Presentation 2005/11/23
A volume estimation of the residual content in a gas cylinder by measuring the acoustic responses
Hironao KANBARA, Kentaro NAKAMURA, Daisuke KOYAMA, Sadayuki UEHA,
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Abstract(in English) The goal of this study is to measure the residual volume of liquefied gas in a gas cylinder accurately by measuring the acoustic responses to a mechanical excitation applied on the outside of the gas cylinder. First, we investigated the vibration mode of cylinder through both measurements and finite element method. We analyzed the change in the resonance frequencies theoretically by assuming that liquid worked as loaded mass to the gas cylinder wall. The mass-loading effect is expressed by an analytical form and the water level can be calculated by the equation from the peak frequency. Then, it was shown experimentally that our method for residual volume estimation was valid for a 10.3ι gas cylinder with the error of less than 5.2%. It was also demonstrated that that the error was reduced by using the corrected vibration distributions. We confirmed that the method was valid also for glass bottle.
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Keyword(in English) Mass-loading effect / Acoustic response / Liquefied gas cylinder / Residual volume
Paper # US2005-86
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Committee US
Conference Date 2005/11/23(1days)
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Registration To Ultrasonics (US)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) A volume estimation of the residual content in a gas cylinder by measuring the acoustic responses
Sub Title (in English)
Keyword(1) Mass-loading effect
Keyword(2) Acoustic response
Keyword(3) Liquefied gas cylinder
Keyword(4) Residual volume
1st Author's Name Hironao KANBARA
1st Author's Affiliation Precision and Intelligence Laboratory, Tokyo Institute of Technology()
2nd Author's Name Kentaro NAKAMURA
2nd Author's Affiliation Precision and Intelligence Laboratory, Tokyo Institute of Technology
3rd Author's Name Daisuke KOYAMA
3rd Author's Affiliation Precision and Intelligence Laboratory, Tokyo Institute of Technology
4th Author's Name Sadayuki UEHA
4th Author's Affiliation Precision and Intelligence Laboratory, Tokyo Institute of Technology
Date 2005/11/23
Paper # US2005-86
Volume (vol) vol.105
Number (no) 440
Page pp.pp.-
#Pages 6
Date of Issue