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Title:
OPTICAL SENSOR
Document Type and Number:
WIPO Patent Application WO/2013/136071
Kind Code:
A3
Abstract:
An optical sensor having one or more sensing interference elements is disclosed. A first detector function generates a coarse optical path difference signal for example using a discrete Fourier transform of a detected interference spectrum, and a second detector function generates a refined optical path difference signal using the coarse optical path difference signal and for example a cross correlation of the interference spectrum with one or more sets of periodic transfer functions.

Inventors:
PECHSTEDT RALF-DIETER (GB)
Application Number:
PCT/GB2013/050619
Publication Date:
June 26, 2014
Filing Date:
March 13, 2013
Export Citation:
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Assignee:
OXSENSIS LTD (GB)
International Classes:
G01D5/353; G01L9/00; G01P15/093
Foreign References:
US20040052444A12004-03-18
GB2421586A2006-06-28
US20110317148A12011-12-29
US20120050735A12012-03-01
EP0154025A11985-09-11
US5218420A1993-06-08
US20050157305A12005-07-21
US7054011B22006-05-30
EP1816432A12007-08-08
Attorney, Agent or Firm:
PALMER, Jonathan (Verulam Gardens70 Gray's Inn Roa, London Greater London WC1X 8BT, GB)
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