| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | "This is so exciting to see. @stef, would you be willing to post a response using the "Document your attempt to build this" button above the builds ..." | Read more » | about 7 years ago | |||
| stef | "@rthalman: Hey, I'm not complaining, your design got me going on the 3D printing thing. Insofar as to the Cam temperature, by turning off the autof..." | Read more » | about 7 years ago | |||
| rthalman | "@stef Thanks for trying out my plans. I also found that the slit width that was printed was sub-optimal. I made a narrower slit with aluminum duct ..." | Read more » | about 7 years ago | |||
| stef | "@rthalman, @warren I have replicated the design using the printer in my local library as well as the modification to the Life cam where I removed t..." | Read more » | about 7 years ago | |||
| warren | "Yes, that sounds right. I think the remaining issue was that unfortunately it wasn't clear if the RPi camera can be accessed via the browser webcam..." | Read more » | over 7 years ago | |||
| rthalman | "Warren, looking at your post (and specifically the size of the camera you are referring to, you could easily interface that by just attaching it to..." | Read more » | over 7 years ago | |||
| warren | "Related question here: https://publiclab.org/notes/warren/09-28-2016/upgrade-a-diy-spectrometer-with-a-raspberry-pi-camera " | Read more » | over 7 years ago | |||
| warren | "Very interested to see this, kudos! We've had some difficulties finding standard ways to disable exposure compensation on webcams, and there's been..." | Read more » | over 7 years ago | |||
| stoft | "This is and interesting observation and thought experiment. And I'd agree that controlling a light source's intensity while monitoring the camera's..." | Read more » | about 8 years ago | |||
| stoft | "@viechdokter yes, having a stable source helps isolate the noise source. I chose the Solux as I could measure the current as an independent check o..." | Read more » | about 8 years ago | |||
| viechdokter | "Ooops! Guess I tried to re-invent the bicycle here, huh? Looks like all my thoughts have been thought before - and many more... ;-) Will read it ..." | Read more » | about 8 years ago | |||
| warren | "https://publiclab.org/notes/stoft/03-06-2015/plab-3-gain-correction See the comments! " | Read more » | about 8 years ago | |||
| warren | "Hi! Yes indeed, see @stoft's work on gain control; we're trying to generalize his work for other light sources, and also develop it into a Spectral..." | Read more » | about 8 years ago | |||
| viechdokter | "BTW I wonder if we could find out more about the effects of the camera if you could do this same setup plus statistics again let's say with a green..." | Read more » | about 8 years ago | |||
| viechdokter | "For anyone who is interested: https://publiclab.org/notes/viechdokter/04-15-2016/thinking-about-a-more-stable-spectrometer " | Read more » | about 8 years ago | |||
| stoft | "Jeff; I'm glad I was clear. The mechanics is like the rest; it starts with the objective / spec that it is an optical device. That immediately rule..." | Read more » | about 8 years ago | |||
| warren | "Thanks, Dave, very helpful answers. I understand what you're saying about the difficulty of structuring a measurement of structural stability -- I'..." | Read more » | about 8 years ago | |||
| stoft | "@viechdokter:, thanks; just a lot of years of practice. Not to worry, your's are logical and thoughtfully organized. Jeff, thanks. Yes, new observ..." | Read more » | about 8 years ago | |||
| viechdokter | "Hi stoft, I am really impressed by your organised experiment design and statistics approach.Compared with your's my tests are kindergarten stuff......" | Read more » | about 8 years ago | |||
| warren | "Ah, I also want to connect this to yesterday's post by @viechdokter: https://publiclab.org/notes/viechdokter/04-13-2016/reproducibility-test-of-dat..." | Read more » | about 8 years ago | |||
| warren | "Super note, Dave! It answers and raises questions: "the camera is not providing fixed exposure control" -- we'd expected this, and anticipated th..." | Read more » | about 8 years ago | |||
| stoft | "Mathew, thanks. It's an interesting technique, though not without some added work to characterize a diffusion surface and assure bulb stability. I ..." | Read more » | about 8 years ago | |||
| mathew | "@stoft @warren @gretchengehrke I was digging through some notes and saw this old post. thought you might be interested " | Read more » | about 8 years ago | |||
| stoft | "Great! Yes, little glitches do creep in but yes, this Solux corrected plot has a much better shape. I'm guessing the slight curve variation between..." | Read more » | about 8 years ago |