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. 09, 2025
Filed:
Apr. 20, 2022
Endress+hauser Se+co. KG, Maulburg, DE;
Dietmar Frühauf, Lörrach, DE;
Raphael Kuhnen, Schliengen, DE;
Endress+Hasuer SE+Co. KG, Maulburg, DE;
Abstract
A detection device for a magnetic sensor for detecting a magnetic field by means of a crystal body having at least one defect comprises a light source for exciting the defect; an excitation unit for producing a first excitation signal having a first specifiable frequency and a second excitation signal having a second specifiable frequency; a detector of a magnetic-field-dependent fluorescence signal of the crystal body; and an evaluation unit designed to determine the first excitation frequency and the second excitation frequency of the first and second excitation signals on the basis of the fluorescence signal such that the fluorescence signal as a function of the frequency has a minimum at the first excitation frequency and/or at the second excitation frequency Also disclosed is a magnetic sensor, a sensor device, and a method for detecting a magnetic field.