Isotopic broad-band survey meter

Details Isotopic broad-band survey meter Isotopic broad-band survey meter

1980-08-27

1982-12-21

Tokar, Michael J.

Electricity: measuring and testing

Testing potential in specific environment

Voltage probe

324140R, G01N 3102

Patent

active

043651925

ABSTRACT:
A monitor for measuring the field strength of RF radiation is disclosed. A set of three mutually orthogonal antennas sense the total field strength. Digital linearizing and scaling circuits provide an output equal to the sum of the square of the field components. In the preferred embodiment, the digital circuitry includes a control or zero channel which provides a zero level control signal which is processed to provide a correction signal to the analog to digital conversion circuitry to remove the effects of noise, pickup and drift on both the transmission line, which connects the antenna and the monitor, and on the analog electronic circuits of the monitor.

REFERENCES:
patent: 3662260 (1972-05-01), Thomas
patent: 3750017 (1973-07-01), Bowman
patent: 3889185 (1975-06-01), Wojtasinski
patent: 4023408 (1977-05-01), Ryan

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