PCB of a circuit used for signal processing of a Rogowski coil (made by LEM). The main switch selects range (sensitivity). LED shows that the device is turned on. Connection to the coil is on the right (black and red), connection to the measuring instrument on the left.
signal_processing_for_rogowski_coil_magnetica.jpg
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S. Zurek, Encyclopedia Magnetica, CC-BY-4.0
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