Intuitive Surgical Operations, Inc.

Matthew A Castellucci

Matthew M White

Mark Earl Froggatt

Alexander K Sang

Eric E Sanborn

Evan M Lally

Matthew T Reaves

Emily E H Templeton

Sandra M Klute

Nur Aida Abdul Rahim

John J Kutz

Emily E Horrell

Naman Garg

A pressure sensing pad includes a flexible planar layer having a two-dimensional sensing area, and an optical fiber embedded in the plane of the flexible planar layer traversing the two-dimensional sensing area in a particular configuration. At least one end of the fiber optic strain sensor has a connector that is connectable to an interferometric-based fiber optic interrogation and processing system. When the connector is connected to the an interferometric-based fiber optic interrogation and processing system and pressure is applied to the pressure sensing pad, a signal from the optical fiber is provided to and processed by the interferometric-based fiber optic interrogation and processing system to determine a two-dimensional pressure map for the two-dimensional sensing area.

Distributed pressure measurement by embedded fiber optic strain sensor

Optical frequency domain reflectometry (OFDR) circuitry to perform tasks on an optical fiber to generate calibration or correction data for calibrating or correcting a reference OFDR data set. A segmented technique is used which permits precise and accurate determination of the correction data for even initial and long fiber lengths. Correction information for each segment is stitched together to generate the correction data for the fiber.

Methods and apparatus segmented calibration of a sensing optical fiber

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Blacksburg, VA, United States of America

Matthew A Castellucci