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Verification system and verification method for hand type laser distance measuring instrument

A laser rangefinder and hand-held technology, which is applied in the direction of radio wave measurement systems and instruments, can solve the problems of large site area and the need for temperature correction of the indication reference, so as to reduce labor intensity, significant market benefits, and reduce the overall occupancy effect of space

Inactive Publication Date: 2015-03-25
XIAN UNIV OF TECH
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The purpose of the present invention is to provide a hand-held laser range finder verification system, which solves the problems of the hand-held laser range finder verification method in the prior art, the required site area is large, and the reference value needs temperature correction.

Method used

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  • Verification system and verification method for hand type laser distance measuring instrument
  • Verification system and verification method for hand type laser distance measuring instrument
  • Verification system and verification method for hand type laser distance measuring instrument

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Embodiment

[0077] During this test, the data of the rangefinder 1 and the total station 2 were collected many times. Among them, there are 11 groups of large-distance data (that is, 10-50m distance) measured by the mirror group, and the small-distance data measured directly (that is, 0 ~ 10m distance) there are 6 groups, see Table 3.

[0078] Table 3 Measurement data comparison table

[0079]

[0080] The comparison between the measurement errors of range finder 1 should satisfy the formula meet the requirements, among them, Y bi —Indication error value measured by the verification system of the handheld laser rangefinder; Y ci —Indication error value measured by China Institute of Metrology; u bi —Y bi The standard uncertainty of u; ci —Y ci standard uncertainty; k—coverage factor, preferably k=2. Through the multiple detection results of the handheld laser rangefinder by the ranging system, it can be seen from the correction error that the error value is within the normal ra...

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Abstract

The invention discloses a verification system and a verification method for a hand type laser distance measuring instrument. The verification system includes that a fixed dragging plate and a movable dragging plate are arranged on guiding rail, wherein a distance measuring instrument adjusting platform, a total station instrument adjusting platform and a near-end reflective mirror component are arranged on the fixed dragging plate. The distance measuring instrument adjusting platform is used for being provided with the distance measuring instrument and the total station instrument adjusting platform is used for being provided with a total station instrument. A far-end reflective mirror component is arranged on the movable drag plate. A second diaphragm is arranged on the movable drag plate and a first diaphragm is arranged on the fixed dragging plate. The invention further discloses the verification method for the hand type laser distance measuring instrument, wherein the verification method uses the verification system. The verification device and the verification method for the hand type laser distance measuring instrument are simple in arrangement, convenient to operate, small in occupied area, and high in measuring precision.

Description

technical field [0001] The invention belongs to the technical field of instrument verification, and relates to a verification system of a hand-held laser range finder, and also relates to a verification method of a hand-held laser range finder. Background technique [0002] The handheld laser rangefinder (hereinafter referred to as the rangefinder) is widely used in all aspects of life and industry due to its low cost, low price, and the ability to accurately complete short-distance measurements. As a measuring instrument, the handheld laser rangefinder must be periodically verified to ensure that its value transmission is accurate and reliable. At present, a large number of such instruments have been submitted for inspection, but the development of detection technology is relatively slow. The contradiction between them will become increasingly prominent with the extensive use of such instruments, and the service life of such instruments is more than 10 years, and the amoun...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/497
Inventor 乔卫东邱宗明赵敏
Owner XIAN UNIV OF TECH
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