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Patent Searching and Data


Title:
X線計測装置の校正方法
Document Type and Number:
Japanese Patent JP7257924
Kind Code:
B2
Abstract:
A calibration method of an X-ray measuring device includes: a front-stage feature position calculation step of parallelly moving spheres disposed in N places a plurality of times, and identifying centroid positions ImPos(1 to Q)_Dis(1 to M)_Sphr_(1 to N) of projected images of the spheres in the N places; an individual matrix calculation step of calculating an individual projection matrix PPj (j=1 to Q) for each of the spheres; an individual position calculation step of calculating moving positions Xb of the spheres on the basis of the individual projection matrix PPj (j=1 to Q); a coordinate integration step of calculating specific relative position intervals X(1 to N) of the spheres; a rear-stage feature position calculation step; a transformation matrix calculation step of calculating a projective transformation matrix Hk (k=1 to Q); a rotation detection step; a position calculation step; and a center position calculation step.

Inventors:
Masato now
Hirotake Shinya
Seiji Sasaki
Miyata Jouta
Application Number:
JP2019163979A
Publication Date:
April 14, 2023
Filing Date:
September 09, 2019
Export Citation:
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Assignee:
Mitutoyo Corporation
International Classes:
G01B15/00; G01N23/046
Domestic Patent References:
JP2007078469A
JP2006003200A
JP2007333596A
JP2005127881A
JP2012233919A
JP2016538552A
JP2015525665A
Attorney, Agent or Firm:
Patent Attorney Corporation MTS International Patent Office