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Drilling platform stability precision laser monitoring device and laser drift calibration method

A drilling platform and monitoring device technology, which is applied in the field of precision measurement, can solve problems such as large measurement errors, and achieve the effects of reducing measurement errors and simple structure

Active Publication Date: 2020-11-24
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The main purpose of the present invention is to provide a precision laser monitoring device for drilling platform stability and a laser drift calibration method to solve the technical problem that laser drift will cause large measurement errors when using lasers to detect the stability of drilling platforms in harsh environments

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  • Drilling platform stability precision laser monitoring device and laser drift calibration method
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  • Drilling platform stability precision laser monitoring device and laser drift calibration method

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Embodiment Construction

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "comprising" and "having" in the description and claims of the present invention and the above drawings and any variations thereof are intended to cover a non-exclusive inclusion, for example, a product comprising a series of units Or the equipment is not necessarily limited to those units ex...

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Abstract

The invention discloses a drilling platform stability precision laser monitoring device and a laser drift calibration method. The device comprises a base, a first support and a second support which are arranged on the base, and a laser emitting device and a support adjusting mechanism which are arranged at the top of the first support and the top of the second support, wherein the first support isfar away from the laser emitting end of the laser emitting device, and the second support is close to the laser emitting end of the laser emitting device; the linear expansion coefficient of the material adopted by the first bracket is greater than that of the material adopted by the second bracket; the support adjusting mechanism is connected with the first support and / or the second support andused for adjusting the distance between the first support and the second support. The technical problem that large measurement errors can be caused by laser drift when laser is adopted for detecting the stability of the drilling platform in a harsh environment is solved.

Description

technical field [0001] The invention relates to the field of precision measurement, in particular to a precision laser monitoring device for drilling platform stability and a laser drift calibration method. Background technique [0002] Lasers are very linear and are often used for precision measurements. The drilling platform stability laser monitoring device is usually fixed near the drilling platform to detect the target position of the drilling platform for a long time, so as to detect the stability of the drilling platform. However, for drilling platforms in harsh environments, especially in the atmosphere of desert Gobi areas or ocean areas, when there is a temperature gradient, the refractive index of the air is non-uniformly distributed, which causes the beam to deviate from a straight line and bend during propagation. For measurement operations that require high precision, laser drift must be considered, and the angle drift of laser increases with the measurement d...

Claims

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Application Information

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IPC IPC(8): G01C15/00G01C25/00
CPCG01C15/006G01C25/00
Inventor 张立新
Owner PETROCHINA CO LTD
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