Pressure measuring device for porous probe

Abstract

The invention relates to the technical field of porous probes, and discloses a pressure measuring device for a porous probe. The pressure measuring device comprises a porous probe and a pressure measuring cavity, wherein the left side of the porous probe is provided with a main pressure hole, the outer side wall of the porous probe is provided with a plurality of symmetrically arranged pressure measuring holes, the porous probe is embedded in the pressure measuring cavity, fastening bolts are in threaded connection with the two sides of the outer surface of the pressure measuring cavity, the ends, close to each other, of the two fastening bolts penetrate through the side wall of the pressure measuring cavity and make contact with the outer side wall of the porous probe, the right end of the outer side wall of the porous probe is fixedly sleeved with a sleeve plate, a supporting rod is fixedly arranged at the bottom of the sleeve plate, a supporting plate is fixedly arranged at the bottom of the supporting rod, and the upper and lower ends of the left side of the pressure measuring cavity are fixedly sleeved with pressure measuring pipes. According to the pressure measuring device for the porous probe, a plurality of pressure measuring holes can be connected through one air pipe, so that the pressure of each pressure measuring hole can be measured independently.

Description

technical field [0001] The invention relates to the technical field of porous probes, in particular to a pressure measuring device for porous probes. Background technique [0002] The multi-hole probe is a device used to measure the airflow direction at a certain point in the flow field in fluid mechanics. It works based on the principle of pressure induction and is widely used in the measurement of gas pressure in various industries. [0003] Among them, the patent number is CN106768605B, which discloses a pressure measuring device of a porous probe, which includes a handle, a pressure delivery port of a side hole, a nut, a screw, an upper positioning mount, a lower positioning mount, an outer cylinder, and a pressure of the total pressure delivery port. The present invention is a pressure measuring device of a porous probe, which is suitable for the pressure transmission of the porous probe of the aviation atmospheric data system on the ground. Its own shape features are...

AI Technical Summary

Problems solved by technology

[0006] Aiming at the deficiencies of the prior art, the present invention provides a pressure measuring device for a porous probe which can connect the pressure measuring hole of the porous probe with an external gas supply device through a trachea, and can be used for measuring the pressure measuring hole. When the pressure is working, different pressure measuring holes can be used for independent pressure measuring. The connection between the trachea and the air supply equipment for many times is a relatively cumbersome problem

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