dust-sensing
dust-sensing


Author Comment Last activity Moderation
bhamster "Hi @myluli0110, welcome! Just in case you hadn't seen it yet, there's some information on calibrating the MiniVol here: https://publiclab.org/notes..." | Read more » 6 months ago
myluli0110 "Hi Mathew, hopping you're fine and healthy. I'm trying to calibrate a MiniVol, but looking for how to do it, I discovered your post. Did they tell ..." | Read more » 6 months ago
warren "The MiniVol is a few thousand dollars, i think used: https://publiclab.org/minivol but the samples cost a good bit to process (see page) And the T..." | Read more » almost 5 years ago
warren "Hi, @JuanfraAlvarez - what is the mapping site you're using? Would you be interested in adding a layer to maps across PublicLab.org? We're compilin..." | Read more » almost 5 years ago
warren "Interesting!!! " | Read more » almost 5 years ago
xose "Just found this on my sunday net random navigation. Laser PM2.5 Air Quality Sensor For Arduino. £50GBP At the core there's this sensor SKU:SEN0177 " | Read more » almost 5 years ago
warren "Moving some text from the #particle-sensing page by @DavidMack -- thanks, David! Trying to consolidate some scattered info on this across the site ..." | Read more » almost 5 years ago
amirberAgain "Saw this during the air pollution open call today, It looks really nice! any reason you used ImageJ and not Python + OpenCV? " | Read more » about 5 years ago
mathew "I've been in touch with Airmetrics over the issue. they're been very helpful and responsive. (see below) " | Read more » about 6 years ago
mathew "Airmetrics got to scratching their heads over this difference as well! It turns out there is an additional variable that isn't listed in the manua..." | Read more » about 6 years ago
warren "Do we have contacts who've used these instruments that we could reach out to for input on these calculations? " | Read more » about 6 years ago
mathew "I contacted some folks at Airmetrics, and their initial reaction was that I appeared to be doing it correctly (but they didn't really dig in). The ..." | Read more » about 6 years ago
mathew "@gretchengehrke 1) yes, P and T are pressure and temp. There's Pstd and Pact (P standard and P actual) same for temperature. Those are the tempera..." | Read more » about 6 years ago
gretchengehrke "Hi Mathew, There are three things that come to my mind: (1) To think more through Equation 1, I'm curious what P and T are. Pressure and Temp? (2) ..." | Read more » about 6 years ago
xose "Hi @jeffalk! Thanks for your help! That's not a basic question. That's in fact the kind of answer we've received from Shinyei, that every sensor ha..." | Read more » about 6 years ago
jeffalk "Please excuse this basic question but what makes you think that all such devices should calibrate with the same resistance? You've shown that for s..." | Read more » about 6 years ago
JuanfraAlvarez "I have just found this: http://takingspace.org/wp-content/uploads/ShinyeiPPD42NS_Deconstruction_TracyAllen.pdf "In the two that I tested, VR3 was ..." | Read more » about 6 years ago
JuanfraAlvarez "thanks @warren, that post (pdf of field calibrations) is the reason we changed the sampletime to 3600000ms (1h) as this guys have tested its in ho..." | Read more » about 6 years ago
warren "Awesome post and good questions! I did find this interesting post w some possibly helpful info: https://publiclab.org/notes/Willie/04-01-2014/fie..." | Read more » about 6 years ago
JuanfraAlvarez "Here the PM10 (and NO2) Levels this afternoon. " | Read more » about 6 years ago
JuanfraAlvarez "If you want to check the station we are going to be using as reference, its exactly the one circled in the image, you can check it in this link htt..." | Read more » about 6 years ago
imvec "Found out that seedstudio folks have this image in the documentation but no value... https://raw.githubusercontent.com/SeeedDocument/Grove_Dust_Sen..." | Read more » about 6 years ago
mathew "Here are some image sets including a flat field calibration and scale from the PSL imaging. 20160923_PSL_Sphere_SET.zip " | Read more » over 6 years ago
eustatic "woah, nice idea with the aquarium pump, looking forward to it. scott " | Read more » over 8 years ago