Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Self-calibration
Patent
1987-05-28
1989-02-07
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Self-calibration
324 725, 341118, G01R 1906, G01R 1900
Patent
active
048034231
ABSTRACT:
A high frequency probe for a logic analyzer adapted to operate with different types of logic circuits, and signals which may or may not be superimposed on a dc component. After an input capacitance, a high frequency amplifier feeds both an output terminal and a compensator circuit which compares the deviation between low frequency or dc components appearing at the input and output terminals, and compensates for the deviation by reinjecting a signal at the input of the high frequency amplifier. Variable attenuation may also be also be included between the high frequency amplifier and the output terminal.
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"Study of Space Potential Matter", by Minami et al., Mem. Fac. Eng., Osaka City Univ. (Japan), vol. 16, 12/75, pp. 55-62.
Burns W.
Eisenzopf Reinhard J.
Franzblau Bernard
U.S. Philips Corp.
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