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System and method for measuring a resonance frequency of a tube

  • US 9,958,316 B2
  • Filed: 07/13/2010
  • Issued: 05/01/2018
  • Est. Priority Date: 07/16/2009
  • Status: Active Grant
First Claim
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1. A system for measuring a resonance frequency of a tube, the system comprising:

  • a computer system programmed by computer-readable instructions that, when executed, cause the computer system to;

    oscillate the tube at a plurality of oscillation frequencies;

    detect, while the tube oscillates at an individual frequency, a time delay of transmitting a pressure pulse from a first position to a second position in the tube, wherein, when the tube is oscillated at different oscillation frequencies in a specific oscillation frequency range of the plurality of oscillation frequencies, detecting the time delay of transmitting a pressure pulse further comprises detecting a variation of the time delay at each of the different oscillation frequencies;

    determine a maximal variation of the time delay when the tube is oscillated at the different oscillation frequencies in the specific oscillation frequency range; and

    indicate an oscillation frequency corresponding to the maximal variation of the time delay, the oscillation frequency corresponding to the maximal variation of the time delay being a resonance frequency of the tube.

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