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Optical self-alignment type quasi dynamic precision level measuring method based on liquid floating mirror surface

A liquid-floating and optical technology, applied in measuring devices, measuring inclination, mapping and navigation, etc., can solve the problem that the dynamic level measurement accuracy is difficult to reach below 10 arcseconds.

Inactive Publication Date: 2011-07-20
冯小勇
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Problems solved by technology

The measurement range is from a few degrees to tens of degrees, and the measurement accuracy is from tens of arc seconds to tens of arc minutes. At present, it is difficult for their dynamic horizontal measurement accuracy to be less than 10 arc seconds
[0008] It is difficult for these existing measurement methods to meet the special requirements of dynamic, real-time and precision at the same time

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  • Optical self-alignment type quasi dynamic precision level measuring method based on liquid floating mirror surface

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Embodiment Construction

[0024] The working method of this measurement method is: use the liquid floating reflective mirror to track the local geographic level as the absolute horizontal reference, use the optical self-collimating measuring light tube as the detection method for the change of the horizontal attitude of the object under inspection, and use the synchronization signal and control Under the control of the microcomputer, the real-time automatic and precise measurement of the horizontal attitude information of the object is realized.

[0025] The liquid-floating reflective mirror datum mainly uses the self-gravity self-leveling principle of the liquid to automatically track the local geographic horizontal plane and provide a reference datum for quasi-dynamic real-time precision level measurement. The optical self-alignment measuring tool mainly monitors the change of the included angle between the detection base surface of the detected object and the ground horizontal reference plane in real...

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Abstract

In order to realize dynamic, real-time and precise special measuring requirements under the environmental condition of a quasi dynamic state (between full static state and high dynamic state), the invention provides a system main body realizing method based on a liquid floating reflecting-type mirror surface reference and an optical self-alignment type measuring tool. By using the method, real-time, automatic and precise measurement on horizontal attitude information of an object is realized under the control of a synchronizing signal and a control microcomputer by taking the local geoid tracked by a liquid floating reflecting-type mirror surface as an absolute level basis reference and utilizing an optical self-alignment type measuring light tube as a detecting means for the change condition of the horizontal attitude of the detected object. The measuring method has the characteristics of distributed property, real-time property, precision and automation and can be used for measuring the horizontal attitudes of moving objects in the quasi dynamic state, the deformation of large structural members and the like.

Description

technical field [0001] This method is mainly applicable to the real-time precise measurement of the horizontal attitude change of the moving object by detecting the change of the surface of the object relative to the ground level under quasi-dynamic (between full static and high dynamic) environmental conditions. With support, it can be used for attitude change measurement of highly dynamic moving objects. Related technical fields mainly include: [0002] Optical self-aligning precision level measurement technology; [0003] Real-time precision measurement technology for horizontal attitude changes and structural deformation of large objects (such as anchored water ships, high-rise buildings, various bridges, rocket launch platforms, etc.); [0004] Inertial navigation equipment horizontal accuracy appraisal technology. Background technique [0005] The current level measurement methods mainly include: static environment level measurement and dynamic environment level mea...

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Application Information

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IPC IPC(8): G01C9/18
Inventor 冯小勇
Owner 冯小勇
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