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B_H_LOOP_DISPLAY

2016-12-16 15:23  
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B_H_LOOP_DISPLAY
Low-cost dual opamp circuit allows display of hysteresis loop on call-brated XY oscilloscope. Two windings are placed on core to be tested, with opamp of fluxmeasuring system connected to secondary for deriving vertical deflection input representing flux B. Artide gives design equations and details of circuit operation and use.-D. A. Zinder, X-Y Oscilloscope Displays Hysteresis Loop of Any Core, EDN Magazine, Feb. 5, 1975, p 54-55.