Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1988-08-30
1990-12-04
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 725, 324158F, G01R 106, G01R 3102
Patent
active
049756397
ABSTRACT:
A test head comprising an electrically conductive cylindrical member for coupling to a device under test, a first path for connecting a first type of signal with the device under test, the first path being located outside the cylindrical member, and a second path for connecting a second type of signal with the device under test, the second path being located inside the cylindrical member, hereby preventing interference between signals of the first and second types. The first type of signal may be a digital signal and the second type of signal may be an analog signal.
REFERENCES:
patent: 4138643 (1979-02-01), Beck et al.
patent: 4740746 (1988-04-01), Pollock et al.
Hiwada Kiyoyasu
Tamamura Toshio
Hewlett--Packard Company
Karlsen Ernest F.
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