Object Detector and Method
First Claim
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1. An object detector for detecting elongate conductive objects, comprising:
- a transmitter arranged to generate a transmit signal; and
a transmit antenna, coupled to said transmitter and arranged to radiate said transmit signal;
whereinthe object detector is arranged to generate a detection signal, the detection signal being based on at least one characteristic of a portion of the transmit signal reflected by the transmit antenna; and
the at least one characteristic of the portion of the transmit signal reflected by the transmit antenna changes in response to movement of the detector in relation to a detectable object.
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Abstract
An object detector for detecting elongate conductive objects, comprising: a transmitter arranged to generate a transmit signal; and a transmit antenna, coupled to said transmitter and arranged to radiate said transmit signal; wherein the object detector is arranged to generate a detection signal, the detection signal being based on at least one characteristic of a portion of the transmit signal reflected by the transmit antenna; and the at least one characteristic of the portion of the transmit signal reflected by the transmit antenna changes in response to movement of the detector in relation to a detectable object.
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Citations
22 Claims
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1. An object detector for detecting elongate conductive objects, comprising:
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a transmitter arranged to generate a transmit signal; and a transmit antenna, coupled to said transmitter and arranged to radiate said transmit signal;
whereinthe object detector is arranged to generate a detection signal, the detection signal being based on at least one characteristic of a portion of the transmit signal reflected by the transmit antenna; and the at least one characteristic of the portion of the transmit signal reflected by the transmit antenna changes in response to movement of the detector in relation to a detectable object. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A method of elongate conductive object detection using an object detector comprising:
- a transmitter arranged to generate a transmit signal; and
a transmit antenna, coupled to said transmitter and arranged to radiate said transmit signal;
the method comprising;generating and transmitting said transmit signal; and generating a detection signal, the detection signal being based on at least one characteristic of a portion of the transmit signal reflected by the transmit antenna, wherein the at least one characteristic of the portion of the transmit signal reflected by the transmit antenna changes in response to movement of the detector in relation to a detectable object. - View Dependent Claims (22)
- a transmitter arranged to generate a transmit signal; and
Specification