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Author Comment Last activity Moderation
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
GreenFrogg "@xose: My sensor is already enclosured. But there are still sensors to be installed. I will put the question on the project forum (in dutch languag..." | Read more » about 8 years ago
GreenFrogg "@Aldehyde: https://samenmetenaanluchtkwaliteit.nl/contact or samenmetenaanluchtkwaliteit@rivm.nl " | Read more » about 8 years ago
xose "Hi @GreenFrogg! Impressive work! We are now testing the potentiometers of the Shinyei PPD42 here in barcelona using two sensors on the same plast..." | Read more » about 8 years ago
aldehyde "Hello! I am from Ukraine. It's really interesting not only for me but my students also. How I can connect to this project. Thanks! " | 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
DavidMack "I would stick with the aluminum. It's probably the most commonly used material for PM monitoring because as you stated non-conducting materials ar..." | Read more » about 8 years ago
liz "Hey @kevinvivergy it's so great to hear from you! Here's the blue tagging assistance box that you will see when you click on "click here": ...W..." | Read more » about 8 years ago
kevinvivergy "Can do @liz, any in particular you would recommend? Not familiar with the system! " | Read more » about 8 years ago
liz "Hi @kevinvivergy, i have just tagged this note as an activity that others could try as well. I did this by adding the tag activity:open-air. If you..." | Read more » about 8 years ago
warren "I added a question:...... tag -- :-) " | Read more » about 8 years ago
jfrankamp "Somehow this didn't become a "Question" type... if anyone knows how to convert it I'd be thankful :-) " | Read more » about 8 years ago
mathew "thanks! I've had some trouble getting the illumination aligned with the very tall illumination arm I made. Its complicated as well by the cable of..." | Read more » about 8 years ago
richardbowman "Hi @matthew, great that you've got some images :) Looking at your graticule, I think your illumination might be misaligned - the blue-yellow gradi..." | 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
mathew "@plundh I'm not sure about this kit, but the OpenFlexure Microscope is moving towards a kit. More notes here: https://publiclab.org/tag/microscope ..." | Read more » over 8 years ago
plundh "Hi @Holger- I'm very interested in this, as well as a kit. Have you any updates on project? Best. -Peter " | Read more » over 8 years ago
richardbowman "Brilliant - I've wanted to make a carry case for absolutely ages, but other things keep getting in the way. I'll be excited to see what you come u..." | Read more » over 8 years ago
mathew "a note to myself: I found this article on calibrating microscopes useful background. http://www.agarscientific.com/media/import/Calibration-of-Micr..." | Read more » over 8 years ago