Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1989-05-01
1991-06-18
Williams, Hezron E.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
455 67, 455115, G01R 2316, H04B 1700
Patent
active
050252089
ABSTRACT:
For fast measurement of radio-frequency interference voltages (also called RFI voltages) within a predetermined frequency range in conformity with rating standards, the maximum and minimum peak voltage levels are measured during tuning of the frequency range; when the maximum peak voltage level exceeds a predetermined limit value,the tuning process is interrupted and a quasi-peak measurement is performed at this instantaneous frequency.
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Track and Hold, Circuit Description, Hewlett-Packard Manuel 8568, pp. 8-223-8-224, 8-234.
C.I.S.P.R. Specification for Radio Interference Measuring Apparatus and Measurements, CISPR (1987).
Milde H., "Messung von Storsignalen" Radio Fetnsehen Elektronik, vol. 21, No. 16, 1972, pp. 534-536.
Coenning F., "Automatic Level Measuring System for Frequencies Between 200 Hz and 100 MHz", Transactions on Instrumentation and Measurement, vol. DM-20, No. 4, 1971, pp. 225-230.
Arana Louis M.
Rohde & Schwarz GmbH & Co KG
Williams Hezron E.
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