Distance measurement system
First Claim
Patent Images
1. A distance measurement system, comprising:
- at least one resonant circuit;
at least one magnetic element with predetermined magnetic properties;
a transmitter operable to transmit an electromagnetic pulse;
a receiver operable to detect oscillations emitted by said resonant circuit in response to said electromagnetic pulse; and
, an analyzer operable to analyze an amplitude envelope property of said oscillations, to thereby determine a distance between said resonant circuit and said magnetic element.
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Abstract
A distance measurement system, comprising at least one resonant circuit, at least one magnetic element with predetermined magnetic properties, a transmitter operable to transmit an electromagnetic pulse, a receiver operable to detect oscillations emitted by said resonant circuit in response to said electromagnetic pulse, and an analyzer operable to analyze an amplitude envelope property of said oscillations, to thereby determine a distance between the resonant circuit and the magnetic element.
6 Citations
26 Claims
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1. A distance measurement system, comprising:
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at least one resonant circuit;
at least one magnetic element with predetermined magnetic properties;
a transmitter operable to transmit an electromagnetic pulse;
a receiver operable to detect oscillations emitted by said resonant circuit in response to said electromagnetic pulse; and
,an analyzer operable to analyze an amplitude envelope property of said oscillations, to thereby determine a distance between said resonant circuit and said magnetic element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 19)
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18. A method for assembling a distance measurement system, comprising the steps of:
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placing a resonant circuit at a first location;
placing a magnetic element with predetermined magnetic properties at a second location;
providing a transmitter for transmitting an electromagnetic pulse to said resonant circuit;
providing a detector for detecting oscillations emitted by said resonant circuit in response to said electromagnetic pulse; and
,providing an analyzer for analyzing an amplitude envelope property of said detected oscillations, to thereby determine a distance between said first location and said second location.
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20. A method for measuring the distance between a first location comprising a resonant circuit and a second location comprising a magnetic element, comprising the steps of:
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transmitting an electromagnetic pulse to said resonant circuit;
detecting oscillations emitted by said resonant circuit in response to said electromagnetic pulse; and
analyzing an amplitude envelope property of said detected oscillations, to thereby determine a distance between said first location and said second location. - View Dependent Claims (21, 22, 23, 24, 25)
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26. A distance measurement system utilizing eddy currents for energy dissipation, the system comprising:
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at least one resonant circuit;
at least one magnetic element with predetermined magnetic properties;
a transmitter operable to transmit an electromagnetic pulse;
a receiver operable to detect oscillations emitted by said resonant circuit in response to said electromagnetic pulse; and
,an analyzer operable to analyze an amplitude envelope property of said oscillations as an indicator of eddy current induced energy dissipation, to thereby determine a distance between said resonant circuit and said magnetic element.
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Specification