Horizontal reference device by adopting low-melting-point alloy and leveling method thereof

A level reference, low-melting point metal technology, applied in the direction of measuring devices, artificial horizontal planes, active optical measuring devices, etc., can solve the problems of high storage requirements, low safety, high requirements for testing equipment and personnel, and achieve convenient operation and security Horizontal accuracy, the effect of avoiding the leakage of metal solution

Pending Publication Date: 2019-10-11
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Problems solved by technology

[0007] In order to solve the technical problems of low safety of existing mercury level reference devices, high requirements for testing equipment and p

Method used

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  • Horizontal reference device by adopting low-melting-point alloy and leveling method thereof
  • Horizontal reference device by adopting low-melting-point alloy and leveling method thereof
  • Horizontal reference device by adopting low-melting-point alloy and leveling method thereof

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Embodiment Construction

[0056] The present invention will be further described below in conjunction with accompanying drawing.

[0057] Such as figure 1 , figure 2 , image 3 As shown, the horizontal reference device using low melting point alloy provided in this embodiment includes a horizontal reference platform 100, a low melting point metal alloy container 200, a rotary table 300, a rotary seat 400, a tripod leveling mechanism 500, and a dust cover 600 and temperature control system 700. The horizontal reference table 100, the low-melting-point metal alloy container 200, the rotating table 300, and the rotating seat 400 are arranged sequentially from inside to outside; the upper end.

[0058] Such as image 3 As shown, the horizontal reference platform 100 includes a leveling base 103 and a plane reflector 101; the leveling base 103 is a hollow cylindrical structure with an open top and a closed bottom, and a light hole is provided at the center of the closed end of the bottom; the plane re...

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Abstract

The invention provides a horizontal reference device by adopting a low-melting-point alloy and a leveling method thereof, aiming at solving the technical problems of lower safety, high requirements for testing equipment and personnel and high storage requirements of the existing mercury horizontal reference device. A floating liquid material utilized in the invention adopts a green and nontoxic environment-friendly low-melting-point alloy, and utilizes the principle that a low-melting-point alloy has the larger density and the larger buoyancy when in a liquid state to ensure that a surface ofa plane reflector floating on the low-melting-point alloy is parallel to a horizontal plane to determine a horizontal reference plane, thereby effectively overcoming the defect of safety of the mercury horizontal reference device in storage and use. In addition, the horizontal reference device by adopting the low-melting-point alloy and the leveling method thereof can simultaneously provide horizontal references in the vertical upward direction and the vertical downward direction, and are more convenient in practical use.

Description

technical field [0001] The invention belongs to the technical field of precision testing and measurement, and in particular relates to a horizontal reference device using a low melting point alloy and a leveling method thereof. Background technique [0002] In the field of precision test and measurement technology, an accurate absolute level reference is the prerequisite for calibration and measurement. The absolute level reference is provided by the level reference device, and the level reference directly affects system performance and technical indicators. Platform compass and inertial navigation platform are typical high-performance horizontal references, which are bulky and expensive, and are mostly used in special occasions. Another easy way is to use the natural horizontal plane of the liquid as a horizontal reference, that is, to use the laser beam to be vertically incident on the natural horizontal plane of the liquid, and when the laser beam returns from the origina...

Claims

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Application Information

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IPC IPC(8): G01C15/14G01C15/00G01C9/24
CPCG01C15/14G01C15/008G01C9/24
Inventor 贾森赵小东王先华
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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