Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With waveguide or long line
Patent
1998-05-05
2000-05-16
Ballato, Josie
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With waveguide or long line
324149, G01R 2304, G01R 106
Patent
active
060641908
ABSTRACT:
A hand held detection device for detecting electromagnetic waves at at least one predetermined frequency has an elongated conductor member having a bottom end portion for grasping by a hand of a user and a top end portion, the elongated conductor is configured to function as an antenna at the predetermined frequency. An LC-resonance circuit is supported on and electrically connected to the top end portion of the elongated conductor and the LC-resonance circuit is tuned for accepting the at least one predetermined frequency. A wave detection circuit is supported at the top end portion of the elongated conductor member. The wave detection circuit includes a rectifier diode for rectifying high-frequency alternating current received in the LC-resonance circuit via the elongated conductor to produce a direct current. The wave detection circuit also includes an indicating means for indicating a presence of a direct current produced by the rectifier diode, the indicating means and the rectifier diode are serially connected to form a series circuit, and the series circuit is connected across the LC-resonance circuit. Optionally, a coil may be substituted for the LC-resonance circuit.
REFERENCES:
patent: 4424483 (1984-01-01), Aslan
patent: 4431965 (1984-02-01), Aslan
patent: 4692685 (1987-09-01), Blaze
Ballato Josie
Kobert Russell M
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