Low power ultrasonic flow meter
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Jun 6, 2006
Grant Date -
Oct 27, 2005
app pub date -
Mar 26, 2004
filing date -
Mar 26, 2004
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A flow meter is powered by a loop power supply which supplies a supply voltage. A load is powered by a load voltage and includes at least a processor for calculating a flow rate, an ultrasonic transducer power circuit, and an ultrasonic transducer receiving circuit. A power regulating circuit is disposed between the loop power supply and the load and includes a power converter responsive to the supply voltage to vary the load voltage in response to a control signal, a safe storage device between the converter and the load for storing power and for delivering power when required by the load, and a control subsystem for providing the control signal to the converter based on the setting of the loop power supply by the load. A power management detects the load voltage and to reduces the power consumption of the load at one or more predetermined set points.
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