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Module for gas flow measurements with a dual sensing assembly

  • US 9,170,135 B2
  • Filed: 03/12/2013
  • Issued: 10/27/2015
  • Est. Priority Date: 10/30/2012
  • Status: Expired due to Fees
First Claim
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1. A gas meter, comprising:

  • a housing having an inlet and an outlet;

    a gas measurement module disposed within the housing, the gas measurement module comprising a modular unit including;

    a chamber with an inlet and an outlet;

    an obstacle disposed in the chamber, wherein the obstacle is configured to generate an oscillating gas jet when flow of gas into the chamber is at or above a threshold flow rate; and

    a dual sensing assembly disposed in the modular unit, wherein the dual sensing assembly comprises one or more first sensors using a first gas flow sensing technology and multiple second sensors using a second gas flow sensing technology, wherein the multiple second sensors are disposed in the chamber, and wherein the multiple second sensors comprise a first oscillating gas jet sensor configured to come into contact with the oscillating gas jet at a first time and a second oscillating gas jet sensor configured to come into contact with the oscillating gas jet at a second time in response to movement of the oscillating gas jet.

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