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Killer deal on USB spectrometer! (update: legitimate!)

kecked

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I have a project for next summer. I want to capture the spectrum of lightning!
 



paul1598419

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You could likely get the same effect, much easier, by taking a spectrum shot of a HV arc. The larger the better.
 

kecked

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Just continuous log for a while during a night storm. Should be pretty easy if the spec reacts quickly enough.thinking I might use an Andor for that one.
 

paul1598419

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I'll be watching too see how it does. I'm using Spectrasuite, which is older OEM software. Not really familiar with Oceanview, so maybe you have options I don't. I hope it works out for you. My knowledge of andors is with respect to RAMAN spectrometers. I suppose they could be useful in transients like you are after. Let me know.
 

kecked

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Well I decided to go one farther. Going to try a photon counter set to a couple uv wavelengths of interest via a jobin monochromator and pmt setup. Tried it with xenon flash and it worked well. Yea won’t get entire spectrum in one shot but will be interesting. I want to look at the uv anyways. Might also set to triplet oxygen line in the red and the oxygen in the blue greens. My trigger is 2ns set to a second pmt with a moderate discriminatory level. Going to treat it like a fluoesecence experiment cuz that’s what it is. Never seen that published actually. Well I have 4 months to get it right.
 

Civitus

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Seems like a better product.. Not sure if
it's full of Hot Snot or not.

Jerry
Hi every one,
I got one of the new model. I can tell that it is really much better than the first version. it is really more sensitive, i made a test wt my students to compare both models, we got 117 +/- 6 more sensitive than the previous model.
It is more robust, it has a slit of 100um by default, but they made one for me with 75um (they also offer 25um). but because of the dimensions of the spectrometer, they told me that there are not that big differences between 25um and 75um.
I discussed with the guy behind these innovations, he told me that they are working on an other model even much better.
he assured me that the SMA Spectrometer model has been used by several universities, gemologists, schools .

i give a 4.5/5
 
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Civitus

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I found another very cheap spectrometer, also using a webcam sensor, but it is well-made and reviews are excellent.
Search for "i-Phos"
Hi FlatBroke,

I think that this is mostly a toy and made by a non professional. He is missleading, or in the best cases he ignores and does not know any thing about physics. This is what makes me think that it is a toy made by a hobbyist.
he speaks about Raman and stellar spectra. It is impossible to get with su device !
a braod range low cost webcame can not (what ever you do) get Raman spectra.
And for astronomy, it needs also a more serious detector.

I would like to suggest him to correct the description to not misslead potential buyers.

But, anyway, i am sure that it can be used a toy to see the approximate spectra of leds, lasers, ... a 1mm slit is just huge (200um is already too big and is rarely used).

I can say definitly a good toy, i may buy one for XMass for my nephew.

C
 




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