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.

Date of Patent:
Oct. 11, 2016

Filed:

Feb. 09, 2015
Applicant:

Mitutoyo Corporation, Kanagawa, JP;

Inventors:

Hideyuki Nakagawa, Tsukuba, JP;

Nobuhiro Ishikawa, Ushiku, JP;

Assignee:

MITUTOYO CORPORATION, Kanagawa, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 5/008 (2006.01); G01B 5/016 (2006.01);
U.S. Cl.
CPC ...
G01B 5/008 (2013.01); G01B 5/016 (2013.01);
Abstract

A calculator includes a first filter, a second filter, and an adding device. The first filter outputs, as a first corrected value, a value in which displacement of a displacement table detected by a scale has been corrected based on first frequency transfer characteristics from a scale to a measured object station. The second filter outputs, as a second corrected value, a value in which the first corrected value is corrected based on second frequency transfer characteristics from a ball tip to a ball tip displacement detector. The adding device adds the second corrected value and displacement of the ball tip detected by the ball tip displacement detector to calculate a measured value.


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