The Scanning Electron Microscope
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- čas přidán 28. 02. 2014
- Scanning Electron Microscope
- Main components
- Basic principle
- Practical procedure
- Imaging of surfaces and chemical analysis
Responsible for this video: Prof. Dr.-Ing. Rainer Schwab, Hochschule Karlsruhe (Karlsruhe University of Applied Sciences), Germany - Věda a technologie
I'm amazed they can see the image in real time. I always imagined the image taking extraordinary long amounts of time to process.
me too
probably that was true until recently?
prolly coz computers got faster and can process data faster :) now and still improving :) next thing you know you will carry a supercomputer in your wristwatch ;)
The higher resolution images require a slower raster.
I have worked on Stereoscan 250/600/... in the 80', we have always been able to get a "television" frequency for "low" resolution. Than, when it is about to take a picture, you lower the beam current and the scanning speed.
It blows my mind that somebody figured all this out.
The interesting part is that someone can make a low quality one in his/her garage with only a couple thousand dollars in materials.
So much of this vid is theory sonic. Don’t be too mind blown .. damn deceivers
IKR
@@garethbaus5471 That's exactly what I'm looking for. Do you have a link to some online resource for that?
@Jay Izzett Yeah I was thinking about that why sucking some electrons will produce the corresponding image? I bet there'r massive image processing going on in the background so actual image is impossible?
best explanation of electron microscope on youtube
yup
exactly, it's not just some shapes from powerpoint thrown together to represent what's going on... you actually get to see the experiment being conducted/hardware being used - from start to finish.
If only explanations of concepts were as pedagogically considered & realised like this, a lot of natural-physical science would be easy to understand, then you science literacy wouldn't be as difficult.
I thought the same Time2Split. This could have been a dull presentation where my mind would wander. This was much better.
Good explanation,thank u
@@umamaheewaripolinati6752 so is there x rays detection
If theres ever an apocalypse im just gonna break into a lab with one of these and play around until i get killed
why dont you just buy one
@@can_uysal Probably because those really high-tech ones are $60,000+.
@@Shock_Treatment probably im just joking
SoulsOfWolves lot more than that
@@nikolausdeems1922 Plus the Lab you have to set up
A great explanation for people without Engineering degrees. Thank You
Thank you for the fine job explaining the basics of how a scanning electron microscope works, including the great pictures. Cheers!
Great video. I actually ran one quite similar back in the early 1980's while working at a semiconductor manufacturer in San Jose - on Bubb road near Deanza college. I took step coverage micrographs of mil-spec parts along with the occasional insect. Wolf spiders up close have really big fangs! and bees eyes are incredible. But you need to be very careful or you can set them on fire and really mess up the internals - takes hours to clean and re align the collumn.
wow! that's really interesting
It can catch fire even in a vacuum?
@@justintan7548 Yes, as long as an oxidizer is present things will burn in either a vacuum or underwater. Ever seen underwater welding or a rocket motor in space? Just think how hot a concentrated electron beam can get...
Clear very good explanation. Thank you. I used SEM in 1969 at RWTH Aachen for my Doktor work to study surface of iron ore after reduction with CO and H2. It revealed iron whiskers in different shapes and sizes and explained reason for abnormal swelling during reduction. Though I used it in 1969 today I understand with more clarity how SEM works from your video. Thank you.
Answer to "Clear very good explanation. Thank you. I used SEM in 1969 at RWTH Aachen for my Doktor work to study surface of iron ore after reduction with CO and H2. It revealed iron whiskers in different shapes and sizes and explained reason for abnormal swelling during reduction. Though I used it in 1969 today I understand with more clarity how SEM works from your video. Thank you." Thanks for the information. The work you describe is an excellent application for SEMs.
@@MaterialsScience2000
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very nice and clear presentation. The metal analysis section was a nice bonus!
i have waited too long to watch this video, only found it just now, great presentation of information!! thank you
The finest and exact explanation of working of an electron microscope ever!
well explained, sir. easy to understand, very good resolution n very systematic operation!
Beautifully illustrated and awesomely shown.
Amazing technology!
Great presentation!
I know this instrument. You did a very good job of this presentation. I watched the whole thing.. great.
Electron scanning microscope reminds me of a very similiar concept: like an upsided down vaccum electron tube, as in TV scanning cathode ray tube, but with more complicated controls inside to examine the specimens on the plate. Thanks to quantum mechanical physics!
Answer to "Electron scanning microscope reminds me of a very similiar concept: like an upsided down vaccum electron tube, as in TV scanning cathode ray tube, but with more complicated controls inside to examine the specimens on the plate. Thanks to quantum mechanical physics!" Yes, there are many similarities!
Thank you! Very education and illustrative. Very clearly explained.
Never would've imagined the microscope is moveable and magnifyable in real time. Holy shit.
+1
The image is much worse in realtime mode though, due to the practical and physical limitations. All SEMs have a high quality acquisition mode, which can take snapshots with good(presentable) resolution. Such scans take many seconds to complete, but you can get many megapixels out!
You are happy that this is real? Looks faker than elon musks "car in space"...
Same. I've taken at least 2 classes that taught electron microscopy but never knew you could get a real time image like that! Incredible!
@@evolutionCEO Skepticism for the sake of skepticism isn't cute. Why do you think it's fake? Like for real, give me a reason. Because the image is too perfect?
Thanks for providing an actual hands-on explanation of SEM .... to be frank, I did have an idea of what it does, but I think now I have a clear understanding of how it works too from this video 👍
Nice explanation. Very useful to understand whole construction and working of SEM.
I've seen one been used in real time
It is absolutely mind blowing
8:46 When your nearly $1,000,000 scanning electron microscope is run by Windows 3.1, LOL.
It's clearly Windows 2000. 3.x had up and down arrows for minimizing and maximizing windows and it had the dropdown context menu on the upper left. Anyway, the video is obviously from the 2000s.
Muonium From 2011
the older the windows the more stable it is, that's what you want when running simple applications
Doctor and scientist doesn't want update in middle of research.
🤣
great job, crystal clear
The non-destructive chemical composition detection due to the type of emitted x-ray is freaking brilliant. Pieces of the puzzle become illuminated once you begin to construct the picture.
When I win the lottery I am going to buy one of these.
When I was an ojt for a semicon company. We have this kind of microscope use for product / failure analysis. I miss using this machine.
I always imagined a mad scientist in a hazmat suit using a electron microscope and here she is.
Thanks a lot !!
Explained really well !! 👍
I worked with an SEM as part of my microbiology degree. Brilliant piece of kit.
Thank you for sharing this!
Very interesting and very beautiful operator!
Beautiful video, thanks.
LOL, great i worked in a EM facility lab for ten years, can't get enough of them!
Nice & neat work, thanks a lot!
Excellent video. Very interesting and informative video.
Best video explanation on scanning electron microscopy.
Thank you very very much! it was a great detailed clear explanation! i really appreciate it :)
J.J Thompson must be smiling from the heaven.
Superb presentation!
Thanks for the animations
Just perfect explanation
6:33 On the surface of the weld, it looks calm and ready.
theres vomit on his already
You can stop bleaching your hair now. Hes a has been. Just another mumbling left snowflake pushover lol
great explanation! thanks a lot
Amazing conceptual explanation and demonstration
This video is wonderful, Thanks for preparing and sharing it
Thank you for this excellent explanation!
Nice lecture on scanning electron microscopy .... thanks for ur adorable lecture .
Appreciate the presentation. A good overview.
Nice & well explained. Thanks a lot.
I never had such explanation of electron microscope before!
Wow! This is truly amazing...I love it😎
more than amazing explanation
Beautiful content... Really amazing sir...
Sucha!! nice explanation loved it.❤
Mind blowing clear explanation again thank you sir
Very informative explanation! Thank you!
Great video explanation.
Excellent explanation!
fascinating! this is so cool
Best explanation of electron microscope
that is a cool looking micro scope
This video is a masterpiece!
Thank you, this is very helpful in Police work, always.
Superb what a explaination bro electron microscope costs more than a Lamborghini so we have to thank him because he made us to watch this microscope
beautiful. thanks.
Very Informative Video.
Congratulations! this video is quite helpful
Thank you very well explained and animation 👍
best lesson on youtube
Thanks a lot for Brief explanation of SEM.
Excellent post.
Excellent explanation of electron microscope. Thanks a lot.DrRahul Rohtak.India
beautiful explanation!!!!!!!
so fascinating hope i can use it..
nice demonstration thanks..
Looks really easy to use.
Amazing!
These things are so much fun to play around with.
If you've done so, I envy you more than you can fathom !
Very informative. And what a pretty SEM user!
Awesome!
What a GREEEATTTTTT explanation!!!!! Now I'm like 300 thousand steps ahead to use SEM in my investigation!
Thank you it was so useful
Great Video
Useful and informative video
Very nice explanation.
superb explaination
wow so informative!
Best explanation.
Very well explained. Thank you!!
Thanks
Dr. Surender
Excellent.
Thank you so much 💖💖💖
Fantastic.
Wonderful explanation of SEM
Very good explanation
I wish I could see it it in person and use it like her 😭! I just used the light microscope in my schools biology lab and It was fantastic!!!! Idk how amazing it would be to see through a microscope with the magnification of 250000 times !!!!
Thanks so much, very detailed and explains lotts of stuff :)
Excellent I like your video.
the stuff the people do is unbelieveable... what a beautiful technology
very informative one. Animations are excellent.. great work... guys