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:
Sep. 17, 2002
Filed:
Jun. 25, 1999
Rebecca S. McGuinn, Middletown, CT (US);
Daniel L. Gysling, Glastonbury, CT (US);
Charles R. Winston, Glastonbury, CT (US);
Allen R. Davis, Glastonbury, CT (US);
John M. Faustino, Hamden, CT (US);
CiDRA Corporation, Wallingford, CT (US);
Abstract
Non-intrusive pressure sensors for measuring unsteady pressures within a pipe include an optical fiber wrapped in coils around the circumference of the pipe . The length or change in length of the coils is indicative of the unsteady pressure in the pipe. Bragg gratings impressed in the fiber may be used having reflection wavelengths &lgr; that relate to the unsteady pressure in the pipe. One or more of sensors may be axially distributed along the fiber using wavelength division multiplexing and/or time division multiplexing.