DEA
Engineering Company |
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| Phone:(951) 552-0102 | Fax:(951) 763-1263 | E-mail: dealigio@deaengineering.com |
Mechanical Installation & Operating Considerations
Electronic Installation & Operating Considerations
MICRO FLOW METER-PRINCIPLE OF OPERATION
During each
cycle, an amount of liquid is displaced equal to the difference in the
volumes of the chambers minus the volumes of the pistons.
This process repeats itself in a continuous flow mode at the rates of
1 to 210 complete cycles per second proportionately to the fluid flow
through the meter. In the FMTD4 Microflowmeter, each cycle displaces
approximately .02 cc. Approximately 200,000 cycles will displace one
gallon. The FMTD20 Microflowmeter has a flow rate capacity five times
larger than the FMTD4.
Signal detection is accomplished by light interruptions of a photo emitter/detector device. A ferromagnetic wire tracks the magnet in the nutator [through a pressure tight barrier] causing these interruptions. The interruptions are electronically manifested as sine waves which are then conditioned by conventional electronic means to provide a square wave output.
