Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Analysis of complex waves
Patent
1991-09-26
1993-05-11
Wieder, Kenneth A.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Analysis of complex waves
324619, 324 7626, 342100, G01R 2316, G01R 23173
Patent
active
052104834
ABSTRACT:
A measuring unit converts a measuring signal into an intermediate frequency band of a predetermined bandwidth and detects the intermediate frequency band while a reception frequency is set variable by variably controlling a local oscillation frequency of a local oscillator. A waveform memory stores the magnitude of a detection signal output from the measuring unit in correspondence with the frequency. An analyzing unit analyzes a frequency component included in a signal to be measured, on the basis of a storage value of the waveform memory. An analysis target frequency data setting unit sets frequency data of a desired analysis target frequency or interval frequency data thereof. A sweep control unit changes the reception frequency of the measuring unit into the desired analysis target frequency corresponding to the frequency data set by the analysis target frequency data setting unit and outputs an address signal corresponding to the received analysis target frequency to the waveform memory every time a signal synchronized with an ON/OFF change of the signal to be measured is received.
REFERENCES:
patent: 4007423 (1977-02-01), Dickinson
patent: 4802106 (1989-01-01), Saito
patent: 4845691 (1989-07-01), Itaya
patent: 5038096 (1991-08-01), Obie
patent: 5075618 (1991-12-01), Katayama
Amamoto Narushi
Katayama Aiichi
Oka Hiroyoshi
Sato Takehiko
Anritsu Corporation
Solis Jose M.
Wieder Kenneth A.
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