Commonly used pressure sensors
There are several commonly used pressure sensors, including:
1. Resistance pressure sensor: This type of sensor converts pressure into a change in resistance value through a pressure-sensitive resistor to achieve measurement. Common models include MEMS resistive pressure sensors, NTC thermistor pressure sensors, etc.
2. Capacitive pressure sensor: This type of sensor achieves pressure measurement through changes in pressure-sensitive capacitance. Common models include thin-film capacitive pressure sensors, dielectric capacitive pressure sensors, etc.
3. Piezoelectric pressure sensor: This type of sensor utilizes the piezoelectric effect of piezoelectric crystals to achieve pressure measurement. Common models include quartz crystal piezoelectric pressure sensors, ceramic crystal piezoelectric pressure sensors, etc.
4. Strain gauge pressure sensor: This type of sensor measures the material strain caused by pressure through strain gauges to achieve pressure measurement. Common models include metal strain gauge pressure sensors, semiconductor strain gauge pressure sensors, etc.
5. Hall effect pressure sensor: This type of sensor uses the Hall effect to measure pressure. Common models include Hall element pressure sensors, Hall integrated circuit pressure sensors, etc.
6. Thermistor pressure sensor: This type of sensor measures pressure by changing the resistance of the thermistor with temperature. Common models include NTC thermistor pressure sensors, PTC thermistor pressure sensors, etc.
7. Fiber optic pressure sensor: This type of sensor achieves pressure measurement by measuring the impact of pressure on the transmission characteristics of optical fibers. Common models include fiber Bragg grating pressure sensors, fiber Fresnel reflection pressure sensors, etc.
8. Ultrasonic pressure sensor: This type of sensor achieves pressure measurement by measuring the propagation characteristics of ultrasonic waves in a medium. Common models include ultrasonic transmission pressure sensors, ultrasonic scattering pressure sensors, etc.
When choosing a pressure sensor, it is necessary to select the appropriate product based on the specific application environment and requirements.
