Invention Grant
- Patent Title: Laser multibeam differential interferometric sensor and methods for vibration imaging
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Application No.: US15745771Application Date: 2016-07-21
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Publication No.: US10429171B2Publication Date: 2019-10-01
- Inventor: Aranchuk Vyacheslav
- Applicant: THE UNIVERSITY OF MISSISSIPPI
- Applicant Address: US MS University
- Assignee: THE UNIVERSITY OF MISSISSIPPI
- Current Assignee: THE UNIVERSITY OF MISSISSIPPI
- Current Assignee Address: US MS University
- Agency: Armstrong Teasdale LLP
- International Application: PCT/US2016/043251 WO 20160721
- International Announcement: WO2017/015424 WO 20170126
- Main IPC: G01B9/02
- IPC: G01B9/02 ; G01H9/00 ; G01B11/16 ; G01M7/02

Abstract:
A sensor for a vibration imaging system is provided. The sensor includes a transmitter configured to project an array of laser beams onto a surface of an object such that neighboring beams in the array of laser beams are frequency shifted relative to each other, an interferometer configured to mix radiations reflected from neighboring points on the surface of the object such that the radiations from neighboring points interfere with one another, a photodetector array configured to produce output signals representative of the interfering beams, a demodulator configured to demodulate the output signals, and a computing device configured to calculate a deformation profile for the object based on the demodulated output signals.
Public/Granted literature
- US20180216927A1 LASER MULTIBEAM DIFFERENTIAL INTERFEROMETRIC SENSOR AND METHODS FOR VIBRATION IMAGING Public/Granted day:2018-08-02
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