Measuring the RPM of an Electric Fuel Pump
Measuring the RPM of an Electric Fuel Pump
(OP)
I am doing some research on electric fuel pumps and I would like to determine the RPM. The motor is enclosed so none of the rotating parts are readily accessible. I have a test bench with a variable voltage DC power supply, back pressure control, and appropriate test fluid so the pumps are partially submerged and running under application conditions. I'd like to know what would be the best equipment (without breaking the bank). I'm thinking some kind of oscilloscope and transducer combination? If so, would I want a stand-alone or PC/USB based unit? Thanks.





RE: Measuring the RPM of an Electric Fuel Pump
But don't run out and buy anything until you snag an EE to help you; this stuff is clearly outside of your comfort zone.
Mike Halloran
Pembroke Pines, FL, USA
RE: Measuring the RPM of an Electric Fuel Pump
RE: Measuring the RPM of an Electric Fuel Pump
RE: Measuring the RPM of an Electric Fuel Pump
Bill
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"Why not the best?"
Jimmy Carter
RE: Measuring the RPM of an Electric Fuel Pump
Look for commutation switching on a DC motor. You might be able to see the pressure pulses from the impeller blades passing the discharge. Both will require knowledge of the pump construction.
RE: Measuring the RPM of an Electric Fuel Pump
RE: Measuring the RPM of an Electric Fuel Pump
http://www.precisionmicrodrives.com/tech-blog/2011...
What would I need and how would I actually take the measurements?
RE: Measuring the RPM of an Electric Fuel Pump
That's why you need an EE right there with you.
Maybe there's a market for a site that defines specific problem solving kits. This ain't it.
But let's do some marketing.
IF such a site existed, and would offer you an equipment list and detailed instructions, ... how much money would you pay to compensate the site for the effort of coming up with the documentation?
Mike Halloran
Pembroke Pines, FL, USA
RE: Measuring the RPM of an Electric Fuel Pump
Walt
RE: Measuring the RPM of an Electric Fuel Pump