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Vibratory flow meter and method to generate digital frequency outputs

  • US 10,151,613 B2
  • Filed: 07/08/2014
  • Issued: 12/11/2018
  • Est. Priority Date: 07/08/2014
  • Status: Active Grant
First Claim
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1. A method to generate a frequency output on a microcontroller comprising:

  • initializing an input clock signal having a predetermined period;

    calculating a parameter based on the predetermined period;

    calculating a desired frequency based on the parameter and a predetermined flow rate-frequency scaling;

    calculating a plurality of fractional pulses, whereineach fractional pulse of the plurality of fractional pulses is calculated based on the desired frequency, the predetermined period of the input clock signal, and a value of a preceding fractional pulse, andoutputting the desired frequency by toggling an output state when the calculated fractional pulse is greater than or equal to half of an output pulse period.

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