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:
Jun. 17, 2014
Filed:
Mar. 29, 2007
Philip John Nash, Surrey, GB;
David John Hill, Dorset, GB;
Philip John Nash, Surrey, GB;
David John Hill, Dorset, GB;
Optasense Holdings Ltd., , GB;
Abstract
A fiber-optic sensor package () comprises a serial array of fiber-optic sensing coils () each of which is comprised in a respective fiber-optic sensor. Four () of the coils are housed in a protective casing (). One of the coils () is comprised in a fiber-optic electromagnetic field sensor. The other coils are comprised in respective fiber-optic geophones and/or hydrophones. A single package of the invention allows detection of both seismic and electromagnetic signals. An array of packages of the invention provides detection of both seismic and electromagnetic signal at a series of positions over a long distance or wide area, thus avoiding the need for two conventional arrays. A packages of the invention, and an array of such packages, require little or no electrical power input.