Device and method for stabilizing atmospheric pressure with gauge pressure sensor in wind tunnel
A gauge pressure sensor and atmospheric pressure technology, which is applied in the direction of measuring devices, machine/structural component testing, instruments, etc., can solve problems affecting the measurement results of gauge pressure sensors, etc., and achieve the effect of simple structure, reliable reference pressure, and fewer components
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Embodiment 1
[0013] A device for stabilizing atmospheric pressure with a wind tunnel gauge pressure sensor, which consists of: a box container 1, a set of pressure measuring pipe joints 2 are installed on one side of the box container, the pressure measuring pipe joints and the box A pipe head gasket 3 is installed between the body containers, and the upper part of the box container is provided with a charging and discharging hole 4, and the charging and discharging hole is matched with a sealing ring 5, and the upper part of the sealing ring is equipped with an electromagnetic switch valve 6 , the other side of the box container is equipped with a sealing plug 7, and a plug gasket 8 is installed between the sealing plug and the box container.
Embodiment 2
[0015] The device for stabilizing atmospheric pressure with a wind tunnel gauge pressure sensor according to Embodiment 1 is characterized in that: one side of the box container is provided with a set of pipe sockets 9, and the pipe sockets are connected with the pressure measuring tubes. The joint is matched, and the other side of the box container is provided with a plug socket 10, and the plug socket is matched with the sealing plug; the pressure measuring tube joint is connected with the pressure sensor 12 through the pressure measuring tube 11.
Embodiment 3
[0017] A method for stabilizing air pressure using the device for stabilizing atmospheric pressure in a wind tunnel gauge pressure sensor described in Embodiment 1 or 2. During use, the pressure sensor used in the wind tunnel test is connected to the pressure measuring pipe joint through the pressure measuring hose, and the pressure becomes The transmitter is placed inside the box container, and its cable is connected to the external equipment through the sealing plug on the right side; when the wind tunnel is not blowing, the electromagnetic switch valve is always open, and the external air can pass through the charging port on the top surface of the box container. The air release hole is exchanged with the air inside the box container. At this time, the pressure inside the box container is equal to the ambient atmospheric pressure; before the wind tunnel blowing test, the electromagnetic switch valve is closed, and the inside of the box container is a closed container, and the...
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