The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 05, 2014
Filed:
Jun. 15, 2009
Applicants:
Roger Ian Crickmore, Wareham, GB;
Jolyon Defreitas, Paignton, GB;
Philip John Nash, Guilford, GB;
Inventors:
Assignee:
Optasense Holdings Ltd., , GB;
Primary Examiner:
Int. Cl.
CPC ...
G01V 1/00 (2006.01); G01V 1/24 (2006.01);
U.S. Cl.
CPC ...
G01V 1/24 (2013.01);
Abstract
A method of sensing using a phase based transducer in which a transducer response is provided at multiple different levels of sensitivity. The different levels of sensitivity are used to produce an output which does not overscale across a wide range of signal levels. This is particularly useful for use in conjunction with multiplexed arrays of fiber optic sensors for seismic surveying. Methods of sensor calibration and noise reduction are also described.