The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 2021
Filed:
Apr. 28, 2020
Mitutoyo Corporation, Kanagawa-ken, JP;
Joseph Daniel Tobiason, Bothell, WA (US);
MITUTOYO CORPORATION, Kanagawa-Ken, JP;
Abstract
A calibration configuration for a chromatic range sensor (CRS) optical probe of a coordinate measurement machine (CMM) includes a calibration object. The calibration object includes at least a first nominally cylindrical calibration surface having a central axis that extends along a Z direction that is intended to be aligned approximately parallel to a rotation axis of the CRS optical probe. The first nominally cylindrical calibration surface is arranged at a known first radius Rfrom the central axis that extends along the Z direction. A first set of angular reference features is formed on or in the first nominally cylindrical calibration surface. The angular reference features are configured to be sensed by the radial distance sensing beam and are located at known angles or known angular spacings around the central axis from one another on or in the first nominally cylindrical calibration surface.