Particle image velocity measurement apparatus based on optical fiber image transmitting bundle

Abstract

The invention relates to a particle image velocity measurement apparatus based on optical fiber image transmitting bundle. A light beam emitted by a double pulse laser is shaped into a sheet-shaped light beam through a sheet light shaping system, and the light beam is irradiated onto a tracer particle in fluid. Scattered light of the tracer particle is collected by an imaging lens set, a particlepicture is formed and is transferred from one end of the optical fiber image bundle to the other end, and then is imaged in a CCD camera by using an image transmitting lens set. After processing of computer software, a running speed of the tracer particle and the fluid is obtained. A synchronous controller performs synchronous control over the double pulse laser and the CCD camera. According to the particle picture velocity measurement apparatus based on the optical fiber image bundle, the optical fiber image bundle and the image transmitting lens set are disposed in a conventional particle picture velocity measurement (PIV) apparatus, so that the problem that a conventional particle picture velocity measurement apparatus is limited by a camera used for image collection, and is hard to beused for fluid velocity measurement inside a complex spatial configuration or in an extreme environment (intense electromagnetic interference, high temperature, corrosion and the like); and application areas of the particle picture velocity measurement apparatus are extended.

Description

technical field [0001] The invention belongs to the technical field of optical fiber image transmission and particle image velocity measurement PIV, and relates to a particle image velocity measurement device based on an optical fiber image transmission bundle. Background technique [0002] The optical fiber image transmission bundle is to arrange a plurality of optical fibers with a certain length and a certain diameter in a regular manner. One-to-one correspondence, each optical fiber transmits a pixel, thus playing the role of image transmission. Optical fiber image transmission bundle is a passive device that can be bent arbitrarily to transmit images. Compared with traditional optical imaging devices, it has a large degree of freedom, light weight, and is easy to realize image transmission in complex spatial configurations. Interference, high temperature, corrosive environment and many other advantages, have been used in medicine, industry, scientific research and mili...

AI Technical Summary

Problems solved by technology

[0005] In order to avoid the deficiencies of the prior art, the present invention proposes a particle image velocimetry device based on an optical fiber image transmission beam, which is used to solve the problem that the traditional particle image velocimetry device is difficult to measure the velocity of fluids inside complex spatial configurations or in extreme environments , to expand the application field of the particle image velocimetry device

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