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Probe-based automatic airflow pressure and velocity measurement device

An automatic measurement and probe technology, which is applied in the direction of measuring fluid pressure, measuring devices, and measuring fluid pressure through electromagnetic components, can solve the problems of difficulty in knowing the direction of local airflow in advance and low efficiency, so as to reduce errors and increase experimental speed , The effect of simple device structure

Inactive Publication Date: 2011-09-21
XI AN JIAOTONG UNIV
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Problems solved by technology

Because in the actual test process, it is often necessary to measure the velocity and pressure of the airflow at different locations, and it is difficult to know the flow direction of the local airflow in advance, so it is very cumbersome to continuously adjust the position of the probe and the direction of the measurement hole using traditional manual methods work, and the efficiency is very low

Method used

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  • Probe-based automatic airflow pressure and velocity measurement device
  • Probe-based automatic airflow pressure and velocity measurement device
  • Probe-based automatic airflow pressure and velocity measurement device

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Experimental program
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Embodiment Construction

[0015] Such as figure 1 As shown, a measuring device for air pressure and velocity that controls the automatic movement of the probe includes four parts: the probe rotary motion adjustment mechanism, the probe linear motion adjustment mechanism, the installation support structure, and the data acquisition and control system.

[0016] The probe rotation movement adjustment mechanism includes a hollow motor 2, a hollow motor bracket 3 and a probe positioning and locking device, wherein the positioning and locking device consists of a positioning sleeve 8, a positioning lock nut 9, a screw 10, a gasket 11 and a jacking screw 12 composition. The positioning sleeve 8 is placed on the left side of the hollow shaft of the hollow motor 2 and is firmly connected with the inner wall of the hollow shaft and the probe 1 through interference fit, and the top screw 12 locks the connection between the positioning sleeve 8 and the probe 1 . The positioning lock nut 9, the gasket 11 and the r...

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Abstract

The invention discloses a probe-based automatic airflow pressure and velocity measurement device which comprises a probe, a probe rotating motion adjusting mechanism, a probe linear motion adjusting mechanism, a mounting support mechanism and a data acquisition and control system. The device is characterized in that one end of the probe is arranged in the hollow shaft of a hollow motor and fixed by virtue of a positioning / locking device, the other measuring end of the probe passes through a sealing device and then extends to a moving fluid in a measured object, and the sealing device is fixed in the through hole of a vertical bracket body of a movable platform bracket; the probe rotating motion adjusting mechanism is arranged on the movable platform by virtue of a hollow motor bracket; the probe linear motion adjusting mechanism is integrally arranged on a horizontal bracket body of the movable platform bracket; the data acquisition and control system is connected with the probe by virtue of a data acquisition terminal C so as to realize data acquisition; and the data acquisition and control system is connected with the hollow motor by virtue of a first wire connecting terminal D so as to realize rotating motion control, and connected with the linear motion motor by virtue of a second wire connecting terminal E so as to realize linear motion control.

Description

technical field [0001] The invention belongs to the technical field of flow measurement and relates to a device for automatically measuring airflow pressure and velocity based on a probe. Background technique [0002] Probes are widely used in the measurement of airflow movement parameters. According to different types of probes and their corresponding measurement methods, they can be used to measure the velocity vector, direction, total pressure and static pressure of airflow. In the process of using the probe to measure the above physical parameters, it is necessary to constantly change the position of the probe in the airflow and the direction of the measuring hole relative to the airflow, so as to realize the measurement of airflow velocity and pressure in different positions. Because in the actual test process, it is often necessary to measure the velocity and pressure of the airflow at different locations, and it is difficult to know the flow direction of the local air...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01P5/00G01P13/02G01L9/00
Inventor 袁民建毛义军祁大同谭佳健
Owner XI AN JIAOTONG UNIV
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