calibration
calibration


Author Comment Last activity Moderation
warren "This is now working on Infragram's online demo at https://publiclab.github.io/infragram/ -- give it a try! It'll work now on webcam microscopes,..." | Read more » almost 3 years ago
warren "Hi! There's quite a bit on this at #intensity-calibration to dig into, great question! Thanks!!! " | Read more » almost 3 years ago
akadstatus "Nice Post thanks for sharing... Whatsapp status video download diwali status in hindi 2019 हैप्पी दिवाली हिंदी स्टेटस " | Read more » about 3 years ago
slopike " Hope this helps! https://spectralworkbench.org/spectrums/159811 " | Read more » about 3 years ago
warren " Hi! Noting this project which may be of interest: https://gitlab.com/bath_open_instrumentation_group/picamera_cra_compensation And pinging @magg..." | Read more » about 3 years ago
xavnet2 " Hi Kristina, Some time ago, I wrote an article about calibrating spectrographs of this type. The article is entitled "Spectrographic mask for dig..." | Read more » about 3 years ago
KristinaTamara "warren, I am sorry for bothering you again, but we really don't have much time because this is the final school project. so, please can you send us..." | Read more » about 3 years ago
KristinaTamara " can you please give us a picture of calibration for our spectrometer? thanks in advance that will be the last thing that we ask, I promise ☺️ " | Read more » about 3 years ago
Ag8n " The green line on a compact florescent lamp is the one at 546 nm. There are a couple of calibration videos on the link @Warren gave that might h..." | Read more » about 3 years ago
KristinaTamara " thank you for replying, but the problem is that i don't know how to do it right way, so I if you can please help us with calibrating the green col..." | Read more » about 3 years ago
warren " Hi! Have you tried these steps? Thanks! https://publiclab.org/notes/warren/09-01-2016/calibrating-your-spectrometer-in-spectral-workbench " | Read more » about 3 years ago
petter_mansson1 " Hello, my input might guide you in the right direction. Different environments require different settings so it might be hard to generalize. I did..." | Read more » about 3 years ago
warren "OK, update - since the B sensor was covered yesterday, it's now showed as "downgraded" just as the A was yesterday: My question now, is apart fr..." | Read more » about 3 years ago
warren "OK! After now blocking the B sensor instead, it's accepting A data once more, and hasn't yet flagged the B sensor. Interesting! " | Read more » about 3 years ago
warren "Aha! One day later, my sensor A has been "downgraded"! I'll move the tape to the other sensor and see what happens. " | Read more » about 3 years ago
warren "i'll post more soon, but one is now totally blocked and it shows on the graph, but it's not rejecting the data. I'll let this run for a day. Then ..." | Read more » about 3 years ago
warren "OK, i covered it more thoroughly and will wait a while to report back on what happens. " | Read more » about 3 years ago
warren " OK testing this out now. Here's our sensor, on Cromwell St at our office: https://www.purpleair.com/map?582419|582421#13/41.81161/-71.41883 Note ..." | Read more » about 3 years ago
warren "This is great, thanks @kkoerner -- and interesting to see that they'll flag sensors. I wonder how much two would have to not correlate before it go..." | Read more » about 3 years ago
kkoerner "So from my experience they're used primarily as a sanity check. I'm not sure of the math behind it, and since PA removed the R2 values that used to..." | Read more » about 3 years ago
warren " @julieta @nanocastro have either of you used 2 sensors in your DIY #plantower -based devices? #maca etc? " | Read more » about 3 years ago
warren "And just linking to here, where the wiki page documents the 2 channels, which i would guess are from the 2 sensors? https://publiclab.org/wiki/purp..." | Read more » about 3 years ago
warren "@CBarnes9 @samr @Tomp @OrionAllgaier @wu_ming2 @guolivar @BrandonFeenstra @kkoerner, any thoughts or info to share on exactly what the #purpleair d..." | Read more » about 3 years ago
Bronwen " Oh, wow, I totally missed the mark, that's even cooler. " | Read more » about 3 years ago