The Craftmans Shop > New from Old
Tidying Up An Analoy 1401 Alloy Analyser
awemawson:
Well done Steve, so at least that’s there on the web if any other mad fool is searching for data :thumbup:
It’s a great shame that my ‘originals’ of the circuits are out of focus (faxed) and incomplete. I’ve no idea how I found that chap in Michigan all those years ago, it’s a heck of a long way from here !
russ57:
Muzzer, I do have something very similar to that head visor which is great but sometimes I'd like a bit more magnification.
-russ
PekkaNF:
This is really interesting...Specially that sensor arrangement. Did I got it right?
1: There is a arc that heats sample metal hot enough to emit it's characteristic spectral output. Different materials emit different wavelenths.
2: There is a prism type contraption that fans out different light wavelenghts. Here wavlengths/spectral lines are physically spread out at different locations. ie. clolor wavelenth detection is not that important, but location/intensity.
3: There is a line scan camera, that is used to detect the wavelength as a postition of this fanned out light spectral lines and probably uses somewhat also intensity of these spectral lines.
Muzzerboy:
Russ - mine came with a selection of lenses (5?) and I find there's one (not sure which) that works nicely for me. I'm no longer caught between the work being too close (with glasses off) and too far away (with glasses on) where I can focus but can't make out detail. The alternative were those damned loupe things which drove me crazy. I must say it's been one of my better purchases!
awemawson:
--- Quote from: PekkaNF on February 12, 2021, 11:06:29 AM ---This is really interesting...Specially that sensor arrangement. Did I got it right?
1: There is a arc that heats sample metal hot enough to emit it's characteristic spectral output. Different materials emit different wavelenths.
2: There is a prism type contraption that fans out different light wavelenghts. Here wavlengths/spectral lines are physically spread out at different locations. ie. clolor wavelenth detection is not that important, but location/intensity.
3: There is a line scan camera, that is used to detect the wavelength as a postition of this fanned out light spectral lines and probably uses somewhat also intensity of these spectral lines.
--- End quote ---
Basically yes - the 'line scan camera' is a Charge Coupled Device in a single chip with 1728 individual elements spaced at 15 microns, conveniently making for a device almost exactly one inch long.
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