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:
Oct. 10, 2017
Filed:
Jul. 08, 2014
Intuitive Surgical Operations, Inc., Sunnyvale, CA (US);
Mark E. Froggatt, Blacksburg, VA (US);
Justin W. Klein, Blacksburg, VA (US);
Dawn K. Gifford, Blacksburg, VA (US);
Stephen Tod Kreger, Blacksburg, VA (US);
Intuitive Surgical Operations, Inc., Sunnyvale, CA (US);
Abstract
An accurate measurement method and apparatus using an optical fiber are disclosed. A total change in optical length in an optical core in the optical fiber is determined that reflects an accumulation of all of the changes in optical length for multiple segment lengths of the optical core up to a point on the optical fiber. The total change in optical length in the optical core is provided for calculation of an average strain over a length of the optical core based on the detected total change in optical length.