An on-site calibration device for a vertical line coordinate instrument

Abstract

The invention provides the site calibration device of a vertical line coordinatograph. The site calibration device comprises a linear slide table mechanism, a vernier caliper mechanism, a measuring rod mechanism and a rotary leveling fixing pedestal. By using the device of the invention, the site calibration of the two measuring axes of the vertical line coordinatograph can be completed through one-step installation without disassembling an original vertical line coordinatograph, and the horizontality of the XY plane of the vertical line coordinatograph and whether the XY axis of the verticalline coordinatograph is orthogonal can be detected simultaneously so as to ensure the accuracy of calibration data. Through abandoning the vertical line of the vertical line coordinatograph and adopting the measuring rod mechanism, work efficiency can be increased.

Description

technical field [0001] The present application relates to the technical field of civil engineering monitoring, in particular to an on-site calibration device for a vertical coordinate instrument. Background technique [0002] The vertical line coordinate instrument is a high-precision new intelligent instrument for vertical line observation. It can realize two-way horizontal displacement automatic measurement through vertical or inverted devices. It is often used for the safety of hydropower dams, high-rise buildings, bridges, and nuclear power plants. Deformation measurements of shells. Perpendicular coordinate instruments are divided into capacitive type and photoelectric type according to different working principles; among them, the photoelectric type (CCD) vertical line coordinate instrument is mainly used at present. [0003] The photoelectric (CCD) vertical line coordinate instrument is a non-contact automatic displacement measurement device realized by CCD devices, ...

AI Technical Summary

Problems solved by technology

However, a slight force on the vertical line under the action of the plumb bob will produce a large swing

Therefore, when performing calibration, it is necessary to wait for a long time for the plumb bob to stabilize before reading, thus resulting in a very low calibration work efficiency, and it often takes one to two hours to calibrate a vertical line coordinate instrument

In addition, if the site environment is complex, for example, if there is vibration or wind on the site, it will be difficult to stabilize the vertical line, resulting in a large deviation in the readings of the calibration device

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