DNV magnetic field detector
First Claim
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1. A system for magnetic detection, comprising:
- a magneto-optical defect center sensor comprising;
a magneto-optical defect center material comprising a plurality of magneto-optical defect centers;
a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material;
an optical excitation source configured to provide optical excitation to the magneto-optical defect center material;
an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material;
a controller configured to detect a gradient of the optical signal based on the hyperfine states emitted by the magneto-optical defect center material; and
a first magnetic field generator configured to generate a magnetic field, wherein the controller is further configured to;
control the first magnetic field generator to apply a first time varying magnetic field at the magneto-optical defect center material,determine a magnitude and direction of the magnetic field at the magneto-optical defect center material based on a received light detection signal from the optical detector; and
determine a magnetic vector anomaly due to an object based on the determined magnitude and direction of the magnetic field according to a frequency dependent attenuation of the time varying magnetic field.
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Abstract
A system for magnetic detection includes a nitrogen vacancy (NV) diamond material comprising a plurality of NV centers, a radio frequency (RF) excitation source configured to provide RF excitation to the NV diamond material, an optical excitation source configured to provide optical excitation to the NV diamond material, an optical detector configured to receive an optical signal emitted by the NV diamond material, and a controller. The optical signal is based on hyperfine states of the NV diamond material. The controller is configured to detect a gradient of the optical signal based on the hyperfine states emitted by the NV diamond material.
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Citations
32 Claims
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1. A system for magnetic detection, comprising:
a magneto-optical defect center sensor comprising; a magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material; a controller configured to detect a gradient of the optical signal based on the hyperfine states emitted by the magneto-optical defect center material; and a first magnetic field generator configured to generate a magnetic field, wherein the controller is further configured to; control the first magnetic field generator to apply a first time varying magnetic field at the magneto-optical defect center material, determine a magnitude and direction of the magnetic field at the magneto-optical defect center material based on a received light detection signal from the optical detector; and determine a magnetic vector anomaly due to an object based on the determined magnitude and direction of the magnetic field according to a frequency dependent attenuation of the time varying magnetic field. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 28, 29, 30)
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9. A system for magnetic detection, comprising:
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a magneto-optical defect center sensor comprising; a magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material; a controller configured to detect a gradient of the optical signal based on the hyperfine states emitted by the magneto-optical defect center material; and a transmitting device comprising; a first processor configured to transmit data to a transmitter; and the transmitter, wherein the transmitter is configured to transmit the data via a magnetic field. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 31)
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21. A system for magnetic detection, comprising:
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a magneto-optical defect center sensor comprising; a magneto-optical defect center material comprising a plurality of magneto-optical defect centers; a radio frequency (RF) excitation source configured to provide RF excitation to the magneto-optical defect center material; an optical excitation source configured to provide optical excitation to the magneto-optical defect center material; an optical detector configured to receive an optical signal emitted by the magneto-optical defect center material, wherein the optical signal is based on hyperfine states of the magneto-optical defect center material; a controller configured to detect a gradient of the optical signal based on the hyperfine states emitted by the magneto-optical defect center material; a first magnetic field sensor that includes the magneto-optical defect center sensor, a second magnetic field sensor that includes a second magneto-optical defect center sensor, and a position encoder component comprising a magnetic region configured to produce a magnetic field gradient from a first end of the magnetic region to the second end of the magnetic region, wherein the first magnetic field sensor and the second magnetic field sensor are separated by a distance that is less than a length of the magnetic region. - View Dependent Claims (22, 23, 24, 25, 26, 27, 32)
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Specification