Method for sensing an electric field
First Claim
1. A method for sensing an electric field comprising:
- receiving a digitized representation of an electric field sensed by a movable electric field sensing probe;
sensing a speed at which the movable electric field sensing probe is moving;
processing the digitized representation of the electric field at a rate that is related to the speed at which the movable electric field sensing probe is moving for defining a threshold;
performing a Fast Fourier Transform on the digitized representation of the electric field at a rate that is a multiple of the expected frequency of the electric field; and
comparing the Fast Fourier Transformed digitized representation of the electric field with the threshold to provide a human perceivable indication of the electric field.
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Accused Products
Abstract
A method for sensing an electric field includes processing digitized electric field signals, e.g., from an electric field sensing probe. The processing may include performing a Fast Fourier Transform of the digitized electric field signals to provide an indication of the magnitude of the electric field, and may include processing the digitized electric field signals at a rate that is related to the speed at which a movable sensing probe is moving. The method may include performing unweighted and/or weighted averaging in relation to processing electric field data, setting a comparison threshold, providing a human perceivable indication, or a combination of the foregoing.
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Citations
23 Claims
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1. A method for sensing an electric field comprising:
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receiving a digitized representation of an electric field sensed by a movable electric field sensing probe;
sensing a speed at which the movable electric field sensing probe is moving;
processing the digitized representation of the electric field at a rate that is related to the speed at which the movable electric field sensing probe is moving for defining a threshold;
performing a Fast Fourier Transform on the digitized representation of the electric field at a rate that is a multiple of the expected frequency of the electric field; and
comparing the Fast Fourier Transformed digitized representation of the electric field with the threshold to provide a human perceivable indication of the electric field. - View Dependent Claims (2, 3, 4)
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5. A method for sensing an electric field comprising:
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receiving a digitized representation of an electric field sensed by a movable electric field sensing probe;
sensing a speed at which the movable electric field sensing probe is moving;
processing the digitized representation of the electric field at a rate that is related to the speed at which the movable electric field sensing probe is moving; and
comparing the processed digitized representation of the electric field with a threshold to provide a human perceivable indication of the electric field. - View Dependent Claims (6, 7, 8, 9, 10, 11)
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12. A method for sensing an electric field comprising:
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receiving a digitized representation of an electric field;
performing a Fast Fourier Transform on the digitized representation of the electric field at a rate that is a multiple of the expected frequency of the electric field; and
comparing the Fast Fourier Transformed digitized representation of the electric field with a threshold to provide a human perceivable indication of the electric field. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification