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:
Apr. 29, 2014
Filed:
Nov. 24, 2009
Reinhard Nopper, Ditzingen, DE;
Denis Gugel, Gerlingen, DE;
Andreas Arlt, Marbach, DE (US);
Klaus Walter, Bietigheim-Bissingen, DE;
Frank Schatz, Kornwestheim, DE;
Janpeter Wolff, Gerlingen, DE;
Reinhard Nopper, Ditzingen, DE;
Denis Gugel, Gerlingen, DE;
Andreas Arlt, Marbach, DE (US);
Klaus Walter, Bietigheim-Bissingen, DE;
Frank Schatz, Kornwestheim, DE;
Janpeter Wolff, Gerlingen, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
A sensor system includes: an at least partially magnetoelastic deformation element for measuring pressures, caused by a fluid, that are able to be applied to the magnetoelastic deformation element; and a magnetic circuit formed via a magnetic flux feedback and having a sensor unit and an evaluation unit. The sensor unit is positioned at the deformation element and the evaluation unit having an evaluation coil is structurally separated from, yet inductively coupled to, the sensor unit. The sensor unit has a sensor coil positioned on the deformation element and the evaluation unit has the evaluation coil that is inductively coupled to the sensor coil, the sensor coil forms a resonant circuit, using its own parasitic capacitance or using an additional capacitance, which is able to be energized by the evaluation coil in free resonance with strong or weak inductive coupling by a magnetic circuit enclosing the two coils.