Graeme Gill wrote:
Making a usefully accurate spectrometer yourself is a non trivial exercise. Where does the diffraction grating come from, and how do you calibrate it ? To do it properly, you need access to laboratory grade standards or instruments to compare it to, and it would be all to easy to end up with a low accuracy instrument. (I thing some of the astronomy crowd have attempted this sort of thing, with some degree of success ?)
I'm not so sure. As a learning exercise, or to create an instrument with special capabilities, or as a start up venture for a company that intends to manufacture such things, it's a fine idea.
As an alternative to a commercial instrument, I'm not sure it really works out, unless your time and effort are very cheap.
Stephan.
