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:
Feb. 20, 2007
Filed:
Mar. 18, 2003
Sabrina Bindocci, Collegno, IT;
Paolo Da Pont, Turin, IT;
Paolo Senor, Condove, IT;
Giorgio Carrer, Turin, IT;
Sergio Giordano, Caselle Torinese, IT;
Angelo Muneretto, Rivoli, IT;
Sabrina Bindocci, Collegno, IT;
Paolo Da Pont, Turin, IT;
Paolo Senor, Condove, IT;
Giorgio Carrer, Turin, IT;
Sergio Giordano, Caselle Torinese, IT;
Angelo Muneretto, Rivoli, IT;
Elbi International S.p.A., Turin, IT;
Abstract
The transducer () comprises: a rigid casing () in which a membrane () is clamped which, together with a portion of the casing (), defines at least one chamber () of variable volume; at least one winding (); an interaction element (), able to interact magnetically with the winding () under the effect of a displacement of the membrane (), in such a way that the inductance of the winding () is variable in dependence on the relative position of the interaction element with respect to the winding (), and circuit devices () connected to the winding () and operable to supply electrical signals of which one parameter, frequency for example, is variable in dependence on the inductance of the winding (); the said circuit devices () including a memory () operable to store data representative of corrective values which, when applied in operation to the effective instantaneous values of the said parameter, make it possible to obtain correct values of the parameter corresponding to a predetermined transduction characteristic.