Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With waveguide or long line
Patent
1986-07-30
1989-05-09
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With waveguide or long line
324 73PC, 324158F, 324158P, 324 725, G01R 2104, G01R 3102
Patent
active
048292389
ABSTRACT:
Electromagnetic emission from a printed circuit board is monitored by energizing the board while it is located adjacent an array of electromagnetic emission measuring probes. The probes are successively addressed and currents induced in the probes are measured at a receiver. A memory map of the electromagnetic emission as a function of board position is generated and is displayed together with the circuit board layout so that regions of high emission level can be identified in the circuit. Each probe of the array is a series connected pair of wire loops, the planes of the loops being perpendicular to each other and to the plane of the array.
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IBM Technical Disclosure Bulletin, vol. 19, No. 8, Jan. 1977, p. 3182, New York, U.S.; A. H. Nay et al.: Test System for Logic Cards.
Goulette Richard R.
Greenfield Raymond L.
Xavier Stanilus K.
Eisenzopf Reinhard J.
Nguyen Vinh P.
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