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Regressive reflective ball length standard rod length measuring device and measuring method thereof

A technology of length measurement and reflective device, which is applied in the direction of measurement device, optical device, geometric characteristic/aberration measurement, etc., can solve the problem of difficulty in accurately obtaining the optical center distance of the retroreflective sphere, and achieves the effect of simple structure and convenient operation.

Active Publication Date: 2019-09-06
BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a retroreflective ball length standard rod length measuring device and its measuring method to solve the problem that it is difficult to accurately obtain the optical center distance between two retroreflective ball standard rods using a coordinate measuring machine at present

Method used

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  • Regressive reflective ball length standard rod length measuring device and measuring method thereof
  • Regressive reflective ball length standard rod length measuring device and measuring method thereof
  • Regressive reflective ball length standard rod length measuring device and measuring method thereof

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Embodiment 1

[0051] see Figure 1-2 , the present embodiment provides a retroreflective ball length standard rod length measuring device, including an optical aiming device, a calibration device, an orientation sliding device and a distance measuring device;

[0052] The optical aiming device is arranged on one side of the directional sliding device, and is used to aim at the optical center of the retroreflective ball at both ends of the retroreflective ball length standard rod 1;

[0053] The calibration device is installed on the directional sliding device, and a pre-calibrated retroreflective ball length standard rod 1 is placed on the calibration device;

[0054] The directional sliding device is used to drive the retroreflective ball length standard rod 1 after directional calibration to carry out directional movement;

[0055] The distance measuring device is used to detect the sliding distance of the directional sliding device.

[0056] In the process of actual measurement, firstl...

Embodiment 2

[0076] This embodiment is based on embodiment 1, specifically provides a kind of measuring method of retroreflective ball length standard rod length measuring device, comprising:

[0077] S1, place the pre-calibrated retroreflective ball length standard rod 1 in the "V" bayonet of the supporting block 5, and adjust the calibration device to make the central axis of the retroreflective ball length standard rod 1 slide with the directional sliding device direction parallel;

[0078]S2, use the optical sighting device 16 to aim at the optical center of the retroreflective ball at the front end of the retroreflective ball length par 1, and read the measurement data on the laser interference distance measuring device 17 for the first time (you can also place the laser interference distance measuring device on the laser interference distance measuring device 17 The reading is cleared), record the measurement data as L 0 ;

[0079] S3, the optical aiming device 16 remains stationar...

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Abstract

The invention relates to the technical field of precision engineering surveying, and provides a regressive reflective ball length standard rod length measuring device and a measuring method thereof. The regressive reflective ball length standard rod length measuring device comprises an optical sighting device, a calibration device, a directed sliding device and a distance measuring device; the optical sighting device is used for aiming optical centers of the regressive reflective balls at the two ends of the regressive reflective ball length standard rod; the calibration device is mounted on the directed sliding device, and a pre-calibrated regressive reflective ball length standard rod is placed on the calibration device; and the distance measuring device is used for detecting a sliding distance of the directed sliding device. The invention has the advantages of simple structure and convenient operation; and accurate measurement of the optical center spacing of the regressive reflective balls at both ends of the regressive reflective ball length standard rod is realized through using an indirect ranging method.

Description

technical field [0001] The invention relates to the technical field of precision engineering measurement, in particular to a device for measuring the length of a regression reflective ball and a standard rod length and a measuring method thereof. Background technique [0002] In the field of precision engineering measurement technology, the photogrammetry system, as a representative of high-precision large-scale measuring instruments, plays an important role in the field of geometric measurement. The accuracy of the photogrammetry system needs to be calibrated with the length standard rod of the retroreflective ball, and the calibration accuracy of the length standard rod of the retroreflective ball is an important factor affecting the calibration accuracy of the photogrammetric system. [0003] Generally speaking, the retroreflective ball standard rod is a straight-line distance standard composed of two characteristic points. It consists of a cylindrical rod body and retror...

Claims

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Application Information

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IPC IPC(8): G01B11/02G01M11/02
CPCG01B11/02G01M11/0242
Inventor 缪寅宵宋金城刘柯郭力振朱浩
Owner BEIJING AEROSPACE INST FOR METROLOGY & MEASUREMENT TECH
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