Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
mastodon.me.uk is one of the many independent Mastodon servers you can use to participate in the fediverse.
Open, user-supported, corporation-free social media for the UK.

Administered by:

Server stats:

516
active users

mastodon.me.uk: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.6

Adrian McEwen

Have spent most of today with a pair of oscilloscopes probing a rather sensitive formaldehyde sensor circuit trying to debug a source of noise.

That has included my colleague Paul generating plots like this one from the HPGL output of his old CRT 'scope, connected via an RS232 serial cable 😀

A graph looking very similar to an oscilloscope screen, showing a grid with two wavy traces running horizontally across the top of the display - one quite narrow vertically, the other much broader with a high frequency variation. The display has labels of the two traces as "C16=22pF" and "C16=0.1uF" and is showing 100mV/div
#weeknotes
Nov 21, 2024, 06:56 PM·Public·Web
0boosts·4favorites
Quiet public
Slash909uk

@amcewen oooh, HPGL! Our lab HP pen plotters all ran on that, and we did IC and PCB mask layouts with it from an overly complex HP BASIC package my colleagues and I maintained... happy days 😁 Also 'scope printouts and many other test diagnostics for the automatic on wafer test system we designed and coded.

I recall HP gear for microwave engineering was £££ and we did break a few things with code bugs moving the motorised stage around under the probes 🤪

ExploreLive feeds
About