(The) experimental studies of two-phase mixture level measurement with ultrasonic = 초음파를 이용한 이상류 수위 계측에 관한 실험적 연구

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An ultrasonic method is developed for the measurement of two-phase mixture level in the reactor vessel or steam generator. The ultrasonic method is selected among several non-nuclear two-phase mixture level measurement methods through two steps of selection procedure. A commercial ultrasonic level measurement method is modified for application into the high temperature, pressure, and other conditions. The calculation method of the ultrasonic velocity is modified to consider the medium as the homogeneous mixture of air and steam, and to be applied into the high temperature and pressure conditions. The cross-correlation technique is adopted as a detection method to reduce the effects of the attenuation and the diffused reflection caused by suface fluctuation. The waveguides are developed to reduce the loss of echo and to remove the effects of obstructs. The present experimental study shows that the developed ultrasonic method measures the two-phase mixture level more accurately than the conventional methods do.
Advisors
No, Hee-Cheonresearcher노희천researcher
Description
한국과학기술원 : 원자력공학과,
Publisher
한국과학기술원
Issue Date
1999
Identifier
150482/325007 / 000973471
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력공학과, 1999.2, [ vii, 65 p. ]

Keywords

검파; 측정; 이상류 수위; 초음파; Detection; Waveguide; Measurement; Two-phase mixture level; Ultrasonic; 웨이브가이드

URI
http://hdl.handle.net/10203/49401
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=150482&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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