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:
Mar. 30, 2021
Filed:
Mar. 07, 2019
Saudi Arabian Oil Company, Dhahran, SA;
King Abdullah University of Science and Technology, Thuwal, SA;
Frode Hveding, Dhahran, SA;
Islam Ashry, Thuwal, SA;
Mao Yuan, Thuwal, SA;
Mohd Sharizal Bin Alias, Thuwal, SA;
Boon Siew Ooi, Thuwal, SA;
Muhammad Arsalan, Dhahran, SA;
Saudi Arabian Oil Company, Dhahran, SA;
King Abdullah University of Science and Technology, Thuwal, SA;
Abstract
Systems and methods include a number of optical pulses are transmitted by transmitting, by a distributed acoustic sensor (DAS), where the optical pulses are transmitted at an input port associated with a multimode fibers (MMF) used by the DAS, and where the fundamental mode of the MMF is excited. A number of backscattered Rayleigh signals are collected by the DAS. The Rayleigh signals are recorded as an output intensity profile. A position along the MMF that is subject to vibrations and corresponding vibration parameters are determined by analyzing the recorded output intensity profile.