Studies on the transducers of clamp-on transit-time ultrasonic flow meter

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 机器人学研究室

	Studies on the transducers of clamp-on transit-time ultrasonic flow meter
	Han JP(韩建平); Liu H(刘浩); Zhou YY(周圆圆); Zhang RM(张如美); Li ZJ(李长吉)
	2014
会议名称	2014 4th IEEE International Conference on Information Science and Technology
会议日期	April 26-28, 2014
会议地点	Shenzhen, China
关键词	Ultrasonic flow meter Transducer Ultrasonic frequency Incident angle Installation distance
页码	180-183
中文摘要	The clamp-on transit-time ultrasonic flow meters are widely applied for the advantage of noninvasive measurement and convenient deployment. Its key point lies on measuring of the time difference between the upstream and downstream. While high quality of the transducer transmitting/receiving ultrasonic signals is the premise of measuring time difference accurately. This paper studies on the main factors contributing to the uncertainty of the transducer’s output signal and focuses on the transducer’s frequency, incident angle and the separate distance. The selection principle of transducer’s frequency is presented by the analysis of the ultrasonic attention characteristics in the liquid. The incident angle range and precise installation distance of the transducers are calculated and analyzed by Snell’s law. Experiments are also carried out with the 1MHz transducers clamped on the aluminium pipe of 20mm outer diameter. The results show that the accurate calculation separate distance 18.16mm is effective to guarantee the output of high quality ultrasonic wave. If the axial installation error reaches more than 3mm, the one beam of ultrasonic signal cannot be guaranteed.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议录	Proceedings of 2014 4th IEEE International Conference on Information Science and Technology
会议录出版者	IEEE
会议录出版地	Piscataway, NJ, USA
语种	英语
ISBN号	978-1-4799-4808-6
WOS记录号	WOS:000364968700043
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/15397]
专题	沈阳自动化研究所_机器人学研究室
推荐引用方式 GB/T 7714	Han JP,Liu H,Zhou YY,et al. Studies on the transducers of clamp-on transit-time ultrasonic flow meter[C]. 见:2014 4th IEEE International Conference on Information Science and Technology. Shenzhen, China. April 26-28, 2014.