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:
Apr. 04, 2006
Filed:
Feb. 11, 2002
David J Hill, Dorset, GB;
Philip J Nash, Dorset, GB;
David J Hill, Dorset, GB;
Philip J Nash, Dorset, GB;
Qinetiq Limited, Farnborough, GB;
Abstract
A traffic monitoring system comprises at least one sensor station () and an interferometric interrogation system (); wherein the at least one sensor station () comprises at least one optical fibre sensor () deployed in a highway (); wherein the at least one optical fibre sensor () comprises a former (), an optical fibre () wound on the former, a casing () and compliant material () provided between the casing and the former; such that the compliant material reduces the sensitivity of the sensor (); and wherein the interferometric interrogation system () is adapted to respond to an optical phase shift produced in the at least one optical fibre sensor due to a force applied by a vehicle passing the at least one sensor station ().