Method and apparatus for monitoring electromagnetic emission lev

Details Method and apparatus for monitoring electromagnetic emission lev Method and apparatus for monitoring electromagnetic emission lev

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.

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