water-monitoring
water-monitoring


Author Comment Last activity Moderation
warren "I will be attending! " | Read more » over 10 years ago
EdMallon "Despite my zeal for the project, I have tried not to bomb everyone here with the many incremental updates as I go along. But I think I might have p..." | Read more » over 10 years ago
zengirl2 "Bummer, I'm scheduled for an artist's opening on Friday night at my nature center (same weekend as the barnraising). However, I could swear I saw ..." | Read more » over 10 years ago
kanarinka "No worries - if you can travel north a bit you should consider coming to the New England barnraising the weekend of June 5th -- http://publiclab.or..." | Read more » over 10 years ago
zengirl2 "I live in Philly. I'm currently a LandLab Artist in Residence at the Schuylkill Center for Environmental Education. I'm hoping to study stormwater..." | Read more » over 10 years ago
kanarinka "Thanks ZenGirl2 - a tutorial is definitely in the works as soon as we have a working prototype that people can use -- we are looking at June 5th fo..." | Read more » over 10 years ago
zengirl2 "I noticed that you have a lot of Github info, but are you considering writing a tutorial? I'm interested in building a Riffle for Philly. Maybe yo..." | Read more » over 10 years ago
warren "@wattminder - have you seen some of the recent work with the Riffle, for conductivity monitoring of water? http://publiclab.org/wiki/riffle Also f..." | Read more » over 10 years ago
unmanaged "I would be glad to send some SS welding rods to you free of charge... you have access to the scope and tools I do not... I planted the garden today..." | Read more » over 10 years ago
bgamari "Over the last few days I've been busily reworking some aspects of the measurement. Now we have a much lower excitation voltage (currently 100mV, al..." | Read more » over 10 years ago
JSummers "Hi Don, I agree with Cversek that you need to keep the voltage difference small. you also might want to look at using graphite electrodes. The ki..." | Read more » over 10 years ago
donblair "Cversek -- wow, thank you!!! What a useful collection of info. Your note convinced Ben to add a dual op-amp to buffer the conductivity output, and..." | Read more » over 10 years ago
kanarinka "nice work - it's great to see that the conductivity measurement is coming along like this! " | Read more » over 10 years ago
cversek "What is the max amplitude of the voltages you are applying across the screws? If this gets too high you could be electrolyzing the water, other io..." | Read more » over 10 years ago
donblair "Just noticed -- in that last plot, it looks like the 'falling times' (top curve) start 'slumping', whilie the 'rising times' (bottom curve) seem re..." | Read more » over 10 years ago
donblair "And, as per our discussion elsewhere today, maybe we also want this material to go in a 'wiki' ... if you get a chance, Catherine, maybe you can d..." | Read more » over 10 years ago
donblair "Yay! " | Read more » over 10 years ago
warren "This is so exciting. " | Read more » over 10 years ago
EdMallon "Hi everyone, Just a quick note to say the first gen loggers survived their initial 3 month deployment giving us real water flow data, (6m depth,~ ..." | Read more » over 10 years ago
flint "I would be happy to take some advice as to how to best show off the strembot. " | Read more » over 10 years ago
mathew "well, there's no explanation on your website. By googling the name on the sensor name visible in a photo of yours, I can see that its an e-tape mi..." | Read more » over 10 years ago
flint "No, it uses a passive depth sensor strip. See website. " | Read more » over 10 years ago
mathew "I'm wondering if you could post some more details or sketches of your design? is it using conductivity? " | Read more » over 10 years ago
EdMallon "Hi everyone. I just wanted to post an update as I have done some major code development for the Cave Pearl data logger recently, and a weeks wor..." | Read more » over 10 years ago