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jonbruner

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CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells

lumafield.com
287 points·by jonbruner·10 bulan yang lalu·124 comments

How a car cigarette lighter works, in CT scans

lumafield.com
30 points·by jonbruner·2 tahun yang lalu·29 comments

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jonbruner
·10 bulan yang lalu·discuss
Scan time depends on material composition in the object you're scanning and your requirements for resolution. You can scan a dense steel object overnight to capture micron-level detail, or you can scan a plastic object in a few seconds to search for a known issue like a crack.

Battery scans are very fast; the scans in the report took less than a second. Total cycle time on a Triton CT scanner is under 5 seconds when you account for part handling.
jonbruner
·3 tahun yang lalu·discuss
Ha! I'm with Lumafield--we've actually done the same thing, scanning bags of Doritos, Cheetos, and Ruffles: https://www.lumafield.com/article/bite-into-doritos-ruffles-...

To answer the question about whether these are cleaned up, these scans aren't processed beyond what our software does automatically during the reconstruction. Industrial CT scanners are designed to scan a wider range of material densities than medical scanners. We use some copper filtration to scan parts with lots of dense materials, but no extra processing is required once we've reconstructed the model.