Detector for calculating the depth of a buried conductor
First Claim
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1. A detector for calculating a depth of a buried conductor, the detector comprising:
- at least three antennas for detecting an electromagnetic field radiated by a buried conductor;
means for calculating the depth of said conductor based on the field detected by the antennas; and
means for displaying the calculated depth of said conductor,wherein the detector is configured such that the calculated depth is displayed on the means for displaying the calculated depth when one or more predetermined criteria are satisfied, and wherein the antennas are vertically spaced and include a top horizontal antenna, a bottom horizontal antenna and a middle horizontal antenna disposed between the top antenna and the bottom antenna at a separation s from each antenna, or, the antennas include a bottom vertical antenna, a bottom horizontal antenna, a first middle horizontal antenna and a second middle horizontal antenna oriented substantially orthogonally to the first middle horizontal antenna.
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Abstract
A detector for calculating a depth of a buried conductor is provided. The detector includes a plurality of antennas for detecting an electromagnetic field radiated by the conductor and one or more signal processors for calculating the depth of the conductor based on the field detected by the antennas. The calculated depth of the conductor is displayed when one or more predetermined criteria are satisfied.
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Citations
36 Claims
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1. A detector for calculating a depth of a buried conductor, the detector comprising:
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at least three antennas for detecting an electromagnetic field radiated by a buried conductor; means for calculating the depth of said conductor based on the field detected by the antennas; and means for displaying the calculated depth of said conductor, wherein the detector is configured such that the calculated depth is displayed on the means for displaying the calculated depth when one or more predetermined criteria are satisfied, and wherein the antennas are vertically spaced and include a top horizontal antenna, a bottom horizontal antenna and a middle horizontal antenna disposed between the top antenna and the bottom antenna at a separation s from each antenna, or, the antennas include a bottom vertical antenna, a bottom horizontal antenna, a first middle horizontal antenna and a second middle horizontal antenna oriented substantially orthogonally to the first middle horizontal antenna. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method of calculating a depth of a buried conductor, the method comprising:
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detecting an electromagnetic field radiated by a buried conductor using at least three antennas; calculating the depth of said conductor based on the field detected by the antennas; providing a display device for displaying the calculated depth of said conductor, and displaying the calculated depth on the display device when one or more predetermined criteria are satisfied, and wherein the antennas are vertically spaced and include a top horizontal antenna, a bottom horizontal antenna and a middle horizontal antenna disposed between the top antenna and the bottom antenna at a separation s from each antenna, or, the antennas include a bottom vertical antenna, a bottom horizontal antenna, a first middle horizontal antenna and a second middle horizontal antenna oriented substantially orthogonally to the first middle horizontal antenna. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A detector for calculating a depth of a buried conductor, the detector comprising:
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at least three antennas for detecting an electromagnetic field radiated by a buried conductor; a microprocessor configured to calculate the depth of said conductor based on the field detected by the antennas; and a display device for displaying the calculated depth of said conductor, wherein the microprocessor is configured to display the calculated depth on the display device when one or more predetermined criteria are satisfied, and wherein the antennas are vertically spaced and include a top horizontal antenna, a bottom horizontal antenna and a middle horizontal antenna disposed between the top antenna and the bottom antenna at a separation s from each antenna, or, the antennas include a bottom vertical antenna, a bottom horizontal antenna, a first middle horizontal antenna and a second middle horizontal antenna oriented substantially orthogonally to the first middle horizontal antenna. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36)
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Specification