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A mobile positioning device for particle image velocimetry

A particle image velocity measurement and mobile positioning technology, which is applied in the directions of measuring devices, fluid velocity measurement, velocity/acceleration/impact measurement, etc., can solve the problems of reducing the measurement efficiency of the PIV system, time-consuming and labor-intensive, and achieve good promotion and application prospects. Easy operation and high positioning accuracy

Inactive Publication Date: 2019-03-05
TSINGHUA UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

The above positioning work is time-consuming and labor-intensive, which greatly reduces the measurement efficiency of the PIV system

Method used

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  • A mobile positioning device for particle image velocimetry
  • A mobile positioning device for particle image velocimetry
  • A mobile positioning device for particle image velocimetry

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Embodiment Construction

[0022] The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

[0023] The present invention proposes a mobile positioning device for particle image velocimetry, which is used to install a laser and a PIV camera for particle image velocimetry, and is characterized in that the device includes a support frame, a lifting system, a mobile positioning platform, and a laser installation port 1. Camera installation platform; the lifting system is installed on the support frame and can move up and down in the vertical direction; the mobile positioning platform is installed on the lifting system, moves with the lifting system, and can move horizontally along the length direction; in the middle of the panel of the mobile positioning platform Set the hollow area as the laser installation port for installing the PIV laser sheet light source; the camera installation platform includes two groups, which are symmetrically arranged...

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Abstract

The invention relates to a moving positioning device for particle image velocimetry and belongs to the technical field of hydraulic measurement. The device is used for installing a laser and a PIV camera for particle image velocimetry. The device comprises a supporting frame, a lifting system, a moving positioning platform, a laser mounting port, and two camera mounting platforms; the lifting system is mounted on the supporting frame and moves in the vertical direction; the moving positioning platform is mounted on the lifting system, moves vertically along with the lifting system, and moves horizontally in the length direction; a hollow-out area set in the middle of a panel of the moving positioning platform is used as the laser mounting port and for mounting PIV laser sheet light source; the camera mounting platforms comprises two groups of camera mounting platforms which are arranged symmetrically at both sides of the moving positioning device and are used for supporting PIV cameras; the laser mounting port and the camera mounting platforms can move along with the moving positioning platform in a two-dimension movement mode to realize dual freeness moving positioning function. The device is convenient to operate, has high positioning precision and good application prospect.

Description

technical field [0001] The invention belongs to the technical field of water conservancy measurement, in particular to a mobile positioning device for particle image velocity measurement. Background technique [0002] Particle image velocimetry (PIV) technology, as a non-interference, transient, full flow field measurement method, has a high resolution and has great advantages in the study of turbulent pulsation characteristics and coherent structure. Applied in the field of water conservancy measurement. [0003] When using the PIV system for flow field measurement, after the measurement area is determined, a series of precise positioning work is required, mainly involving the positioning of the laser sheet light source (illuminating the tracer particles in the area to be measured) and camera positioning (making the measurement area The tracer particles are clearly imaged). Take the measurement of the two-dimensional flow field on the vertical and vertical plane of the op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P5/26
CPCG01P5/26
Inventor 段炎冲陈启刚曹列凯王兴奎
Owner TSINGHUA UNIV
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