PPT0020AFN5VB

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Pressure Sensors - PPT0020AFN5VB

Pressure sensors are devices that measure the pressure of a process or environment. They consist of a specialized transducer that converts the pressure into an electrical signal, which then can be used for further computation or display. This article will discuss the application field and working principle of the Pressure Sensor PPT0020AFN5VB.

Application Field

The PPT0020AFN5VB is a general purpose pressure sensor mainly used in the measurement of relative air pressure. It is designed to measure the absolute pressure of a gas or air and is ideal for use in automotive, HVAC and building automation, aerospace, meteorological, process control and medical applications. The device features a 1.9μA high sensitivity and a low 0.5s response time, making it suitable for both dynamic and static measurements. Additionally, the sensor can be used in both wet and dry environments with its hermetic sealed construction providing excellent reliability in these hostile conditions.

Working Principle

The pressure sensor PPT0020AFN5VB operates on the principle of variable capacitance. A force is applied on a dielectric element inside the sensor when pressure is applied to the diaphragm. The resulting deflection changes the distance between two metal plates, resulting in a change of capacitance between the plates. This capacitance is then converted into an electrical voltage by means of an amplifier. The PPT0020AFN5VB has a high sensitivity of 1.9μA and on-board temperature compensation, which makes it suitable for wide range pressure monitoring and control applications.

Conclusion

The PPT0020AFN5VB is a pressure sensor designed for general purpose use in the measurement of relative air pressure. It is suitable for use in automotive, HVAC and building automation, aerospace, meteorological, process control and medical applications due to its high sensitivity and on-board temperature compensation. It operates on the principle of variable capacitance, where pressure is applied to the diaphragm, resulting in a change of capacitance between the plates which is then converted into an electrical voltage. The hermetic sealed construction provides excellent reliability in both wet and dry environments.

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