Apparatus for measuring electric field radiation from living bodies
Abstract
Abstract AN ANTENNA, ELECTRICALLY SHORT IN COMPARISON TO A WAVELENGTH TO BE RECEIVED, IS POSITIONED IN CLOSE PROXIMITY TO A LIVING BODY TO RECEIVE THE ELECTRIC ENERGY RADIATED THEREFROM IN THE FREQUENCY RANGE OF FROM 0 TO 3 KHZ. AN IMPEDANCE MATCHING DEVICE IS CONNECTED DIRECTLY TO THE ANTENNA TO CONVERT THE RECEIVED ENERGY INTO ELECTRICAL SIGNALS FOR PROCESSING. THE AMBIENT NOISE COMPONENTS ARE REMOVED FROM THESE ELECTRICAL SIGNALS, EITHER BY PHYSICALLY SHIELDING THE BODY UNDERGOING TEST AND THE ANTENNA, BY EMPLOYING A SECOND SIMILAR ANTENNA TO RECEIVE THE AMBIENT NOISE BUT NOT THE SIGNAL RADIATED FROM THE BODY UNDERGOING TEST AND ELECTRICALLY COMBINING THE SIGNALS FROM BOTH SAID ANTENNAS TO ELEMINATE THE AMBIENT NOISE COMPONENTS, OR BY EMPLOYING A TUNED FILTER, FOR THOSE AMBIENT NOISE COMPONENTS HAVING A PERIODIC WAVEFORM. THE RESULTANT ELECTRICAL SIGNALS ARE AMPLIFIED AND PROCESSED TO DISTINGUISH AMONG THE VARIOUS SIGNALS RADIATED DUE TO THE BIOELECTRIC ACTIVITY OF THE LIVING BODY.
Inventors
- 👤 Charles G Brown
- 👤 Leo Thomas Rauterkus
- 👤 Charles E Walker
Bibliographic Details
Claims Analysis
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