유속 및 파이프 두께 측정 겸용 초음파 트랜스듀서 개선Improvement of an Ultrasonic Transducer for Measuring Both Flow Velocity and Pipe Thickness
- Other Titles
- Improvement of an Ultrasonic Transducer for Measuring Both Flow Velocity and Pipe Thickness
- Authors
- 김주완; 김진오
- Issue Date
- Apr-2016
- Publisher
- 한국소음진동공학회
- Keywords
- Transducer; Ultrasound; Propagation; Pipe Thickness; Flow Velocity; 변환기; 초음파; 전파; 파이프 두께; 유속
- Citation
- 한국소음진동공학회논문집, v.26, no.2, pp.148 - 156
- Journal Title
- 한국소음진동공학회논문집
- Volume
- 26
- Number
- 2
- Start Page
- 148
- End Page
- 156
- URI
- http://scholarworks.bwise.kr/ssu/handle/2018.sw.ssu/8104
- DOI
- 10.5050/KSNVE.2016.26.2.148
- ISSN
- 1598-2785
- Abstract
- The paper deals with improvement of a piezoelectric ultrasonic transducer for measuring both pipe thickness and flow velocity. The transducer structure is based on the conventional transducers for measuring flow velocity by obliquely transmitting ultrasonic waves to the flow direction. The transducer invented earlier for measuring flow velocity and pipe thickness had an advantage of including only one piezoelectric disc, but for the thickness measurement the ultrasonic wave had to be reflected twice in a wedge material to be transmitted vertically to a pipe, and thus the wave signal was too weak. The transducer has been improved to transmit waves for thickness measurement vertically to a pipe without any prior reflection by electrically connecting two piezoelectric discs, one for flow velocity and the other for pipe thickness measurement. By comparing the measured results of specimen thickness with the improved transducer and conventional transducers, the accuracies of the improved one have been evaluated in the pipe thickness measurements.
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