Method for Measuring an Electrical Current and Current Sensor
AssigneeRobert Bosch GmbH
InventorsTheresa Lutz, Frank Schatz, Robert Roelver
Life of this patent
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Abstract
The disclosure relates to a method for measuring a current using a diamond material. The diamond material has at least one nitrogen deposit and an imperfection in a crystal lattice of the diamond material, adjacent to the nitrogen deposit. The method comprises a providing step, a detecting step and an evaluating step. In the providing step, electromagnetic waves are provided to excite the diamond material. In the evaluating step, an intensity of a fluorescence of the diamond material is detected. In the evaluating step, the intensity and a frequency of the electromagnetic waves are evaluated in order to determine a magnetic field strength influencing the fluorescence.
Claims10
A method for measuring an electric current producing a magnetic field, using a diamond material which is exposed to the magnetic field, the diamond material having at least one nitrogen intercalation and a vacancy in a crystal lattice of the diamond material which is adjacent to the nitrogen intercalation, the method comprising:
- exciting the diamond material to fluorescence by providing first electromagnetic waves in a first frequency spectrum and second electromagnetic waves in a second frequency spectrum;
- detecting a fluorescence intensity of the fluorescence;
- ascertaining a magnetic field strength of the magnetic field influencing the fluorescence by evaluating the fluorescence intensity and a frequency of the second electromagnetic waves;
- and
- determining a current intensity of the electric current based on the magnetic field strength.
A current sensor for measuring an electric current producing a magnetic field, the current sensor comprising:
- a diamond material which is exposed to the magnetic field, the diamond material having at least one nitrogen intercalation and a vacancy in a crystal lattice of the diamond material which is adjacent to the nitrogen intercalation;
- an emitter configured to excite the diamond material to fluorescence by providing first electromagnetic waves in a first frequency spectrum and second electromagnetic waves in a second frequency spectrum;
- a sensor configured to detect a fluorescence intensity of the fluorescence;
- an evaluating device configured to ascertain a magnetic field strength of the magnetic field based on the fluorescence intensity and a frequency of the second electromagnetic waves;
- and
- a determining device configured to determine a current intensity of the electric current based on the magnetic field strength.
A non-transitory computer program for measuring an electric current producing a magnetic field, using a diamond material which is exposed to the magnetic field, the diamond material having at least one nitrogen intercalation and a vacancy in a crystal lattice of the diamond material which is adjacent to the nitrogen intercalation, the computer program being configured to at least one of carry out, implement, and control:
- excitation of the diamond material to fluorescence by providing first electromagnetic waves in a first frequency spectrum and second electromagnetic waves in a second frequency spectrum;
- detection of a fluorescence intensity of the fluorescence;
- ascertainment a magnetic field strength of the magnetic field influencing the fluorescence by evaluating the fluorescence intensity and a frequency of the second electromagnetic waves;
- and
- determination of a current intensity of the electric current based on the magnetic field strength.
Dependencies are inferred from the claim text.