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Prikvačeni tweet
Looking for a 10 minute introduction to electron microscopes? The talk I gave at
@hackaday#supercon is now up. I cover what SEMs and TEMs are, what they are good for, and some more advanced usuage modes for both. If you have any questions feel free to ask!https://twitter.com/hackaday/status/1097556711399936000 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Rotating the scan changes the nature of the noise suggesting a it's directional in nature, so one of the alignment/scan coils or a 160hz field in x or y.pic.twitter.com/ipX0QjUuhD
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Starting a LN2 transfer be like let me play you the song of my people. *Volume up*pic.twitter.com/JW0BE0KQbe
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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@sarahdcady does anything in NMR use 160hz? I'm backed up to a NMR lab with this SEM install...pic.twitter.com/cq5tKndRyB
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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It's constant scale at different working distances and so it could be from in the electronics or mechanical.
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So I should specify I'm looking for something vaugly sine wave here. Specifically the problem is interference causing a ~5 nm defection in the SEMs beam. It's in a field cancelation system so straight up stray field is unlikely.
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So anyone have any ideas as to where 160 hz interference would be coming from or common uses for 160 hz?
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You never know what you are going to find in an old water chiller... This was *after* I had flushed the tank out as well.pic.twitter.com/erPGdezu5D
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Oh yeah what could possibly go wrong installing a SEM under this bundle of ac.pic.twitter.com/AbFv5dUiZj
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Tfw you need a 26' truck to move a SEM .5 miles. Literally just down the street.pic.twitter.com/BfV5PiXuJ3
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How to hack together a way of getting a SEM off a vibration isolation platform without any of the right tools: a story in 4 parts. I did have to buy the pallet jack that morning and the person at Home Depot was curious why I needed that much wood cut. It worked great in the end.pic.twitter.com/xyNFh7aJBr
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Adam McCombs proslijedio/la je Tweet
Check out this 3D print on fabric under the microscope by
@sophywong ! happy#microscopeMonday !
https://twitter.com/hackadayio/status/1206622560923901954/photo/1pic.twitter.com/T1PK1boGkV pic.twitter.com/jZkTC6wbbr
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And this is what it looks like when no one cares about good cable management.pic.twitter.com/Yy8AFpLkhw
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This is the point ground on a Philips EM400 TEM built in the 70s. They were very adimant when it came to advoiding ground loops.pic.twitter.com/jXl0yI8NaO
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This is what the water cooled lens driver bays in the JEOL TEMs tend to look like. The JEOL wiring shop really takes pride in their work.pic.twitter.com/gvvlbBLC48
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And now to contrast that with the current state of the rest of the control console. I haven't even connected the column and it's already in this mess. All of this is getting pulled out and cleaned.pic.twitter.com/uXxSjFeuRc
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Apparently I'm done being productive tonight so here is more photos of the wiring on my SEM.
@difluorine might appreciate it.pic.twitter.com/mpDwcVUO4E
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I appreciate your appreciation of good cable management.https://twitter.com/difluorine/status/1206445451894898688 …
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Carefully thought out cable management is way to satisfyingpic.twitter.com/D0NEimfNDz
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n⁰, HV, STM, and other hardware shenanigans. He/him.