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[ Focus on Chemical Machinery and Equipment Network ] Recently, Tomsk University of Technology and Tomsk State University have developed a method for evaluating the antioxidant activity of foods, bioactive food additives and medicinal wines-a miniature household sensor .
This type of sensor is a transparent polymer that changes color when it comes in contact with an antioxidant liquid.
It can help anyone determine the antioxidant use of food.
In addition, the sensor is compatible with modern analytical equipment, and daily measurement results can be rechecked in the laboratory many times.
Chemical machinery equipment network hotspots focus on chemical machinery equipment sensorsThis type of sensor is a transparent polymer that changes color when it comes in contact with an antioxidant liquid.
It can help anyone determine the antioxidant use of food.
In addition, the sensor is compatible with modern analytical equipment, and daily measurement results can be rechecked in the laboratory many times.
How much do you know about miniature sensors
How much do you know about miniature sensorsCompared with traditional sensors, miniature sensors have many new features.
They can make up for the shortcomings of traditional sensors, have a wide range of application prospects, and are getting more and more attention.
Now let the editor take you to understand the structure and principle of the micro sensor, as well as the basic performance characteristics of the micro sensor.
They can make up for the shortcomings of traditional sensors, have a wide range of application prospects, and are getting more and more attention.
Now let the editor take you to understand the structure and principle of the micro sensor, as well as the basic performance characteristics of the micro sensor.
The miniature sensor is not a simple physical reduction product of the traditional sensor, but a new generation of sensor device prepared by MEMS processing technology with a new working mechanism and physical and chemical effects, using materials compatible with standard semiconductor processes, and has the characteristics of miniaturization and integration.
, Which can improve the performance of the sensor.
The signal can be amplified before the signal is transmitted, thereby reducing interference and transmission noise, and improving the signal-to-noise ratio.
Integrating feedback circuits and compensation circuits on the chip can improve the linearity and frequency response characteristics of the output, reduce errors, and increase sensitivity.
Sensitive components, amplifying circuits and compensation circuits can be integrated on a chip.
Multiple identical sensitive components can be integrated on the same chip; it has good compatibility and is convenient for integration and packaging with microelectronic devices.
In addition, it is processed and manufactured by mature silicon micro-semiconductor technology, which can be mass-produced with very low cost.
, Which can improve the performance of the sensor.
The signal can be amplified before the signal is transmitted, thereby reducing interference and transmission noise, and improving the signal-to-noise ratio.
Integrating feedback circuits and compensation circuits on the chip can improve the linearity and frequency response characteristics of the output, reduce errors, and increase sensitivity.
Sensitive components, amplifying circuits and compensation circuits can be integrated on a chip.
Multiple identical sensitive components can be integrated on the same chip; it has good compatibility and is convenient for integration and packaging with microelectronic devices.
In addition, it is processed and manufactured by mature silicon micro-semiconductor technology, which can be mass-produced with very low cost.
The current direction of progress of miniature sensors is to gradually become intelligent, so that the sensor has self-diagnosis, self-calibration, and self-compensation functions, can realize the storage and memory of information, can complete multi-sensor multi-parameter mixed measurement and real-time processing of signal data, and Realize digital output.
The story of miniature sensors and AR glasses
The story of miniature sensors and AR glasses AR glasses have become a *noun.
Earlier, AdHawk exposed a motion tracking sensor made of microelectromechanical chips.
This miniature sensor can be used for eye tracking, but its power consumption and size are far smaller than current infrared camera solutions.
Eye tracking technology is the basis of viewpoint rendering technology, which can greatly improve the speed and efficiency of VR/AR content screen rendering, reduce the hardware requirements of this process, and make it possible to miniaturize VR and AR devices.
Earlier, AdHawk exposed a motion tracking sensor made of microelectromechanical chips.
This miniature sensor can be used for eye tracking, but its power consumption and size are far smaller than current infrared camera solutions.
Eye tracking technology is the basis of viewpoint rendering technology, which can greatly improve the speed and efficiency of VR/AR content screen rendering, reduce the hardware requirements of this process, and make it possible to miniaturize VR and AR devices.
In the field of eye tracking, the current mainstream solution is to use an infrared camera to capture the user's eye movements.
As the infrared camera is difficult to be small in size, related eye tracking kits are often made into lenses with thicker bezels or nested in front of the notebook.
Due to the high power consumption of the camera, this also means that the embedded device must have a large power supply, which often requires a wired connection to the device.
AdHawk uses micro-electromechanical technology to generate very tiny chips.
The miniature sensors made from these chips can be similar in size to a grain of sand and very small in size.
In terms of working principle, these miniature sensors can scan the user's eyeballs with a low-energy light at a scanning speed that is more than 10 times that of traditional infrared cameras.
The sensor measures the reflected light, and therefore outputs scientific-grade high-precision eye coordinates.
Thanks to MEMS technology, the power consumption of this miniature sensor is very low, and a button battery has enough power to support the sensor for a whole day.
As the infrared camera is difficult to be small in size, related eye tracking kits are often made into lenses with thicker bezels or nested in front of the notebook.
Due to the high power consumption of the camera, this also means that the embedded device must have a large power supply, which often requires a wired connection to the device.
AdHawk uses micro-electromechanical technology to generate very tiny chips.
The miniature sensors made from these chips can be similar in size to a grain of sand and very small in size.
In terms of working principle, these miniature sensors can scan the user's eyeballs with a low-energy light at a scanning speed that is more than 10 times that of traditional infrared cameras.
The sensor measures the reflected light, and therefore outputs scientific-grade high-precision eye coordinates.
Thanks to MEMS technology, the power consumption of this miniature sensor is very low, and a button battery has enough power to support the sensor for a whole day.
AdHawk's tiny sensors will undoubtedly promote the rapid maturity of eye tracking technology, which is also the key to viewpoint rendering technology.
When viewpoint rendering becomes possible, the display of VR and AR devices will be easier.
It is possible that a small and low-consumption processor can achieve all functions, so the volume of VR and AR devices can become smaller.
When viewpoint rendering becomes possible, the display of VR and AR devices will be easier.
It is possible that a small and low-consumption processor can achieve all functions, so the volume of VR and AR devices can become smaller.
The future development trend of miniature sensors
At present, the technology of miniature sensors is becoming more and more mature, and various miniature sensors that can sensitively and detect mechanical quantity, magnetic quantity, thermal quantity, chemical quantity and biomass can be made.
Due to the advantages of miniature sensors based on MEMS technology in reducing the cost of automotive electronic systems and improving their performance, they have begun to gradually replace sensors based on traditional electromechanical technology.
Due to the advantages of miniature sensors based on MEMS technology in reducing the cost of automotive electronic systems and improving their performance, they have begun to gradually replace sensors based on traditional electromechanical technology.
1.
Intelligentization of miniature sensors
Intelligentization of miniature sensors
At present, micro sensors tend to have self-diagnosis, self-calibration, and self-compensation functions, which can store and memorize information, complete multi-sensor multi-parameter mixed measurement and real-time processing of signal data, and realize digital output.
Smart miniature sensors can fundamentally change the single function of traditional sensors, and integrate the detection, analysis and digital processing of physical signals.
Not only the performance of the sensing system is improved, but also the design of the sensing system can be simplified, and the cost can be greatly reduced.
Nowadays, based on the preliminary intelligence of micro-sensors, people are using fuzzy theory and neural network technologies to try to achieve a higher form of micro-sensor intelligence—distributed networking.
Smart miniature sensors can fundamentally change the single function of traditional sensors, and integrate the detection, analysis and digital processing of physical signals.
Not only the performance of the sensing system is improved, but also the design of the sensing system can be simplified, and the cost can be greatly reduced.
Nowadays, based on the preliminary intelligence of micro-sensors, people are using fuzzy theory and neural network technologies to try to achieve a higher form of micro-sensor intelligence—distributed networking.
2.
Multifunctionalization of miniature sensors
Multifunctionalization of miniature sensors
With the help of different physical structures or chemical substances in the sensitive elements and their different characterization methods, a single sensor system is used to realize the functions of multiple sensors at the same time.
This is a new development direction of the current micro sensor technology.
The multi-functional miniature sensor can detect a variety of physical quantities.
For example, a miniature digital three-port sensor uses thermal, photosensitive, and magnetic components at the same time for assembly, so as to achieve the purpose of detecting multiple signals.
This assembly method can not only output analog signals, but also output Frequency signal and digital signal.
This is a new development direction of the current micro sensor technology.
The multi-functional miniature sensor can detect a variety of physical quantities.
For example, a miniature digital three-port sensor uses thermal, photosensitive, and magnetic components at the same time for assembly, so as to achieve the purpose of detecting multiple signals.
This assembly method can not only output analog signals, but also output Frequency signal and digital signal.
Multifunctional micro-sensors can comprehensively and accurately reflect objective objects in many application fields.
Research on it mostly focuses on various types of bionic sensors such as touch sensitivity, olfactory sensing, and audio-visual discrimination, such as artificial skin tactile sensors composed of PVDF materials, contactless skin sensitive systems, and rubber tactile sensors.
Research on it mostly focuses on various types of bionic sensors such as touch sensitivity, olfactory sensing, and audio-visual discrimination, such as artificial skin tactile sensors composed of PVDF materials, contactless skin sensitive systems, and rubber tactile sensors.
With the rapid development of the current technological level, the sensor system is progressing in the direction of miniaturization, intelligence, multi-function and networking.
In the future, the sensor system will become more miniaturized, integrated, multifunctional, intelligent and systematic.
Various emerging sciences and technologies have penetrated into today's society in a radial shape, and have further attracted widespread attention from all walks of life.
In the future, the sensor system will become more miniaturized, integrated, multifunctional, intelligent and systematic.
Various emerging sciences and technologies have penetrated into today's society in a radial shape, and have further attracted widespread attention from all walks of life.
Original title: Mini-sensor is booming, intelligent and multifunctional become the development direction
