A method for measuring pressure using a pressure measuring device
A pressure measuring device and pressure measuring technology, which is applied in the direction of measuring devices, measuring fluid pressure, testing of machine/structural components, etc., can solve problems such as pressure measurement safety and measurement accuracy are difficult to guarantee at the same time
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Embodiment 1
[0043] Such as figure 1 As shown, Embodiment 1 of the present invention provides a differential pressure sensor 10, which includes a first row of channel groups and a second row of channel groups, and the first row of channel groups includes n+1 a first channel, the second row channel group includes m+1 a second channel, where, n is the total number of pressure measuring points on the upper surface of the test model 30, m is the total number of pressure measuring points on the lower surface of the test model 30;
[0044] Each first channel includes a first reference terminal and a first measurement terminal, and each second channel includes a second reference terminal and a second measurement terminal.
[0045] figure 1 The solid circle in the figure represents the reference terminal, and the hollow circle represents the measurement terminal. In order to show the difference, the reference terminal and the measurement terminal in the first channel are called the first ref...
Embodiment 2
[0059] Such as Figure 4 As shown, Embodiment 2 of the present invention provides a pressure measurement method. The pressure measurement method uses a pressure measurement device for pressure measurement. The pressure measurement device includes a differential pressure sensor 10, an absolute pressure sensor 20, a test model 30, a main Three-way pipe 40, three-way pipe one 50, three-way pipe two 60, wherein:
[0060] The differential pressure sensor 10 includes a first row of channel groups and a second row of channel groups, and the first row of channel groups includes n+ 1 a first channel, the second row channel group includes m+1 a second channel, where, n is the total number of pressure measuring points on the upper surface of the test model 30, m Be the total number of pressure measuring points on the lower surface of the test model 30; each first passage includes a first reference end and a first measurement end, and each second passage includes a second reference en...
Embodiment 3
[0097] Such as Figure 5 As shown, Embodiment 3 of the present invention provides an elevation angle matching method. The elevation angle matching method uses the measuring device in Embodiment 1 to perform pressure measurement, which includes the following steps:
[0098] Step S10: Install the test model 30 in the icing wind tunnel, and keep the icing wind tunnel in a static state, and calibrate the differential pressure sensor 10;
[0099] Step S20: wind up to the target wind speed in the icing wind tunnel;
[0100] Step S30: After the wind speed in the icing wind tunnel is stabilized, adjust the test model 30 to the target elevation angle;
[0101] Step S40: Calculate the pressure of each measuring point on the test model 30;
[0102] Step S50: Compare the pressure of each measuring point on the test model 30 in step S40 with the reference pressure distribution, and determine the actual elevation angle of the test model 30 .
[0103] Steps S10 to S40 in Embodiment 3 of t...
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