How Good Is Your Ground?

An article in EE-Evaluation Engineering, as passed along by a client. The article is by Vladimir Kraz, Credence Technologies, and J. E. Patrick Gagnon, Texas Instruments. Good piece.

My comment: the article is written from the perppective of a controlled environment (i.e. – semiconductor test, wafer fab, etc) where there is a lot of thought and investment in a good, controlled, ground plane / grid / system – and the goal is to get connected to this ground plane as solidly as possible. For a lot of the systems that I work with (i.e. – medical imaging) there is no deliberately conceived ground system – so things are a lot murkier. If one is trying to break up problematic ground loops / paths, the last thing one might consider is improving the system coupling to the outside world….