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:
Mar. 29, 2005
Filed:
Sep. 06, 2001
Gendrin Stéphane, Bruz, FR;
Jean Fourcade, Champs sur Marne, FR;
Thierry Pasquet, Livry Gargan, FR;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A sensor module including a processing unit, a stroke sensor and a force sensor () for obtaining data relating to both a force exerted on an axially-moving rod () and the travel of the rod through a determination of the position of the piston () with respect to the rod (). The sensor module is characterized by a first stationary electrical coil () that is arranged about the piston () and the rod () and a second moving electrical coil () that is disposed about the rod () and connected to the force sensor (). The first () and second () coils are coaxial and as a result induced oscillatory voltage within the stationary coil () generates an eddy current within the piston () that permit a measurement of the stroke of the piston () by means of eddy-current signal received by the stroke sensor using the piston () as a test body, and supplying the force sensor with electrical power through the second moving electrical coil (). The first stationary electrical coil () is further used as a medium for the transmission of an electrical measurement signal (S) that is generated by the force sensor ().