System and method for measuring a resonance frequency of a tube
First Claim
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.
1 Assignment
0 Petitions
Accused Products
Abstract
The invention proposes a system for measuring a resonance frequency of a tube. The system comprises: an oscillating unit (21) for oscillating the tube at a plurality of oscillation frequencies, respectively; a detecting unit (22) for detecting a time delay of transmitting a pressure pulse from a first position to a second position in the tube when the tube is oscillated at each oscillation frequency, wherein, when the tube is oscillated at each oscillation frequency in a specific oscillation frequency range of the plurality of oscillation frequencies, the detecting unit (22) detects a variation of the time delay—a determining unit (23) for determining a maximal variation of the time delay when the tube is oscillated at the oscillation frequencies in the specific oscillation frequency range; and—an indicating unit (24) for indicating an oscillation frequency corresponding to the maximal variation of the time delay, being a resonance frequency of the tube.
9 Citations
12 Claims
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of assisting a cough based on a resonance frequency of a tube, the method comprising the steps of:
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oscillating, via an oscillator, the tube at a plurality of oscillation frequencies; detecting, via one or more sensors, a time delay of transmitting a pressure pulse from a first position to a second position in the tube while the tube oscillates at an individual frequency of the plurality of oscillation frequencies, wherein, when the tube is oscillated at different oscillation frequencies in a specific oscillation frequency range of the plurality of oscillation frequencies, the detecting step includes detecting a variation of the time delay at each of the different oscillation frequencies; determining, via a computer, a maximal variation of the time delay when the tube is oscillated at the different oscillation frequencies in the specific oscillation frequency range; indicating, via the computer, 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; and assisting, via the computer, a cough based on the resonance frequency of the tube. - View Dependent Claims (9, 10, 11, 12)
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Specification