**the Hearth** @Felthry@awoo.space · Feb 25, 2019, 20:49

**the Hearth** @Felthry@awoo.space · Feb 25, 2019, 20:49

the Hearth @Felthry@awoo.space

Feb 25, 2019, 20:49

We have been presented with an engineering problem that we are not sure how to solve: we need to be able to measure high-frequency ripple current (up to several MHz) on a DC power rail that can be anywhere from zero to 500 volts, and get that in a form that can be fed into a logging device. The DC component of the current can be up to 100 amperes. Any engineers here who can give some advice?

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:53

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:53

Feb 25, 2019, 20:53

Ren - Moved to chitter.xyz @Nine@computerfairi.es

@Felthry i'm smelling burned copper wire from here and it's kinda weirding me out

**the Hearth** @Felthry@awoo.space · 2019-02-25T20:53:43Z

the Hearth @Felthry@awoo.space

@Nine I assure you we know what we're doing, it's only the measurement part we can't find a good solution for!

Feb 25, 2019, 20:53 · · · ·

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:54

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:54

Feb 25, 2019, 20:54

Ren - Moved to chitter.xyz @Nine@computerfairi.es

@Felthry oh no I believe you know what you're all doing, that's fine. I just... just thinking about that much voltage and current... i'm like.

i mean i don't know engineering at all but those numbers registered in my head immediately as "DO NOT LICK"

**the Hearth** @Felthry@awoo.space · Feb 25, 2019, 20:55

**the Hearth** @Felthry@awoo.space · Feb 25, 2019, 20:55

Feb 25, 2019, 20:55

the Hearth @Felthry@awoo.space

@Nine ahah, well, that's probably a good idea

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:56

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:56

Feb 25, 2019, 20:56

Ren - Moved to chitter.xyz @Nine@computerfairi.es

@Felthry to be honest a lot of things my brain assesses as "is it safe to lick? no? DO NOT." "okay brain what about touching or going near or poking with things" "DO. NOT. LICK." "...that's not" "DID I STUTTER!?" "okay jeez"

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:57

**Ren - Moved to chitter.xyz** @Nine@computerfairi.es · Feb 25, 2019, 20:57

Feb 25, 2019, 20:57

Ren - Moved to chitter.xyz @Nine@computerfairi.es

@Felthry i suppose it's worrying to me because i'm not sure why my brain immediate thought is "you shouldn't lick that". granted i used to really not be able to resist licking 9 volt battery terminals. even though I hated it. but I liked it too.

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