2015 BFY II Abstract Detail Page
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||Stabilization of an NMR elctromagnet at low cost
||The current supplied by our unstabilized power supply varies approximately 4 parts in 10^-4 limiting its use for NMR experiments. We present details and results of a method to relatively easily externally stabilize a 12in, 1T electromagnet powered with a unstabilized power supply. The magnet current is measured with a high power precision resistor to feedback stabilze the current with an external opamp circuit. The power supply is not modified.
University of Pennsylvania
209 S 33rd St
Department of Physics and Astronomy