Non-linear junction detector
First Claim
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1. A non-linear junction detector comprising:
- a transmitter for emitting an illuminating signal at a power output level;
a receiver for receiving reflected signals;
means for determining a signal strength of said received signals;
control means for automatically varying the power output level of the transmitter so as to drive the signal strength of said received signals towards a predetermined value; and
means for providing to an operator an indication of a current received signal strength adjusted by a factor so as to compensate for any adaptation in the actual transmitted power output level made by said control means.
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Abstract
A target junction is illuminated with energy at a fundamental RF frequency and reflections from the non-linear junction are analyzed to determine the type of junction detected. The power output level of a transmitter emitting the illuminating signal is automatically controlled so as to drive the signal strength of the received signals towards a predetermined value, e.g. a minimum threshold value. An indication of the current received signal strength, adjusted by a factor so as to compensate for any automatic adaptation in the actual transmitter power output level, may be provided to an operator.
76 Citations
18 Claims
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1. A non-linear junction detector comprising:
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a transmitter for emitting an illuminating signal at a power output level;
a receiver for receiving reflected signals;
means for determining a signal strength of said received signals;
control means for automatically varying the power output level of the transmitter so as to drive the signal strength of said received signals towards a predetermined value; and
means for providing to an operator an indication of a current received signal strength adjusted by a factor so as to compensate for any adaptation in the actual transmitted power output level made by said control means. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of detecting non-linear junctions, comprising:
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transmitting an illuminating signal at a first power output level;
receiving reflected signals from a non-linear junction;
determining a signal strength of a selected component of said received signals;
automatically varying the first power output level to a second power output level so as to drive the signal strength of said selected component towards a predetermined value; and
providing to an operator an indication of a current received signal strength adjusted by a factor so as to compensate for any adaptation in the actual transmitted power output level.
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12. A non-linear junction detector comprising:
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a transmitter for emitting an illuminating signal at a power output level;
a receiver for receiving reflected signals and determining a signal strength of said received signals; and
an output for providing a representation of the received signal strength to an operator, wherein the transmitter automatically varies the power output level so as to drive the signal strength of said received signals towards a predetermined value, and wherein the output provides an indication of a current received signal strength adjusted by a factor so as to compensate for any adaptation in the actual transmitted power output level made by the transmitter. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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Specification