Gravity-eliminating three-dimensional adjusting bracket for off-axis parabolic mirror for schlieren apparatus

An off-axis parabolic mirror, three-dimensional adjustment technology, applied in the direction of instruments, aerodynamic tests, measuring devices, etc., to achieve the effect of improving image quality, improving imaging quality, and simple structure

Pending Publication Date: 2019-08-30
INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1. The busbar and optical axis of the off-axis parabolic mirror must be on the same horizontal plane, so the off-axis parabolic mirror bracket must have a roll function

Method used

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  • Gravity-eliminating three-dimensional adjusting bracket for off-axis parabolic mirror for schlieren apparatus
  • Gravity-eliminating three-dimensional adjusting bracket for off-axis parabolic mirror for schlieren apparatus
  • Gravity-eliminating three-dimensional adjusting bracket for off-axis parabolic mirror for schlieren apparatus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Such as Figure 1-3 An off-axis parabolic mirror anti-gravity three-dimensional adjustment bracket for a schlieren instrument of the present invention includes:

[0044] Base 1, on which a U-shaped support arm 2 is placed; a rotating curved arm 3, which is connected to the U-shaped support arm 2; The pitch adjustment mechanism 4 for pitch adjustment; the rotating mirror frame 5, which is connected to the rotating curved arm 3 through a rotating connecting plate 51; a roll adjustment mechanism 6 is arranged between the rotating mirror frame 5 and the rotating curved arm 3; An off-axis parabolic mirror 7 is connected to the rotating mirror frame 5; a yaw adjustment mechanism 8 for yaw adjustment of the off-axis parabolic mirror is arranged in the base 1; and the yaw adjustment mechanism 8 and the U-shaped support arm 2 connect. In this technical solution, when debugging in a certain direction is required, the pitch adjustment mechanism 4 can be adjusted to control the p...

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PUM

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Abstract

The invention discloses a gravity-eliminating three-dimensional adjusting bracket for an off-axis parabolic mirror for a schlieren apparatus. The three-dimensional adjusting bracket comprises a base,a rotating bent arm, a rotating frame and a yaw adjusting mechanism, wherein a U-shaped supporting arm is arranged on the base; the rotating bent arm is connected to the U-shaped supporting arm; a pitching adjusting mechanism used for pitching adjustment of the off-axis parabolic mirror is arranged between the rotating bent arm and the U-shaped supporting arm; the rotating frame is connected to the rotating bent arm through a rotating connecting plate; a rolling adjusting mechanism is arranged between the rotating frame and the rotating bent arm; the off-axis parabolic mirror is connected to the rotating frame; and the yaw adjusting mechanism is used for yaw adjustment of the off-axis parabolic mirror, is arranged in the base and is connected to the U-shaped supporting arm. The gravity-eliminating three-dimensional adjusting bracket for the off-axis parabolic mirror for the schlieren apparatus has the advantages of being simple in structure, high in adjusting precision, capable of effectively reducing gravity influence and high in schlieren imaging quality.

Description

technical field [0001] The invention relates to the field of fluid mechanics measurement, in particular to an off-axis parabolic mirror anti-gravity three-dimensional adjustment bracket for a schlieren instrument used for observing airflow boundary layers and flow fields. Background technique [0002] In experiments related to fluid mechanics, the schlieren instrument has a very wide range of applications, and it can be used to observe the boundary layer of the airflow, combustion, shock waves, cold and heat convection in the gas, and the flow field of the wind tunnel or water tunnel. [0003] During the use of the schlieren instrument, the image quality of the schlieren instrument is not only affected by the external environment, but also the performance of the components of the device itself has a great influence on the final measurement results. Among them, the schlieren primary mirror system is a large Interfering factors. Usually, the main mirror in the system mostly a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/06
CPCG01M9/06
Inventor 陈海峰张胜徐来武任国柱刘义熊波阎成丁寿和吕鹏庞旭东顾海涛马列波唐子奇汪路路郭涛
Owner INST OF HIGH SPEED AERODYNAMICS OF CHINA AERODYNAMICS RES & DEV CENT
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