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Statistics: Posted by cliffbeaty — Sat Apr 22, 2006 8:47 am
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Couldn't find it on a google search might have to do it the hard way.
The site is.
www.rsaustralia.com
follow the links:
Products
Automation
control products-flow & level
flow transducers
liquid flow sensors
compact flow sensor
Statistics: Posted by drewsky — Fri Mar 24, 2006 4:57 am
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Eventually, the weight of the water causes the bucket to tip on its hinges.
The water is then added to the contents of a bigger bucket below. This process is repeated all the way to the fountain's base, the buckets getting bigger and bigger on the way down.
The whole thing makes for an entertaining display. Really, honest
I figure that this method could be applied to gas production rate measurement. The 'bucket' is held upside down in the bubbler. Gas enters it, and eventually causes it to tip up and discharge its contents as a bigger bubble.
The 'bucket' would be quite small, so the rate could be determined fairly quickly. Bucket flips could be counted automatically, to evaluate production rates.
I like the wonderful simplicity of the litre bottle test, but I am fundamentally lazy, and really prefer having a machine do the work for me
.Best wishes,
Steve-tee.
Statistics: Posted by Steve-tee — Wed Mar 08, 2006 5:22 pm
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here is the make and model again for finding one, and getting the circuits for tweaking:
YEAR: 1992
Make: Plymouth
Model: Colt (NOT the VISTA)
Engine size: 1.5, SOHC, Belt driven cam, Port injected
Engine Vin: Code A=1.5 export, Code Q=1.5 Import (from the USA)
these were made in mexico.
AlaskaStar
Statistics: Posted by AlaskaStar — Sun Mar 05, 2006 3:35 pm
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Statistics: Posted by GreenElectron — Sun Mar 05, 2006 1:39 am
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I wonder if another approach might work. The idea I am considering, does not have moving, or heated parts.
Instead, it uses ultrasonics. There would be an ultrasonic sender and receiver inside the pipeline. These would be side by side, and the 40Khz signal would strike a target inside the same pipe. When gas is flowing towards the transducers, there should be a phase shift in the returned signal. Since the signal is always present, the relative phase shift can be nulled out, and used to detect the flow of gas in either direction. As the gas flow becomes faster, the phase shift would become greater.
One can measure the phase shift and display it on either a digital or analogue meter.
This idea is only theoretical, but I have found in early experiments that I can use this method to detect movements as small as 100 microns.
It occurs to me that the transducers could be facing each other, from two points in a portion of the pipe line. Gas flow will cause a 'doppler' effect, thereby inducing the desired phase shift.
I wish to measure gas production rates also, so I hope to set this experiment up in the near future.
Best wishes,
Steve-tee
Statistics: Posted by Steve-tee — Sun Mar 05, 2006 12:55 am
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I'm trying to find a way to measure gas production electronicaly in real time. I've priced gas flow sensors (the ones that work with a small impeller and a frequancy counter) but the ones that I have found are all very expensive, around $700 Aus. So i'm trying to think of some where to scavange an old one. Cars have an air flow meter, but way to big and I don't think using a hot wire with hydrogen is good idea
Does any one know of any cars engines or any other machines that use a small gas flow sensor that I might be able scavange?
I've been contemplating building my own.
Maybe and it is a big maybe,
a small impeller from a fish tank pump
a machined block of plastic and some sort of photo diode or light dependant resisitor hooked up to a frequancy counter.
Mmmm think it would be much easier to scavange one
Statistics: Posted by drewsky — Sat Mar 04, 2006 9:15 pm
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