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| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "I keep my eye out for old Nalgene bottles which are tough enough to survive rough handling and hydraulic pressure. The lids are also strong so they..." | Read more » | over 5 years ago | |||
| warren | "I think this page may have some on moisture sensing! https://publiclab.org/notes/mathew/02-26-2015/sensors-in-soda-bottles " | Read more » | over 5 years ago | |||
| warren | "Hm, i can't seem to find it. i think it may have been buried in a comment thread somewhere! " | Read more » | over 5 years ago | |||
| pdhixenbaugh | "@warren great suggestion! It rains a lot here so I'm somewhat worried about that too. Where can I find that conversation? Are there any inexpensive..." | Read more » | over 5 years ago | |||
| warren | "There's also been some discussion of leaving the device in an upside-down bottle outside the water, say with the bottle taped to a long stake, and ..." | Read more » | over 5 years ago | |||
| gretchengehrke | "@bhikman, that integrated optical filter is neat, and surprisingly inexpensive! If you do pick this back up, I am super interested in seeing how we..." | Read more » | over 6 years ago | |||
| bhickman | "Hi @gretchengehrke. I kinda let this project fall though the cracks. I did have the sensor working pretty well, the only issue was interference fro..." | Read more » | over 6 years ago | |||
| gretchengehrke | "Hi @bhickman and @ggallant! I was just reading this research note and comments again, and it sounds like such a promising project. Are there any up..." | Read more » | over 6 years ago | |||
| bhickman | "Hi Patrick. I'm currently out in the field as part of a research team and won't be back to my lab for a few weeks. Once I get back I can look at so..." | Read more » | over 6 years ago | |||
| pdhixenbaugh | "Hi Ben, checking in here -- have you used this design any further? A few folks would be very interested to see what kinds of accuracy and precision..." | Read more » | over 6 years ago | |||
| pdhixenbaugh | "Ben, thank you for that explanation, it is very helpful in understanding many of the challenges and solutions presented by conductivity field measu..." | Read more » | about 7 years ago | |||
| bhickman | "Hello pdhixenbaugh, I like how you have colored the schematic, makes things much clearer. As for your questions, I'll try and answer them. Firstly..." | Read more » | about 7 years ago | |||
| pdhixenbaugh | "Hi Ben, There is a lot to dive into here. I would really like to learn how this circuit works. I'm also new to this, and have a lot of questions. T..." | Read more » | about 7 years ago | |||
| rfdave | "Thanks. I'm thinking about a Water quality Staff made from PVC with temperature, conductivity, and turbidity sensors build in, so I'm not thinking ..." | Read more » | over 7 years ago | |||
| bhickman | "Hi ggallant. Your design files look great! I'm going to have to look into openscad. As far as a server, I don't think publiclab has one. I think mo..." | Read more » | over 7 years ago | |||
| bhickman | "Hi rfdave. To my knowledge the only requirements is that the electrodes be inert. I chose graphite because I had some laying around and its cheap. ..." | Read more » | over 7 years ago | |||
| rfdave | "I've got a question. Is there any reason you couldn't use metallic electrodes instead of the graphite? Stainless steel would be more rugged and po..." | Read more » | over 7 years ago | |||
| ggallant | "I parked the openscad design files at https://www.dropbox.com/sh/mzp8gketcuqufkq/AADkG_kmo2xcL3iWYOLi4YCxa?dl=0 If there is a better place, such a..." | Read more » | over 7 years ago | |||
| bhickman | "Hi ggallant. I'm definitely interested in what you have put together. I'll check out openscad to see what you have. As for the pipe and air bubble..." | Read more » | over 7 years ago | |||
| ggallant | "I have decided to suspend my current turbidity sensor and instead adapt yours to my base station. If it is of interest I have modeled the mechanica..." | Read more » | over 7 years ago | |||
| bhickman | "Hi donblair, thanks. There is still a bit of development to be done, especially for extended deployments, but I think the design shows promise. I ..." | Read more » | over 7 years ago | |||
| donblair | "Ben, Fantastic job on this! Excellent descriptions of the entire system -- the electronics, the probe design, and the calibration procedure. Ver..." | Read more » | over 7 years ago | |||
| bhickman | "Hi ggallant. Sounds interesting. I'm trying to picture your design, but I'm not sure if I have it right. Can you post a picture? I definitely thin..." | Read more » | over 7 years ago | |||
| ggallant | "My current led and sensor boards are 6 sided and designed to attach to hardware store 3/4 plugs with plenty of epoxy and silicone sealant. Next rev..." | Read more » | over 7 years ago |