Lock picking involves manipulating small components. Small metal components, which are conductive, and would image well in a scanning electron microscope. And it just so happens that we’re probably the only hackerspace with a working SEM.
Tag Archives: Sem
Lock Picking and SEM
SEM, EDX and fun with liquid nitrogen
PS:One’s scanning electron microscope came with an Oxford Isis EDX detector that we were told was non-functional. After a little poking around, I discovered that the replacement power supply which supposedly didn’t work was shipped from London, where the default power is 240V. After changing the voltage, the computer suddenly recognized the electronics, and it passed all the self tests. That looked like a good sign, so the next step was to acquire liquid nitrogen, which is needed to cool the detector.
Fortunately, one of our members owns NFC, a company that, among other things, sells liquid nitrogen. He loaned us a dewar of LN2 so we could test it out. After transporting it back to the space, I asked Everett to watch from a safe distance and let me know if anything was spilling while I filled the dewar attached to the SEM. He took some video of the process. The plastic funnel I used was cracking as I was pouring, which in hindsight wasn’t that great of an idea, so maybe we need to find another solution here….
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Pictures from the Scanning Electron Microscope
A few nights back, Brian and I took some images from the SEM. We exported them into TIF format, and then copied them via Sneakernet, a.k.a. using 3.5″ floppy disks and a portable USB floppy reader. I converted them into .png files. Click them for full 1024×768 resolution, the limit of the Leica image capture board. I’m very happy with how they turned out.
This is the top of a metallic pin or electronic contact, showing what appear to be machining marks as well as what looks like a good deal of surface contamination. Note the scale showing 100 microns.
Scanning Electron Microscope
On Monday the 18th, I learn that yes, the donation was approved, but with a catch: It had to be moved on Saturday the 23rd!