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Machine vision synchronous focusing scanning type laser vibration measuring device

A machine vision measurement and machine vision technology, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of irregular surface morphology, poor adaptability, and low measurement efficiency, and achieve convenient operation, simple structure, and easy measurement and control effects

Active Publication Date: 2013-09-18
BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of low measurement efficiency and poor adaptability due to the irregular surface topography of the measurement object in the precision measurement of shock and vibration, and propose a machine vision synchronous focus scanning laser vibration measurement device

Method used

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  • Machine vision synchronous focusing scanning type laser vibration measuring device
  • Machine vision synchronous focusing scanning type laser vibration measuring device

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Embodiment 1

[0026] Machine vision synchronous focus scanning laser vibrometer device, applied to the precise measurement of vibration parameter field scanning of vibrating objects, such as figure 1 As shown, the measurement device is composed of a machine vision measurement module, a position calculation and control module, a scanning focus control module, a scanning laser vibrometer optical component, an interference signal demodulation module, and a control and information processing module. Among them, the scanning focus control module, scanning laser vibrometer optical components, and interference signal demodulation module constitute a scanning laser vibrometer system;

[0027] The machine vision measurement module is composed of a camera and a structured light lighting system, placed horizontally on both sides of the measuring light of the scanning laser vibration measurement system, and fixedly installed on the same substrate as the scanning laser vibration measurement system. The s...

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Abstract

The invention relates to a machine vision synchronous focusing scanning type laser vibration measuring device and belongs to the technical field of precision measurement of impact and vibration. The device is composed of a machine vision measuring unit, a position resolving and control unit, a scanning focusing control unit, a scanning laser vibration measurement optical assembly, an interference signal demodulation unit and a control and information processing unit. Synchronous focusing of the device is finished through the machine vision measuring unit to achieve correlation management of measured space coordinates and focusing information of the scanning type laser vibration measuring device. The machine vision synchronous focusing scanning type laser vibration measuring device is simple in structure and convenient to operate, facilitates measurement and control, can effectively improve impact and vibration measuring accuracy, achieves synchronous focusing through the machine vision measuring unit and improves scanning vibration measuring speed and accuracy.

Description

technical field [0001] The invention relates to a machine vision synchronous focusing and scanning laser vibration measuring device, which belongs to the technical field of precision measurement of shock and vibration parameter field scanning. Background technique [0002] Shock and vibration measurement plays a very important role in the construction of the national economy and the development and production of weapons and equipment, and has a universal demand in industrial production and testing. Scanning laser vibrometer, as an important measuring instrument in current full-field vibration test, has the advantages of good adaptability, high accuracy, and fast dynamic response. [0003] However, the scanning laser vibrometer is affected by the surface topography of the measured object in use. The scanning laser vibrometer needs to focus frequently during measurement. Due to the limitation of its focusing principle, the measurement period is too long, which makes the scanni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H9/00G01B11/24
Inventor 朱振宇张力李强李华丰梁志国李新良
Owner BEIJING CHANGCHENG INST OF METROLOGY & MEASUREMENT AVIATION IND CORP OF CHINA
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