Hi Pankaj Mandal
thank you for your useful contribution.
We have tried this, unsuccessfully. The requirement is for the acoustic
waves to travel through the water, and the people keep drowning.
The budget will not extend to provision of underwater breathing
apparatus. Have tried using dolphins, but the Greenpeace people keep
letting them go.
Cheers
Steve
-----Original Message-----
From: Pankaj.Mandal@fluor.com [mailto:Pankaj.Mandal@fluor.com]
Sent: Thursday, March 31, 2005 4:05 PM
To: PipingDesign@yahoogroups.com
Subject: RE: [PipingDesign] acoustic telemetry using pipeline
Steve,
Station a person at the top of the hill near the tank and one more near the pump. Ask the former to shout at the top of his voice when the tank is full so that the later can switch off the pump. Simple isn't it.
One word of caution: make sure neither of them are deaf or dumb.
Cheers,
Pankaj Mandal.
"Steve McKenzie" <Mechproj@xtra.co.nz>
03/31/05 05:21 AM
Please respond to PipingDesign
To: <PipingDesign@yahoogroups.com>
cc:
Subject: RE: [PipingDesign] acoustic telemetry using
pipeline
Hi Al
don't go to any trouble; was just wondering if there is something off
the shelf that someone knows of.
Cheers
Steve
-----Original Message-----
From: aluser2 [mailto:alwynk@shaw.ca]
Sent: Thursday, March 31, 2005 12:02 PM
To: PipingDesign@yahoogroups.com
Subject: Re: [PipingDesign] acoustic telemetry using pipeline
try russell tech or their gurus at queens
>
>
> Gents+2
> I have an application with a pd pump at the bottom of a hill feeding a
> tank at the top. When the tank is full I want the pump to stop. Would
> prefer a level switch in the tank in this case, rather than a float
> valve/restrictor at tank, pressure switch/accumulator at pump. There
> is no line of sight so simple telemetry is out and I do not want to
run
> a wire.
> Was wondering is anyone makes an acoustic transmitter and receiver so
I
> can sent a sound signal down the pipe through the water from the tank
> to the pump.
>
> Any leads would be appreciated.
>
> Cheers
>
> Steve
>
>
>
>
>
>
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>
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>
>
>
>
>
>
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