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:
May. 16, 2000
Filed:
Jun. 22, 1998
Yoichi Toida, Kawasaki, JP;
Toshiro Horikawa, Kawasaki, JP;
Mitutoyo Corporation, Kawasaki, JP;
Abstract
The object of present invention is to provide a sensitivity calibrating method for a detector of a comparator, which enables easy and highly accurate sensitivity calibration for a first and a second detector for measuring opposing position of an object. Heights of two pairs of reference gauge blocks, a first reference gauge block W1 and a second reference gauge block W2, and the second reference gauge block W2 and a third reference gauge block W3 is first measured, and thereafter, sensitivity coefficients for calibrating the sensitivity of an upper detector 10 and a lower detector 20 are calculated by applying the measured value to a predetermined formula. The calculation is repeated three times, and each value is renewed for the upper and the lower detector 10 and 20 respectively.