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Three-dimensional coordinate measuring device

a three-dimensional coordinate and measuring device technology, applied in measurement devices, active open surveying means, instruments, etc., can solve problems such as troublesome calibration work for users, and achieve high accuracy and reliable shape measurement. , the effect of simple calibration work

Active Publication Date: 2020-11-19
KEYENCE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a three-dimensional coordinate measuring device that can accurately measure the shape of objects without complicated calibration work. This results in highly reliable and accurate shape measurement. Additionally, the device provides a user-friendly presentation unit that clearly indicates the necessity of calibrating the reference imaging unit.

Problems solved by technology

Such calibration work is troublesome for the user.

Method used

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  • Three-dimensional coordinate measuring device
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Examples

Experimental program
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Embodiment Construction

[1] Basic Structure and Example of Use of a Three-Dimensional Coordinate Measuring Device

[0046]FIG. 1 is a schematic view illustrating an example of use of a three-dimensional coordinate measuring device according to an embodiment of the invention. As illustrated in FIG. 1, a three-dimensional coordinate measuring device 1 according to the embodiment of the invention mainly includes an imaging head 100, a probe 200, and a processing device 300 and is used to measure, for example, physical quantities such as the dimensions of portions of a large measurement target S. In the example in FIG. 1, a large pipe is illustrated as the measurement target S. The measurement target S is placed on a floor surface.

[0047]The probe 200 is carried by a user U. The probe 200 has a contact part 211a. The user U brings the contact part 211a of the probe 200 into contact with a desired portion of the measurement target S. The portion of the measurement target S that makes contact with the contact part 2...

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Abstract

To provide a three-dimensional coordinate measuring device capable of performing highly reliable shape measurement at high accuracy without complicated calibration work. A motorized rotation stage is rotatably supported with respect to a reference base. A reference camera is fixed to the reference base, the reference camera captures an image of a plurality of reference markers provided on the motorized rotation stage. At the time of calibration, a plurality of markers of the reference member are captured at respective different postures of the motorized rotation stage. New camera parameters are calculated based on a plurality of reference images and reference marker information indicating the arrangement of the plurality of markers and then the camera parameters in the main body memory are updated to the new camera parameters.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]The present application claims foreign priority based on Japanese Patent Application No. 2019-093824, filed May 17, 2019, the contents of which are incorporated herein by reference.BACKGROUND OF THE INVENTION1. Field of the Invention[0002]The present invention relates to a three-dimensional coordinate measuring device capable of measuring the shape and the like of a measurement target.2. Description of Related Art[0003]Conventionally, a three-dimensional coordinate measuring device is used to measure the shape and the like of a measurement target. In a three-dimensional coordinate measuring device, the positions of a plurality of measurement points on the surface of a measurement target are calculated in sequence. The positions of measurement points to be calculated are represented in a three-dimensional coordinate system. The dimensions of a desired portion of the measurement target are measured based on the calculated positions of the p...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G01B11/00G01B11/03
CPCG01B11/03G01B11/007G01B21/047G01B11/002G01C15/002
Inventor IKEBUCHI, MASAYASU
Owner KEYENCE