Recent content by Brad_805

Jim thanks so much! This is very helpful. I was reminded one of the problems is that this is gray water with soap and fiber and? residue in the flow, but the idea of the wobbling/rotating plate with a piece cut out of it is really clever. I know some folks who work at a city water dept, and...

You may want to look into the concept of Sampling theory. Water flow is being measured in realtime 100hz is not unreasonable. Measuring rainfall? maybe 10 seconds is ok. I looked up everything folks posted, why the rudeness here? Nobody is forcing you to post are they? Are you just trying to...

Right, so without backgrounds and all, people can be just a bulletin board voice not implying a timeline of abilities. And since time is more important than perfect text in a forum? people can sound one way but mean another. Im still learning, and like to learn. here I want to refresh my...

How about 50 samples/sec?

Seriously? you can't follow what I said, and if you read all the posts, came up with an impossible answer solving a water flow problem for cheap? I chose a physics group that has educated people responding in a peer fashion; if one disagrees? they can correct the other. I want to learn far...

Ok I found some ideas but one of the purposes of asking here was to ask about the fundamental physical properties of water flow measurement; what reacts with water, or actually gray water. Maybe gray water is more reactive? will gray soap rinse water store an electric charge? but that may not...

I think a plastic flap with a 3d resolver chip on the hinge fed to the microcontroller would work, 100 samples/sec should work? then calibrate with known volumes of water, etc

Thats a great point, its gray water. so a plastic flap being deflected over a spring and then a 3 axis resolver chip glued to the flap, they cost about $1 glued to the hinge. then map out xyz and make a correction factor chart, and the microcontroller would calculate based on what it gets from...

Need both but need to rate d/dt and then the total, but would summarize

What is your electronics experience ( be honest, don't exaggerate) ? extensive. about 45 years, a lot of school, a lot of design, test. Worked with and owned tv repair shops, fixed tube-transistor and newer, a lot of electronics work on a lot of things for many companies over the decades...

Well I mean its a microcontroller and then some wires going to some kind of sensor, or some kind of sensor unit that's powered and all it does is quantify flow. Is there nothing water reacts to? magnetic field zero, charge zero are there no fundamental forces known that water reacts to? yes...

Well... I don't know how to explain it better, If I said what its for? then the discussion would move away from trying to measure water flow, it is not some hack of the washing machine, its a standard washer. having an electronic sensor thing that sends digitized flow info 24/7 I think the...

Well the dp device sensing pressure drop may be the best to start with. problem is that in the washer, water flow is say 100% then it drops and tapers off so thermal may not work on the partial flow. Used to have a lot in the junk boxes. people called me a hoarder? I just needed a larger...

So the requirement here is to have an electronic sensor and microcontroller that measures the instantaneous d/dt flow, sending out flow measurements with a time stamp. The real question is what mechanism is used in this industry to measure water flow? what electronic apparatus, device, sensor...

I want to make it from parts, cost maybe $25.00 I know there are flow meters for sale. wanted to make it from scratch