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:
Dec. 18, 2007
Filed:
Aug. 09, 2004
Thomas W. Engel, East Hampton, CT (US);
Thomas W. Engel, East Hampton, CT (US);
CiDRA Corporation, Wallingford, CT (US);
Abstract
A piezocable based sensor for measuring unsteady pressures inside a pipe comprises a cable wrapped around the pipe and an outer band compressing the cable towards the pipe. The cable provides a signal indicative of unsteady pressure within the pipe in response to expansion and contraction of the pipe. The cable includes: a first electrical conductor, a piezoelectric material disposed around the first electrical conductor, a second electrical conductor disposed around the piezoelectric material, and an insulative jacket surrounding the piezoelectric material and electrical conductors. The cable may be part of an array of cables wrapped around the pipe, and a signal processor may determine a parameter of the fluid using the signals. A housing is disposed around the pipe and electrical components associated with the pipe. Ends of the housing include a sealing arrangement, which provides a seal between the ends of the housing and the pipe.