Application areas of pressure sensors
At present, pressure sensors are mainly used for control and monitoring in specific applications. In the automotive field, MEMS pressure sensors are mainly used to measure fuel pressure, tire pressure, airbag pressure, and pipeline pressure; in the biomedical field, MEMS pressure sensors are mainly used in diagnostic systems and detection systems; in the aerospace field, MEMS pressure The sensor is mainly used to control the attitude of the spacecraft and spacecraft; in the industrial field, the MEMS pressure sensor mainly requires the three indicators of accuracy, power consumption and reliability in the industrial field; in the consumer field, the MEMS sensor is in consumer electronics Applications in the field include motion/fall detection, navigation data compensation, games/human-machine interfaces, etc. The automotive industry is the most traditional and largest market for MEMS pressure sensors.
Application areas of pressure sensors
Pressure sensors are mainly used in: booster cylinders, boosters, gas-liquid booster cylinders, gas-liquid boosters, presses, compressors, air-conditioning refrigeration equipment and other fields.
1. Applied to hydraulic system
The pressure sensor is mainly used to complete the closed-loop control of the force in the hydraulic system. When the control spool moves suddenly, a peak pressure of several times the system working pressure will be formed in a very short time. In typical walking machinery and industrial hydraulics, if the extreme operating conditions are not considered in the design, any pressure sensor will be destroyed soon. Need to use shock-resistant pressure sensor, pressure sensor to achieve shock resistance, there are two main methods, one is to change the strain chip, the other method is external coil, generally the first method is used in the hydraulic system, mainly because Easy to install. Another reason is that the pressure sensor is also subject to uninterrupted pressure pulsations from the hydraulic pump.
2. Applied to safety control system
Pressure sensors are often used in safety control systems, and the main target area is the air compressor's own safety management system. There are many sensor applications in the field of safety control. As a very common sensor, pressure sensors are not surprisingly used in safety control systems.
The application in the field of safety control is generally considered from the aspect of performance, from the consideration of price, and from the safety convenience of actual operation, and the effect of selecting the pressure sensor is actually proved to be very good. The pressure sensor uses the processing technology of mechanical equipment to install some components and signal conditioners and other devices on a small chip. Therefore, the small size is also one of its advantages. In addition, the cheap price is another major advantage. To a certain extent, it can improve the accuracy of system testing. In the safety control system, the pressure brought by the compressor is controlled to a certain extent by installing a pressure sensor in the pipeline equipment of the air outlet. This is a certain protective measure and is also a very effective control system. When the compressor starts normally, if the pressure value does not reach the upper limit, then the controller will open the air inlet and adjust to make the device reach the maximum power.
3. Applied to injection molds
Pressure sensors play an important role in injection molds. The pressure sensor can be installed in the nozzle of the injection molding machine, the hot runner system, the cold runner system and the mold cavity of the mold. It can measure the plastic from the nozzle of the injection molding machine to the injection molding, filling, holding and cooling process. Plastic pressure somewhere between the mold cavities.
4. Applied to monitor mine pressure
As one of the key technologies for mine pressure monitoring. On the one hand, we should correctly use the existing sensors to serve the mining industry; on the other hand, as a sensor manufacturer, we must also develop and develop new pressure sensors to adapt to more mining industry applications. There are many kinds of pressure sensors, and based on the special environment of mine pressure monitoring, mine pressure sensors mainly include: vibrating wire pressure sensor, semiconductor piezoresistive pressure sensor, metal strain gauge pressure sensor, differential transformer type pressure sensor, etc. These sensors have a wide range of applications in the mining industry, and which sensor to use depends on the specific mining environment.
5. Applied to promote sleep
The pressure sensor itself cannot promote sleep. We just put the pressure sensor under the mattress. Because the pressure sensor has high sensitivity, when a person performs actions such as turning over, heartbeat and breathing, the sensor will analyze this series of information to infer sleep What is the state of the person sleeping, and then through the analysis of the sensor, collect the signal of the sensor to get sleep data such as heartbeat and breathing rhythm, and finally process all the data into a piece of music, of course, you can compress your one night’s sleep into one The first few minutes of music.