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. 12, 2002
Filed:
Dec. 01, 2000
Applicant:
Inventors:
Assignee:
Mitutoyo Corporation, Kawasaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 2/726 ;
U.S. Cl.
CPC ...
G01R 2/726 ;
Abstract
A capacitive distance sensor adapted to measure a distance between an object and the sensor device, which is suitable for determining surface configuration of an object includes a objective electrode, moving device for the objective electrode and a detecting means of moving distance of the objective electrode. The moving device is controlled depending on the signal from the objective electrode to position it in a predetermined range of clearance. The distance between the object and the sensor device is calculated based on the signals from the detecting means and the objective electrode.