Autocollimation indication error detection method and device using same

Abstract

The invention discloses an autocollimation indication error detection method which comprises the following steps of: measuring the angle indicated by a measured autocollimation (2) through a digital collimation system (4); transmitting the angle indicated by the detected autocollimation to the digital collimation system through a dual-plane reflecting mirror which can be used for transmitting the same angle value; adjusting the measured autocollimation to enable the detected autocollimation to generate angle value change of a plurality of measuring points, thereby measuring a plurality of corresponding angle value changes by the digital collimation system; taking the difference between every two angle value changes to obtain indication errors of a plurality of detection points; and taking the difference between a maximum value and a minimum value of the plurality of indication values as a final result of the indication error of the measured autocollimation. The invention also discloses a device using the autocollimation indication error detection method. According to the device disclosed by the invention, a photoelectric technology forms the digital collimation system for measuring the indication of the measured autocollimation; the indication errors of a measured autocollimation light tube are calculated by a data record and calculation system; and according to the device, manual reading, recording and calculating are avoided, so that the detection efficiency and accuracy are increased.

Description

technical field [0001] The invention relates to the field of instrument measurement, in particular to an autocollimator indication error detection device and method. Background technique [0002] The autocollimator is a precision measuring instrument used for small angle measurement. The current method of detecting the indication error of the autocollimator is according to the method introduced in the national metrology verification regulations of JJG202-2007 "Autocollimator", that is, through The standard angles are formed by the gauge block and the small angle checker, and then these standard angles are measured by the autocollimator to measure the indication error. The main problems of this detection method and device are: 1. The operation is complicated, time-consuming and labor-intensive, the requirements for personnel are high, and the labor intensity is high; 2. The data calculation is complicated, because the method relies on manual reading, and the detection data ne...

AI Technical Summary

Problems solved by technology

The main problems of this detection method and device are: 1. The operation is complicated, time-consuming and labor-intensive, the requirements for personnel are high, and the labor intensity is high; 2. The data calculation is complicated, because the method relies on manual reading, and the detection data needs to be manually recorded and processed. Therefore less efficient and prone to errors

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