https://hackerpaper.kaipfister.de/p/1302.6092/Collected HN comments and submissions linking this paper.enMon, 02 Nov 2026 11:16:22 GMThttps://news.ycombinator.com/item?id=7650926urn:hackerpapers:mention:1302.6092:7650926Sat, 26 Apr 2014 10:21:50 GMT<p>Isolating mains-powered devices sometimes is tricky, for example in one device of [1] we resorted to specially wound transformers with increased spacing to minimize capacitive coupling to mains/ground, accepting the resulting higher losses in the low-voltage power-supplies. If you want to research if &quot;ground loops&quot; are indeed of concern, try to inject them artificially (split up protective earth, feed in current from a function generator) and check the influence on your measurement, then you can quantify the &quot;ground loop rejection ratio&quot; of your setup. This will also tell you which…</p><p><a href="https://hackerpaper.kaipfister.de/p/1302.6092/">Paper and discussion history</a>. A mention is not an endorsement.</p>physics.ins-det