Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1992-04-13
1995-07-25
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
324 7629, 324 7711, G01R 1900, G01R 2300
Patent
active
054365562
ABSTRACT:
A signal detector and signal detection methodology is provided to monitor oscillatory signals to produce detector output in response to the presence of target signals having a frequency within a selected frequency range. The detector has input processing circuitry that receives the oscillatory signals and filters out those which do not fall within the selected frequency range to produce an input signal. This initial signal is processed by a Schmitt-Trigger to create a square-wave signal. The processing circuit includes a scaler sub-circuit to divide the square-wave signal by an integer, and an integrating sub-circuit integrates the resulting scaled signal to produce the intermediate signal. An amplification circuit has variable gain controlled by averaging the amplitude of the input signal by way of the control component so that the initial signal is amplified according to the original amplitude to produce a scaled replica of the filtered input signal. Sensitivity adjustment and visual and audible displays are used for the detector output.
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Martin Timothy J.
Solis Jose M.
Wieder Kenneth A.
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