Calibration device of laser alignment device and method for measuring indication errors of laser alignment device through calibration device

A technology for calibrating equipment and indication errors, which is applied to measuring devices, instruments, and optical devices, can solve the problems of inability to measure indication errors, unreliable evaluation of measurement values, and poor operability, so as to avoid loss of precision and prevent Accidental crash, low price effect

Active Publication Date: 2017-07-28
广东省计量科学研究院(华南国家计量测试中心)
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Problems solved by technology

This measurement method can only judge whether the working status of the centering instrument is normal, but cannot measure the indication error of the centering deviation, so it is impossible to reliably evalua

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  • Calibration device of laser alignment device and method for measuring indication errors of laser alignment device through calibration device
  • Calibration device of laser alignment device and method for measuring indication errors of laser alignment device through calibration device
  • Calibration device of laser alignment device and method for measuring indication errors of laser alignment device through calibration device

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Embodiment Construction

[0037] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0038] The laser alignment instrument can realize functions such as automatic collection of data, automatic processing of data, and real-time display of the adjustment value. CCD) and inclinometer, its working principle is: the beam emitted by the laser forms a track on the position sensitive sensor, if the relative position of the measured object changes, the position of the position sensitive sensor (coordinate value of PSD or CCD) will change, The display system of the laser alignment instrument automatically performs data processing and compensation according to the coordinates collected by the position sensitive sensor, the angle of inclinometer, the distance from the manually input laser transmitter to the receiving surface of the position sensitive sensor, and the mathematical relationship model of the centering deviation. , and then get the out...

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Abstract

The invention discloses a calibration device of a laser alignment device and a method for measuring indication errors of the laser alignment device through the calibration device. The calibration device comprises two mutually independent rotation shafts capable of rotating for 360 degrees. One of the rotation shafts is used as a reference shaft and the other rotation shaft is capable of moving, pitching and deflecting in the horizontal direction and vertical direction. By setting the rotation angles of the rotation shafts, and adjusting the horizontal and vertical displacement quantity, pitching quantity and deflection quantity of the other rotation shaft, measurement of the displacement quantity in the horizontal and vertical directions, the rotation angle quantity of an inclinometer and indication errors of alignment deviation of a position sensitive sensor of the laser alignment device can be achieved. According to the invention, operation states of the laser alignment device in actual working processes can be precisely simulated; the standard alignment deviation quantity of measurement shafts can be displayed in a real-time and direct manner; calibration results are quite precise; and operability of the measurement process is quite high.

Description

technical field [0001] The present invention relates to the field of instrument calibration, in particular to a calibration device for a laser centering instrument and a position-sensitive sensor for measuring the displacement in the horizontal and vertical directions of the laser centering instrument, the angle of the inclinometer, and the axis alignment of the laser centering instrument Method of indication error of deviation. Background technique [0002] The laser alignment instrument is used to measure the alignment deviation between mechanical joints (including horizontal and vertical parallel deviation x 0 、y 0 and angular deviation Θ / / , Θ ⊥ ) instrument. In recent years, laser alignment instruments have been widely used in the manufacture, installation, commissioning and real-time monitoring of large-scale mechanical equipment such as wind power, hydropower, chemical industry, nuclear power, rail transit, and ports. [0003] In China, many researchers have don...

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Application Information

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IPC IPC(8): G01B11/27
CPCG01B11/27
Inventor 梁平张勇黄敏晗陈伟琪
Owner 广东省计量科学研究院(华南国家计量测试中心)
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