[Chinese instrument network instrument research and development] With the concept of interconnection and artificial intelligence, the sensor as a basic discipline has also been rapidly developed. In the past month, a variety of new sensors have been developed. Now, follow Xiao Bian to find out!
　　 Austria has developed a new type of sensor that accurately measures electric field strength
The Vienna University of Technology in Vienna developed a new type of sensor that can accurately measure electric field strength. According to reports, the device has been able to accurately measure a weak electric field of less than 200 volts per meter.
The new sensor developed by Austria is based on microelectromechanical technology, uses passive MEMS components, and utilizes electrostatic induction to influence small silicon grid structures that are only a few microns in size. The main principle is to attach the silicon grid structure to a small spring. When the silicon block is exposed to an electric field, a force is applied to the silicon crystal, and the spring is slightly compressed or extended. This mechanical displacement can then be optically tracked by observing the changes in the LED beam passing through the structure.
In addition to measuring electric field strength, meteorology is another target area for new sensors. The sensor will help resolve some of the unresolved issues in lightning studies of local electric fields and can also be used to show the distance of high voltage transmission lines.
U.S. Develops New Flexible Band-Aid Sensor
Researchers at the United States Air Force Research Laboratory (AFRL) and Harvard University used 3D printers for the first time to print elastic sensors with integrated microelectronic components.
The R&D team used a 3D printer to generate a conductive, silver-containing thermoplastic polyurethane. The pick-and-place method was then used to place the microcontroller chip and LED lamp on a flexible substrate, which reduced the sensor to a band-aid size.
The Air Force envisions this new type of sensor to have a range of potential uses. The reduction of the sensor volume can save space and load, reduce the maintenance burden, thereby reducing maintenance costs and shortening the maintenance cycle.
China University of Science and Technology Successfully Developed a Single Spin Quantum Sensor for Searching for New Particles
Recently, the Key Laboratory of Micro Magnetic Resonance, Chinese Academy of Sciences, led by academician Du Jiangfeng of the University of Science and Technology of China, proposed and implemented a single-electron spin quantum sensor for searching for axicons, extending the power of search to the submicron scale.
Finding new particles outside the standard model of particle physics is crucial for exploring new physics. In this work, Du Jiangfeng's team proposed and implemented a new detection method that uses electron spins on the NV color center near the diamond as a sensor to search for electron-nucleon interactions in the range of less than 20 microns. Experiments have shown that the new sensor can explore a force range of 0.1 μm to 23 μm.
This new method can also be extended to other spin-related new interaction studies, thus providing possibilities for the use of single-spin quantum sensors to study new physics beyond the standard model, promising to stimulate cosmology, astrophysics and high-energy physics Wait for a wide range of basic science interests.
Transparent and stretchable self-actuated tactile sensor prepared by Nano Energy of Chinese Academy of Sciences
Recently, the Pan Caofeng research team of the Beijing Institute of Nano Energy and Systems, Chinese Academy of Sciences, developed a transparent and stretchable touch sensor based on the principle of friction nano-generators.
The researchers used electrospinning technology to prepare large-area PVA nanofiber films, followed by Ag nanofibers, which have excellent electrical conductivity and light transmission (1.68-11.1 Ω sq-1, light transmittance greater than 70%).
The method is simple to operate, low in cost, and easy to prepare on a large scale. At the same time, the device has features such as high transparency, high pressure sensitivity, stretchability, and multi-touch operation, which can achieve biomechanical energy collection, tactile perception and other functions.
Xiao Bian Comments: In February 2018, the direction of R&D of sensors was mainly toward new areas and lighter development. There has been great progress in the integration of sensor materials and other technologies. I believe in the future, sensors There will certainly be more room for development.
(Source: China Optical Journal Net, US “C4ISR and Networkâ€, Key Laboratory of Microscopic Magnetic Resonance, Chinese Academy of Sciences)
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