Automatic verification system for handheld laser range finder and verification method

Abstract

The invention belongs to the geometric measuring device verification device technical field and relates to a laser range finder verification device, in particular to an automatic verification system for a handheld laser range finder and a verification method. The verification system includes a multi-degree-of-freedom adjustment pan / tilt holder, a verification table and an advancement measuring car; the multi-degree-of-freedom adjustment pan / tilt holder is integrally provided with a clamping device; the multi-degree-of-freedom adjustment pan / tilt holder is fixed to the end portion of one side of the verification table through the clamping device; the advancement measuring car is installed in the upper end surface of the verification table; an end surface of the advancement measuring car, which is located at the same side of the multi-degree-of-freedom adjustment pan / tilt holder, is internally provided with a reflection plate; the advancement measuring car can linearly reciprocate alongthe extending direction of the verification table; a standard ruler is mounted in the verification table along the extension direction of the verification table beside the advancement measuring car; aplurality of groups of driving wheels are mounted in the advancement measuring car; and at least one group of the driving wheels is connected with the output end of a stepping motor.

Description

technical field [0001] The invention belongs to the technical field of verification devices for geometric measuring devices, and relates to a verification device for a laser range finder, in particular to an automatic verification system and a verification method for a handheld laser range finder. Background technique [0002] The handheld laser rangefinder is a portable length measurement standard that uses the laser as the carrier and uses the time-of-flight or phase difference of the modulated laser to measure the target distance. It is widely used in short-range precision engineering measurements. In order to ensure the accuracy of the indication value of the range finder, the metrological verification institution verifies the repeatability of the indication value of the range finder, the consistency of the reference plane and the indication error in accordance with JJG966-2010 "Verification Regulations for Handheld Laser Range Finders". For the hand-held laser rangefind...

AI Technical Summary

Problems solved by technology

The cost of this system is low, but the positioning of the reference plane to be tested and the reflector of the rangefinder is judged by the naked eye, which is relatively subjective, and the verification process needs to complete the repositioning of the reflector many times and manually record the results , a large amount of labor and low test efficiency

[0008] To sum up, most of the current common handheld laser rangefinder verification systems have problems such as poor measurement stability, low degree of automation and high labor consumption, or the system structure design is too complicated, resulting in high cost and poor practicability. There is still no high-efficiency and high-precision automatic verification system

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