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. 15, 2019

Filed:

Feb. 12, 2018
Applicant:

Omron Corporation, Kyoto, JP;

Inventors:

Tomonori Kondo, Fukuchiyama, JP;

Yuta Suzuki, Ayabe, JP;

Kenichi Matoba, Otsu, JP;

Assignee:

OMRON Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/25 (2006.01); G01S 17/46 (2006.01); G01S 7/481 (2006.01); G01B 21/04 (2006.01); G01B 11/06 (2006.01);
U.S. Cl.
CPC ...
G01S 17/46 (2013.01); G01B 11/06 (2013.01); G01B 11/0608 (2013.01); G01B 21/042 (2013.01); G01B 21/045 (2013.01); G01S 7/4811 (2013.01); G01B 2210/50 (2013.01);
Abstract

A displacement measurement device and a measurement method are provided. A displacement measurement device includes a light projecting unit configured to generate a light beam; a sensor head configured to emit the light beam to a measurement target object and receive a light beam reflected at the measurement target surface within the emitted light beam; a storage unit configured to store a function using a distance between the sensor head and the measurement target surface as a variable; and a control unit configured to calculate the distance based on a wavelength of the light received by the sensor head. The control unit calculates a value of the function using a distance between the sensor head and the measurement target surface of the measurement target object as a value of the variable. The control unit corrects the calculated distance using the calculated value of the function.


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