Special verification/calibration device for digital level

A technology of digital leveling and calibration device, applied in measurement devices, instruments, etc., can solve the problems of inaccurate measurement, inability to measure, and impossible to scribe barcode images at the same time, and achieve the effect of simple structure

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A technology of digital leveling and calibration device, applied in measurement devices, instruments, etc., can solve the problems of inaccurate measurement, inability to measure, and impossible to scribe barcode images at the same time, and achieve the effect of simple structure

CN106441371AActive Publication Date: 2017-02-22西安富图精密仪器有限公司 +1

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[0024] The special verification / calibration device for the digital level of the present invention comprises two collimator tubes 1 opposite to each other; the central axes of the two collimator tubes 1 are on the same straight line, and three reticles are arranged on the collimator tube 1 Mounting heads, wherein two reticle mounting heads are arranged on the tube body of the collimator 1, and the other reticle mounting head is arranged on one end of the collimator 1, the central axes of the reticle mounting heads are at the same In the horizontal plane; the reticle installation head is fixedly equipped with a reticle and a light source 8;

[0025] A beam splitter is respectively arranged in an opening end of the two reticle mounting heads installed on the body of the collimator 1, and the opening ends are all located in the collimator 1, and the beam splitters are the first beam splitter 6 and the first beam splitter respectively. The second beam splitter 9, and the normal lin...

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Abstract

The invention relates to a special verification / calibration device for a digital level, which relates to the field of surveying instrument metrological verification, in particular to the special verification / calibration device for the digital level for indoors verifying various technical indexes of the digital level. The device comprises two parallel light pipes arranged face to face, wherein central axes of the two parallel light pipes are in the same straight line; three reticle installation heads are arranged on each parallel light pipe; two reticle installation heads are arranged on a pipe body of each parallel light pipe; the other reticle installation head is arranged on one end of each parallel light pipe. The special verification / calibration device for the digital level provided by the invention is simple in structure; three reticles are arranged independently and can independently image, so that the technical problem of blurred vision caused by field depth of an image is effectively solved; a controller is utilized for controlling the brightness and on / off of a light source of a corresponding reticle; and a two-dimensional inclined elevated working platform is utilized for enabling the digital level to be calibrated to be at an orthogonal state in a tilting manner in a two-dimensional direction.

Description

technical field [0001] The invention relates to the field of measurement and verification of surveying and mapping instruments, in particular to a special verification / calibration device for a digital level for indoor verification of various technical indicators of a digital level. Background technique [0002] At present, the verification of digital levels is mostly carried out by the outdoor method. With the development of technology, the indoor collimator simulation method has been applied. According to the provisions of the national metrology standard "JJG (Survey and Mapping) 2101-2013 Digital Level", the verification / calibration device consists of two special collimator devices placed on opposite diameters and a set of lifting and micro-tilting devices. [0003] The existing special device for collimators is to install one or two different reticles inside each collimator, on which the miniature images of barcode rulers matching the digital levels of different manufactu...

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Application Information

Patent Timeline

22 Feb 2017

Publication

CN106441371A

IPC: G01C25/00

CPC: G01C25/00

Inventors: 李华; 杨锟