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Article #96Re: nasa-celebrates-successful-mars-landing
From: Geoff
Date: Mon, 13 Aug 2012 05:17
Date: Mon, 13 Aug 2012 05:17
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>>Think 12-year old and up. > > What I'm looking for would be analogous to using an ice > bath for temperature calibration. In almost every way, > temperature calibration is difficult. That is, everywhere > except for ONE temperature. And there, it's easy and cheap > and any idiot can do a decent job no matter how clumsy they > may be. And single point temperature calibration is better > than nothing at all. > > Kind of like that. It needs to be cheap and idiot proof. > I'm not holding my breath. But that doesn't mean I've > stopped looking, either. I just don't think it is in the > cards, yet. > > Jon > Traceable intensity calibration even to 1%T is not easy. You could simply aquire some cheap pseudo neutral density filters such as cheap sunglasses, prefereably with a flat lens, and ask if you can scan with a local uni's Uv-Vis spectrometer, in either absorbance or %T mode. Then armed with a reference, you can do useful %T work. This assumes using a continuum type source though through your mono. (If your aim is to analyse the light itself rather than samples then disregard.)
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From: Geoff <public@email.com>
Newsgroups: sci.electronics.design,aus.electronics,comp.arch.embedded
Subject: Re: nasa-celebrates-successful-mars-landing
Date: Mon, 13 Aug 2012 05:17:57 +0000 (UTC)
Organization: Your Company
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