| 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 » | over 2 years 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 » | over 2 years 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 7 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 7 years ago | |||
| warren | "Interesting!!! " | Read more » | almost 7 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 7 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 7 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 » | almost 7 years ago | |||
| mathew | "I've been in touch with Airmetrics over the issue. they're been very helpful and responsive. (see below) " | Read more » | almost 8 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 » | almost 8 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 » | almost 8 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 » | almost 8 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 » | almost 8 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 » | almost 8 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 8 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 8 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 8 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 8 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 8 years ago | |||
| JuanfraAlvarez | "Here the PM10 (and NO2) Levels this afternoon. " | Read more » | about 8 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 8 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 8 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 » | about 8 years ago | |||
| eustatic | "woah, nice idea with the aquarium pump, looking forward to it. scott " | Read more » | over 10 years ago |