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Nano sensors put "smart eyes" on mobile phones
Release time:2022-11-30 Number of views:591
The size of sesame seeds costs 2 yuan
Su Bao (Tang Xiaowen) When you open the smartphone, you will find that there is an automatic screen rotation function. That is to say, when you use the phone, the screen will automatically flip with the phone horizontally or vertically, so as to facilitate the user experience, just like the phone has "eyes". The nano-sensor developed and produced by the Suzhou Industrial Park enterprise Mingyi Sensor Technology Co., Ltd. is the sensitive "smart eye" of mobile phones, which can "detect" the small changes in the position of mobile phones and then make corresponding response.
In 2011, Minglin Sensor Technology Co., Ltd. launched the first 3-axis acceleration sensor product in the field of MEMS sensors, which not only successfully implemented the miniaturization of acceleration sensors, but also broke the industrial monopoly of foreign manufacturers. In addition, the company has expanded its product direction to gyroscope, pressure sensor, magnetic sensor, etc., mainly applied to consumer electronics, automotive electronics and other industrial control fields by using the patented technology on MEMS design and manufacturing process independently developed.
Before the birth of nanoscale acceleration sensors, mobile phones also had relatively "primitive" sensing equipment. Wang Dawei, the general manager of Minghua Sensor Technology Co., Ltd., said: "Make a groove inside the mobile phone, place a small ball in the groove, and judge the position change of the mobile phone according to the rolling of the ball." Compared with this method, the nano-sensor has many advantages. The volume is only the size of sesame, the cost is only 2 yuan, and the accuracy is high. The most important thing is that because of the addition of the z-axis, the position detection becomes a true three-dimensional. After nearly five years of research and development in Ming Dynasty, this sensor has now carried out OEM cooperation with the largest foreign manufacturers, and each order is more than 100000.
Today, the acceleration sensor has become the standard configuration of smart phones. In Wang Dawei's view, in the future, a variety of sensors, including gyroscopes and pressure sensors, will be combined to finally achieve richer functions. The gyroscope, which is more complex than the acceleration sensor, is a sensor that can detect the angular acceleration. In this way, the mobile phone can "transform" the game handle, playing tennis and driving a car are not a problem. The pressure sensor can accurately locate the floor during GPS positioning by sensing the small air pressure changes, rather than just locate the road and building.
MEMS sensor is a new type of sensor manufactured by microelectronics and micromachining technology. It is small in size, light in weight, low in cost, low in power consumption, high in reliability, suitable for mass production, easy to integrate and realize intelligence. At the same time, it can also achieve some functions that cannot be achieved by traditional mechanical sensors. The application of MEMS sensors is not limited to mobile phones, computers, cars, navigation, even electric irons and sports equipment. For example, the navigator can judge whether it can follow the inertial track in the tunnel without satellite signals, the notebook computer can automatically open the hard disk protection program when it falls, and the electric iron can automatically cut off the power when it is flat at high temperature, etc. It is like the "eye" that is good at observation and discovery in life, and becomes our indispensable assistant.