Mercury horizontal reference apparatus

A horizontal reference and mercury technology, applied in the direction of artificial horizontal plane, etc., can solve the problems of unstable horizontal reference device, large cycle matching volume, and affecting measurement accuracy, and achieve the effect of simple installation, small size and good reliability

Active Publication Date: 2013-09-25
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0002] In the field of precision test and measurement technology, horizontal reference devices are widely used, and the used horizontal reference is one of the important factors affecting system performance and technical indicators. The instability of the reference device has an important impact on the measurement error, thereby affecting the measurement accuracy
[0003] The traditional horizontal reference is the platform compass and inertial navigation platform, but due to the need to use the stability of the gyro for period matching and long-term acceleration, it is bulky and expensive

Method used

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Embodiment Construction

[0026] In the present invention, a horizontal reference platform device including a plane reflector is placed on mercury, and by utilizing the property that mercury is liquid at room temperature and has a higher density and greater buoyancy, the plane reflector device floats on the surface of mercury, and after leveling, the plane reflection The normal of the mirror is parallel to the surface normal of the mercury liquid, so that the upper surface of the plane reflector is the datum plane of the horizontal datum. The task of the present invention is achieved by the following scheme: mercury plate 1, mercury 2, leveling base 3, flat reflector 4, flat glass 5, flat glass seat 6, shock-absorbing rubber pad 7, coarse adjustment base 8, Leveling blister 9, plate glass protective cover 10, pressure ring 11, coarse adjustment connecting seat 12, limit post 13, damping spring 14, screw 15, spring washer 16, leveling screws 31,32,33.

[0027] Specific methods include:

[0028] 1) Plac...

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Abstract

The invention provides a design method for horizontal reference and an apparatus thereof and enables designing and selecting of a horizontal reference platform to be realized and an unrealizable technical problem in background technology to be solved. According to the invention, the physical properties of mercury that mercury is in a liquid state at normal temperature and has a high density and a great buoyancy force are utilized, which enables the surface of a planar mirror floating on mercury to be parallel to a horizontal plane, thereby achieving the purpose of selecting a horizontal reference plane. The invention has the obvious advantages of high precision, high reliability, small volume, simple construction, convenient fabrication, installation and debugging, etc.

Description

technical field [0001] The invention relates to a level reference device, in particular to a mercury pan level reference device. Background technique [0002] In the field of precision test and measurement technology, horizontal reference devices are widely used, and the used horizontal reference is one of the important factors affecting system performance and technical indicators. The instability of the reference device has an important impact on the measurement error, thereby affecting the measurement accuracy. [0003] The traditional horizontal references are platform compass and inertial navigation platform, but they are bulky and expensive due to the need to use the stability of the gyroscope for period matching and long-term acceleration. Contents of the invention [0004] In order to solve the problems existing in the horizontal reference device in the background technology, a mercury plate horizontal reference device is proposed, which has the advantages of high ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01C15/14
Inventor 吴易明陆卫国李春艳
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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