MadSci Network: Engineering |
Often when I set up equipment to make highly sensitive electrical measurements for my research, noise is a constant problem. Over the years I have learned how to deal with noise problems by following a certain set of rules, such as avoiding ground loops. However, no one has ever explained to me the precise physical basis for ground loops. Now clearly ground loops are not a problem when everything is grounded with very thick wire. However, extremely think wire is often not practical. Under these circumstances, why exactly does the topology of the ground bus matter? Also, it would be extremely helpful to me to hear a physicist's version of the best way to ground sensitive electronic equipment. Thanks for your time.
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