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DIFFERENTIELLER INTERFEROMETRISCHER SENSOR MIT MEHRSTRAHLIGEM LASER UND VERFAHREN ZUR VIBRATIONSBILDGEBUNG

Patentnummer:EP3326152B1
IPC Hauptklasse:G01B11/25
Anmelder:THE UNIV OF MISSISSIPPI (1)
Erfinder:ARANCHUK VYACHESLAV (1)
VYACHESLAV ARANCHUK (1)
Anmeldung:21.07.16
Patenterteilung:18.05.22
Einspruch bis:18.02.23

Abstract / Hauptanspruch
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.


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