so if HC-SR04 is not suitable for this application which sensor can I use? maybe more powerfull transmitters n recievers and build my own circuit ?
Commercial ultrasonic flowmeters can easily be found on line. They would not be simple or easy to DIY.
multiple problems with commercial models.
1- too expensive
2- only detect rate of flow
3- no options available to interface with your own hardware .
if commercial people can make it why can't we as hobbyists ? since there is no manufacturing involved. .only need to build circuit and use sensors available in market.
These manufacturers much be buy sensors from open market also.
Try it and if you are successful, report back.
what type of ultrasonic sensor can penetrate the pipe wall ?
If you had looked carefully at the commercial options, and understood the principle of operation, you would not be asking this question.
The problem is to develop and interface a transducer that can efficiently transmit vibrations to solid and/or fluid materials, which have acoustic impedance thousands of times higher than that of air.
Do NOT assume this is easy to do.
i never said its easy to do.
but isnt challanging work worth a try ?
I am trying to understand why its nots possible for a hobbyist to make.
is it circuit behind these sensors that is difficult to make ?
See post #24.
There are instructions in the reference threads at the top of the forum. I just ctrl-V into a post, it works for me...
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