The hottest sensor technology must be transformed

2022-10-23
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Sensor technology must transform and break through

recently, the Royal Swedish Academy of Sciences announced that Boyle and Smith shared the 2009 Nobel Prize in physics with Kao Kun for the invention of CCD image sensor. CCD image sensors have been widely used in digital cameras, cameras, scanners, industrial fields and medical equipment, with an annual shipment of more than 100 million. However, with the large-scale growth of the photographic market, the shipment of CMOS image sensors that began to appear in the 1980s surpassed that of CCD in 2004, and began to gradually develop into traditional CCD application markets such as plastic polymer digital cameras that meet certain requirements

this change in the field of image sensors is only a microcosm of the changes in sensor technology. The biggest feature of sensor technology is the continuous introduction of new multidisciplinary technologies to develop new functions. Now, with the rapid development of electronics, MEMS (micro electro mechanical system), biotechnology, physics, chemistry, optics and other technologies, as well as the deepening of human understanding of natural changes, sensor technology has entered a critical stage of breakthrough from tradition to new type. It is expected that the development of sensor technology in the future will show miniaturization, digitization, multifunction Intelligence and networking

now, MEMS devices such as 3D sensors and accelerometers are expanding rapidly in emerging applications, including, game consoles, toys, GPS, notebook computers, hard disks, etc; Therefore, medical electronics will connect the strain gauge to the neutron of the measuring circuit, especially the portable medical electronics market will also have a huge demand for various new sensors. And the largest application market of sensors - Automobile - is also showing an increasingly obvious trend of electronization and intelligence. In the automotive power system, the cam is often inseparable from the electrical environment and crankshaft sensor when using household appliances. Because it is closely related to the "heart" engine of the automobile, it has become the key of the power system; In the safety management system, the pressure sensor realizes the control of the side airbag; In the door module, the DC motor position sensor is used on the door handle and window control; The transmission adopts 2-axis or 3-axis angle/linear sensor; Passive safety devices include the detection of seat load-bearing, the monitoring of safety belt opening/fastening, the detection of seat position adjustment (to ensure the effective protection of airbag system), etc

in addition, experts predict that sensor networks will become the third wave of information industry after computers and communication networks. Some research institutions predict that by 2020, the ratio of the Internet of things business to the existing Renren Internet business will reach 30:1, and the Internet of things will become the next trillion level information industry

the development trend of miniaturization, digitalization, multifunction, intelligence and networking of sensors also puts forward higher requirements for the manufacturing process and materials of sensors. Magnetic, gas, force, thermal, photoelectric, laser and other sensors came into being. The materials of sensors have also developed from metals to semiconductors, ceramics, optical fibers and other materials. Miniaturization, intelligence, non-contact measurement and MEMS sensing technology will gradually replace the traditional mechanical, strain gauge, sliding potentiometer and other sensing technologies. In the future, the key competition of major sensor manufacturers in the market will be to improve the technical content of sensors, expand the application scope of sensors, reduce production costs, promote new technological revolution and promote the development of sensor industry

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