Re: [Vo]:Volumetric counter
On Tue, Mar 8, 2011 at 3:40 PM, Jed Rothwell wrote: > Mattia Rizzi wrote: >> >> They dont use a flowmeter but a volumetric counter >> > > Ah. I confess I have never heard of one of those. Sure you have. There's one on the water main to your house. T
Re: [Vo]:Volumetric counter
Nobody know it except Levi -- From: "Jed Rothwell" Sent: Tuesday, March 08, 2011 9:40 PM To: Subject: [Vo]:Volumetric counter Mattia Rizzi wrote: They dont use a flowmeter but a volumetric counter Ah. I confess I have never heard of one of those. Here is one with a cross-section that looks like rotary engine: http://www.technomadltd.co.il/Admin/Product/uploads/File1_1449.pdf I would describe this as a flowmeter that uses pulses from a piston and cylinder, rather than a continuous signal from a spinning turbine. Each pulse indicates 1 cylinder-full of liquid. Small precision flowmeters sometimes work by adding a pulse of heat to the passing fluid, and detecting it downstream. They said they needed a video camera to record the flow rate at night. That made me think it was an old fashioned analog device, such as this one: http://www.jerman.com/dljmeter.html If this counter produces pulses, you would think they would collect that data with a computer. Do you happen to know what type of volumetric counter they use? - Jed
[Vo]:Volumetric counter
Mattia Rizzi wrote: They dont use a flowmeter but a volumetric counter Ah. I confess I have never heard of one of those. Here is one with a cross-section that looks like rotary engine: http://www.technomadltd.co.il/Admin/Product/uploads/File1_1449.pdf I would describe this as a flowmeter that uses pulses from a piston and cylinder, rather than a continuous signal from a spinning turbine. Each pulse indicates 1 cylinder-full of liquid. Small precision flowmeters sometimes work by adding a pulse of heat to the passing fluid, and detecting it downstream. They said they needed a video camera to record the flow rate at night. That made me think it was an old fashioned analog device, such as this one: http://www.jerman.com/dljmeter.html If this counter produces pulses, you would think they would collect that data with a computer. Do you happen to know what type of volumetric counter they use? - Jed
