Hackers' Pub

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`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
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`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

Graham Sutherland / Polynomial @gsuberland@chaos.social

6/4/2025, 10:46:41 AM

Public

anyone happen to know how much noise you typically get from a slip ring passthrough, as the wipers slide over the contact surface?

I want to measure the change in capacitance across a small circuit being rotated at different RPMs, and a slip ring would be the most convenient way to get the measurement, but I'm worried that the wiper noise will make it impossible to measure the delta since I expect the delta will be a few tens of pF.

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