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Posted By: SuomipoikaWhat is this guy measuring and writing down?ETA: Thank you Suomipoika!
http://img706.imageshack.us/img706/4527/steornguymeasuring.png
Posted By: SuomipoikaI think the guy has written these numbers in the middle column:
447
465
473
464
465
462
... and the rest is quite unclear.
Revolutions per minute. Could it spin that fast?
Posted By: dareka1And? Anything of interest on the pad? I'd guess it was just the rotations a minute for each of the three orbos?
Posted By: mensorIts like that episode of lost!! hahahah!
Posted By: genesisPosted By: SuomipoikaI think the guy has written these numbers in the middle column:
447
465
473
464
465
462
... and the rest is quite unclear.
Revolutions per minute. Could it spin that fast?
well it fits with Al's calculations on reedswitch brakedown and 16hour orbo rundown...
Posted By: alsetalokin
Er, you're joking, right? I "assumed" 400 rpm for those calculations.
Since it looks to me to be in that ballpark on the video. Someone claimed 2000 rpm but that is clearly bogus.
The ~2 million cycles MTBF for a typical reedswitch is a good estimate though.
Posted By: genesis
no you assumed 400...it went up to 21h....now we know the first windown was about 16h....what would the rpm's be then?
Posted By: alsetalokinPosted By: genesis
no you assumed 400...it went up to 21h....now we know the first windown was about 16h....what would the rpm's be then?
if the switch fails at 2 million cycles, we have 2000000=k(400)(21), and 2000000 = k(x)(16).
So, k(400)(21) = k(x)(16)
x=(400)(21)/16
x=525
So at 525 RPM the reed switch would reach 2 million cycles at 16 hours.
Posted By: alsetalokinPosted By: dareka1And? Anything of interest on the pad? I'd guess it was just the rotations a minute for each of the three orbos?
Looks like data, doesn't it? But it isn't.
You would need the time of observation, the unique device number (there are several being swapped around, right?), and the RPM reading for that time and device. So at least 4 columns, one for time and 3 for the "shelf" locations, and horizontal markers or something else like that to indicate when a device is changed for a different one, on the same shelf.
What's on that pad is a bunch of apparently useless numbers. Which are times? Where are the unique device designations? And so on and so forth.