are also very demanding for automotive sensors. Acceleration, vibration, and speed sensors are the three main sensors in automotive motion measurement, and have maintained steady and strong growth momentum. At present, there are more than 30 large companies producing these three sensors in the world, of which the top 5 companies account for 31.3% of the market. For example, Endevco accounted for 13.6%, Wilcoxa Research accounted for 9.1%, Motorola accounted for 4.2%, IMI accounted for 3.0%, and Analog Devices accounted for 1.4%. The increasingly strict requirements of emission regulations in western developed countries on exhaust emissions have promoted the development and production of oxygen sensors for automobiles. At present, practical automotive oxygen sensors include osmium oxide sensors and titanium dioxide oxygen sensors. It is worth mentioning that the miniaturized sensor uses micromachining technology to package micron-level sensitive components, signal conditioners, and data processing devices on a single chip. Due to its small size, low price, and easy integration, it can improve the system test accuracy. For example, by integrating the miniature pressure sensor and the miniature temperature sensor, and measuring the pressure and temperature, the pressure measurement can be eliminated by the on-chip operation. Temperature effect. A number of miniature sensors have been available, such as pressure sensors, accelerometers, and silicon accelerometers for collision avoidance. Embedding a miniature pressure sensor in the car's tires maintains proper inflation and avoids over- or under-inflation, saving fuel by 10%. The versatility allows the sensor to detect two or more characteristic parameters simultaneously. Smart sensors are equipped with dedicated computers, and their rapid development has raised the safety of cars to an unprecedented level. With the development of microelectronics technology and micromachining technology, sensors are developing towards miniaturization, multi-functionality and intelligence. Application diagram of sensor in car Semi-transparent Liquid Crystal Display Semi-Transparent Liquid Crystal Display,2.7Inch Translucent Liquid Crystal Display,Thin Translucent Liquid Crystal Lcd Display,Fast Response Lcd Display Dongguan Yijia Optoelectronics Co., Ltd. , https://www.everbestlcdlcms.com