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. 28, 2010
Filed:
Feb. 05, 2008
Andrea Moroni, Gorla Minore, IT;
Andrea Pozzi, Villa Guardia, IT;
Andrea Moroni, Gorla Minore, IT;
Andrea Pozzi, Villa Guardia, IT;
ABB S.p.A., Milan, IT;
Abstract
A pressure transmitter for detection of a physical variable relative to a process fluid, comprising: a first and a second pressure-sensitive membrane suitable for interfacing with said process fluid; a pressure sensor having a supporting body provided with a cavity inside which a third pressure-sensitive membrane is positioned; an analysis and conditioning unit operationally coupled to at least one light source; a first and a second optical fiber having a first end operationally coupled to said power source; said first and second optical fibers transmitting the light signals emitted by said source to said third membrane and the signals reflected by the third membrane to said analysis and conditioning unit which generates signals indicating said physical variable.