Question 1

what is a static pressure sensor?

Accepted Answer

The static pressure sensor is based on atmospheric pressure or absolute vacuum, and compares the difference between the measured pressure and atmospheric pressure or absolute vacuum.

A static pressure sensor can be thought of as a specific form of differential pressure sensor. However, due to the measurement requirements, there will be large differences in the structure of the two.

In ventilation systems, static pressure is the pressure exerted by the air inside a building relative to the outside air pressure when the exhaust fan is turned on. Measuring and maintaining proper negative pressure allows ventilation systems to mix outside and inside air more efficiently.

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Question 2

what is dynamic pressure?

Accepted Answer

Dynamic pressure, when an object moves in a fluid, on the surface facing the direction of fluid motion, the fluid is completely blocked. The fluid velocity here is 0. Its kinetic energy is converted into pressure energy. The pressure increases. Its pressure is called total resistance pressure . Abbreviated as total pressure or total pressure, represented by P. The difference between it and the pressure at the undisturbed place (ie static pressure, represented by P static) is called dynamic pressure (represented by P dynamic)

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Question 3

what is duct static pressure sensor?

Accepted Answer

The duct static pressure sensor is a detection instrument that mainly detects the difference of wind pressure on both sides of the filter. Real-time data monitoring and measurement of gas positive pressure, negative pressure and differential pressure can be realized through the wind pressure sensor. Equipped with a pitot tube pressure device, it can realize the three-in-one detection of wind pressure, wind speed and air volume.

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Question 4

What is the difference between dynamic and static pressure transducer?

Accepted Answer

Diaphragm pressure sensors are based on the structure of the sensor. According to the sensing principle, diaphragm pressure sensors can be divided into different types such as piezoresistive, strain gauge, inductive, capacitive, and piezoelectric.

Among the above-mentioned pressure sensors with different principles, piezoelectric pressure sensors are only suitable for measuring dynamic pressure. Therefore, dynamic calibration is required;

Other dynamic and static pressures can be measured, and the most widely used is the quasi-static measurement with a very low frequency. Therefore, static calibration is the most widely used calibration form. When the measured pressure frequency band is wide, all kinds of pressure sensors should be calibrated for frequency response.

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标签： dynamic pressure

Static Pressure vs Dynamic Pressure vs Total Pressure