Fiber-optic vibration sensor

The sensor comprises a vibrating sheet (1), mechanically connected to the body (5A) to be analyzed, and an optical triangulation recording system for recording the displacements of the movable part of the sheet, in particular the free end (1B) opposite to that which is restrained; the recording syst...

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Bibliographic Details
Main Authors MENCAGLIA, ANDREA AZELIO, CONFORTI, GIULIANO, MIGNANI, ANNA GRAZIA, BRENCI, MASSIMO
Format Patent
LanguageEnglish
French
German
Published 25.05.1994
Edition5
Subjects
MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES
MEASURING
PHYSICS
TESTING
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Summary:The sensor comprises a vibrating sheet (1), mechanically connected to the body (5A) to be analyzed, and an optical triangulation recording system for recording the displacements of the movable part of the sheet, in particular the free end (1B) opposite to that which is restrained; the recording system comprises two optical fibers (7, 9) ending in microlenses (10, 12) having optical axes mutually inclined and converging in the movable part (1B) of the sheet.
Bibliography:Application Number: EP19890830343