Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With waveguide or long line
Patent
1984-05-14
1987-01-06
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With waveguide or long line
324258, 340600, 343703, G01R 2908, G01R 3302
Patent
active
046349693
ABSTRACT:
A passive safety probe for placement in a time varying magnetic field to alert personnel when the power density of high intensity electromagnetic fields reach and exceed applicable personnel safety limits. The probe senses the magnetic field present with a loop antenna. The loop antenna produces a voltage output in response to the magnetic field. The output voltage is linearized by a frequency dependent filter and rectified to provide a direct current output which is subsequently coupled to an attention getting indicating means such as a light emitting diode and/or a horn. When detected field voltage exceeds the threshold of the indicating means, a visual or audible response occurs, indicating that safe field levels have been exceeded.
REFERENCES:
patent: 3130368 (1962-01-01), Hoover
patent: 3182262 (1965-05-01), Schumann
patent: 3464010 (1969-08-01), Saul
patent: 3783448 (1974-01-01), Brodwin
patent: 3927375 (1975-12-01), Lanoe et al.
patent: 4032910 (1977-06-01), Hollway et al.
patent: 4338595 (1982-07-01), Newman
patent: 4431965 (1984-02-01), Aslan
Millivac Instruments, "Sensitive Precision RMS Millivoltmeter", MV-32A RMS oltmeter Specification.
Greene, F., "NBS Field-Strength Standards and Measurements (30 Hz to 1000 MHz)", Proc. IEEE, vol. 55, No. 6, Jun. 1967, pp. 970-981.
Edlin George R.
Snead Robert A.
Baker Stephen M.
Bush Freddie M.
Eisenzopf Reinhard J.
Gibson Robert P.
Lane Anthony T.
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