First, the rationale.
Miniature absolute pressure sensors are based on the piezoresistive effect, i.e. when pressure is applied to a sensitive membrane, a deformation occurs, which causes a change in the resistance value. This change is converted into an electrical signal, which is processed by the signal processing circuit and finally outputs the pressure value. Compared with traditional pressure sensors, miniature absolute pressure sensors use advanced micromachining technology and thin-film technology to achieve high accuracy, high reliability, and miniaturization.
2. Features. 1.Miniaturization: The miniature absolute pressure sensor is small in size and light in weight, easy to integrate into various devices, and also convenient to carry.
2.High precision: Due to the use of advanced micromachining technology and thin film technology, the miniature absolute pressure sensor has high accuracy and small error.
3.Good reliability: The miniature absolute pressure sensor has a long service life and stable performance, and can work normally under harsh environmental conditions.
4.Easy to maintain: The miniature absolute pressure sensor is simple in structure, easy to disassemble and replace, and easy to calibrate and maintain.
3. Application. 1.Industrial automation: Miniature absolute pressure sensors are widely used in the field of industrial automation, such as for the measurement and control of gas and liquid flow, level, temperature and other parameters.
2.Environmental monitoring: Miniature absolute pressure sensors can be used to monitor environmental parameters such as atmospheric pressure and cylinder pressure, as well as industrial exhaust emissions and environmental pollutant concentrations.
3.Medical instruments: Miniature absolute pressure sensors can be used in medical instruments, such as blood pressure monitors, ventilators and other equipment, to monitor patients' physiological parameters and provide accurate solutions.
4.Automotive: Miniature absolute pressure sensors can be used for automotive engine control, gas cylinder pressure monitoring, etc., to improve the safety and reliability of automobiles.
5.Aerospace: Miniature absolute pressure sensors are characterized by high accuracy and high reliability, and can be used in the aerospace field, such as pressure measurement and control systems for aircraft and satellites.
Fourth, the development trend.
1.Intelligent: With the development of artificial intelligence technology, miniature absolute pressure sensors will gradually become intelligent, capable of adaptive calibration, self-diagnosis, and automatic parameter adjustment and other functions.
2.Higher accuracy: In order to meet the demand for high-precision measurement in different fields, the accuracy of miniature absolute pressure sensors will continue to improve.
3.Versatility: In the future, miniature absolute pressure sensors will not only have pressure measurement functions, but will also integrate the functions of other sensors such as temperature, humidity, and flow rate, so that one machine can be multi-functional.
4.Wireless: In order to facilitate use and maintenance, the miniature absolute pressure sensor will gradually realize wireless connection, which can communicate with the host computer through Bluetooth, WiFi, etc.
5.Standardization: As the range of applications for miniature absolute pressure sensors continues to expand, standardization will become increasingly important. In the future, a more complete standard system will be formulated to standardize the design, production and use of products.