**Conductivity** is a measure of a solution's ability to conduct electricity, as measured in Siemens per meter (S/m). (lead image by @ddileona) This page is under development, please add background info: * Info about regulations * Info about ecological or human health impacts * Advocacy leverage points * Constraints we're working within: cost, complexity, sensitivity, time Also see resources on this page: https://publiclab.org/wiki/conductivity_sensing ## Questions [questions:conductivity] **** ## Sensors Here's a list of different conductivity sensors and measurement systems. Also see below for some Do-It-Yourself approaches to measuring conductivity, and [this page](https://publiclab.org/wiki/conductivity_sensing) for more information. * [the Coqui](/wiki/coqui) **** ## Activities Activities for people to test methods (these develop over time) [activities:conductivity] **** ## Existing work [notes:conductivity] ...
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| jhondue123456 | "https://www.google.com/ " | Read more » | 9 months ago | |||
| dex_zhou | "one of important point to industrial producing is how to limit the float, and makes the value accurate even after 3,5 years, products like https://..." | Read more » | almost 4 years ago | |||
| auressig | "Hello @bhickman, I know it has been a while since your last message but I have read this thread with a lot of interest, and I was wondering if you ..." | Read more » | over 4 years ago | |||
| MadTinker | "Just a quick update on the status of this project. Willow Creek is going through a couple of serious events. First, the stretch of the stream where..." | Read more » | over 6 years ago | |||
| hpprinter1995 | "Nice And Informative Website. Please Keep Continue Such Kind Of Effort. Contact Us And Get On-Site HP Printer Support & HP Scanner Support. Our..." | Read more » | over 6 years ago | |||
| pdhixenbaugh | "I'm also looking to measure Conductivity, and I have a Riffle. So you have any advice for what sensor to buy, with the memory constraints and other..." | Read more » | over 6 years ago | |||
| Paquicamus | "I have done many calibrations to correlate Conductivity vs TDS. One thing that I have found out it will only work for one Creek, river or any surfa..." | Read more » | over 6 years ago | |||
| eustatic | "dot " | Read more » | about 7 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 7 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 7 years ago | |||
| kgradow1 | "https://publiclab.org/wiki/coqui " | Read more » | over 8 years ago | |||
| pdhixenbaugh | "@kgradow1 I'm having trouble finding the coqui activity grid. Could you link to it? " | Read more » | over 8 years ago | |||
| kgradow1 | "Accidentally posted this on the coqui activity grid and looks like I can't remove it. Help? " | Read more » | over 8 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 » | over 8 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 » | over 8 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 » | over 8 years ago | |||
| donblair | "Hi Rebeccah! Fantastic stuff here. Lots to digest, and I have several thoughts -- but first, quickly: the frequency output of the Coqui requires..." | Read more » | over 8 years ago | |||
| cfastie | "Hi Rebeccah, Just in case this can explain the problems when using the proto board, are you aware that the proto board for the Riffle has its pins..." | Read more » | over 8 years ago | |||
| pdhixenbaugh | "Hello Rebeccah! I'm interested in replicating this experiment! The biggest thing I am unsure about is the code - can you link to the riffle code yo..." | Read more » | over 8 years ago | |||
| warren | "Hi, Rebeccah -- looks like your lead image didn't work -- maybe try again, or email it to web@publiclab.org if you can't get it to upload? I'm int..." | Read more » | over 8 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 8 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 8 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 8 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 8 years ago |