Patent · US Expired

Dynamic holographic velocimeter for the measurement of vibrations

US6486959B2 · kind B2 · utility

4Cited by

1References

24Claims

0Family size

Assignee

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR

Inventors

Philippe Delaye · Paris, FR
Gerald Roosen · Rambouillet, FR

Key dates

Filing date	Jan 4, 2001
Grant date	Nov 26, 2002
Priority date	—
Expiry date	Jan 4, 2021

Classification

Technology area (CPC G)Physics
CPC primaryG03H2001/0033
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A process for velocimetric measurement of a target including causing interference in a dynamic holographic material of a reference laser beam and a beam diffused by the target, and measuring variations in luminous intensity transmitted by the material with a photoelectric detector, wherein the target vibrates with a displacement greater than the wavelength and with an extension limited around a mean position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.