| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jhondue123456 | "https://www.google.com/ " | Read more » | 21 days ago | |||
| stef | "Further to my previous replies, it may be possible to view the sun disk attenuated with the filters used by welders to view their work. I have not ..." | Read more » | about 6 years ago | |||
| Metamer | "I, too am trying to get spectral data of sun/sunsets. Would be interested to hear what you've learned " | Read more » | about 6 years ago | |||
| stef | "What I was alluding to is that with all of the filter attenuation, the cmos sensor was still overloaded. This can be seen in the spectra submitted..." | Read more » | over 6 years ago | |||
| Ag8n | "There are two approaches to this, the hardware and software. Sounds like you took care of the hardware end very well. Can you think of any softwa..." | Read more » | over 6 years ago | |||
| stef | "I have used photographic neutral density filters and have not been able to view the sun directly using the spec3 highly modified device. The attenu..." | Read more » | over 6 years ago | |||
| Ag8n | "Only one suggestion then. Sunlight can be strong. As a safety measure, partially block the sun and work your way up to full exposure. Might not ..." | Read more » | over 6 years ago | |||
| jsbonillam | "I am going to make and analyse the graphs with the wavelength and absorption. " | Read more » | over 6 years ago | |||
| Ag8n | "Please forgive the question, but what lines are you using and what method of analysis? Thank you for the information. " | Read more » | over 6 years ago | |||
| warren | "Oh, i don't know, but it looks very cool! " | Read more » | over 6 years ago | |||
| jsbonillam | "@warren The camera will be just part of the spectrometer. I am still considering whether to use LDRs (light depending resistors), as here http://ww..." | Read more » | over 6 years ago | |||
| warren | "How would you set up the spectrometer next to the other equipment, or the tracker? Are you using a raspberry pi camera as-is, as well, or just as p..." | Read more » | over 6 years ago | |||
| warren | "I think the Lego spectrometer's suitability for this is an open question, but the Raspberry Pi Camera v2 is very low noise and could be worth testi..." | Read more » | over 6 years ago | |||
| cfastie | "That's very clever. " | Read more » | almost 7 years ago | |||
| dsvilko | "Better than the vertical blur would be to simply resize the image to be 1 pixel tall (most resizing algorithms do this by averaging) and then again..." | Read more » | almost 7 years ago | |||
| stef | "@warren, Here is the link to my latest cam https://spectralworkbench.org/spectrums/99143# also in Sun sky tags the slit is ca 0.04 mm cam is the MS..." | Read more » | about 7 years ago | |||
| warren | "Can you link to your data directly? I think it's possible higher resolution could help, but there may also be other resolution issues such as the ..." | Read more » | about 7 years ago | |||
| cfastie | "That sort of worked: https://spectralworkbench.org/analyze/spectrum/4476. I cut out a 50 pixel tall horizontal slice of the Snowy Sky spectrogram ..." | Read more » | about 11 years ago | |||
| warren | "You know what we need? vertical averaging to smooth out noise. In live/waterfall mode, this'd be time averaging. For your spec, it'd just be averag..." | Read more » | about 11 years ago |