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

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...

AI Technical Summary

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 evaluate the output value of the laser centering instrument

Moreover, the method of calibrating and measuring the laser alignment instrument through a combination of multiple instruments has relatively poor operability

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