A three-dimensional cross-interface measurement system

Abstract

The present invention provides a three-dimensional cross-interface measurement system, including a signal generator, a circular track, a transparent cylinder liner, a bracket, and more than two imaging structural parts, wherein the imaging structural parts include a camera and multiple lens assemblies; The present invention realizes the cross-interface propagation of optical signals, such as flame signals, by arranging transparent cylinder sleeves outside the optical signal generator, arranging multiple lens assemblies on a circular track, and propagating optical signals from the lens assemblies to the camera, thereby obtaining optical The two-dimensional projection of the signal in different observation directions; therefore, the present invention replaces the transparent window of the optical engine by a transparent cylinder liner, which refracts the internal optical signal, and can simulate the optical path propagation path of the optical signal in the optical engine, and then It can simulate the refraction of the internal signal of the optical engine when passing through the inner and outer walls of the transparent window during the outward transmission process, and provides an experimental method for solving the problem of cross-interface measurement.

Description

technical field [0001] The invention belongs to the field of optical measurement, in particular to a three-dimensional cross-interface measurement system. Background technique [0002] With the rapid development of high-speed cameras, lasers, and numerical algorithms, three-dimensional optical diagnosis with temporal and spatial resolution capabilities has become possible. [0003] Currently, optical measurement technology is widely used in flow and combustion fields. Currently commonly used research methods such as tomographic PIV method, laser-induced fluorescence method, phase Doppler method, etc. are inseparable from the signal acquisition of the research area by the imaging sensor, but the current research is basically aimed at the research of the open area, but In practice, some combustion processes occur in a confined space, for example, the spray and combustion process of an internal combustion engine occurs inside the cylinder, and it is difficult for ordinary sens...

AI Technical Summary

Problems solved by technology

Under this condition, due to the existence of quartz glass, the light will be continuously refracted on the inner and outer walls of the glass, resulting in projection distortion, which brings great challenges to the analysis of flow or combustion in the cylinder

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