全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

高浓度悬浮泥沙的声学观测

, PP. 54-60

Keywords: 高浓度悬浮泥沙,声学观测,声衰减测量原理

Full-Text   Cite this paper   Add to My Lib

Abstract:

在分析高浓度悬浮泥沙的声衰减机理和进行实验研究的基础上,研制了两种型号的超声波观测仪器(UBD-500/1500超声重度计)用于悬浮泥沙浓度剖面的连续和实时观测,并且已经在长江口航道的浮泥探测、黄河小浪底水库的泥沙观测中得到应用.讨论了测量原理和仪器的设计、标定等问题.这种基于声衰减测量原理的观测仪器的主要优点是标定简便和稳定,含沙量观测范围为10~800kg/m3,标定后的测量误差可达±5%(F.S).

References

[1]  张叔英,李允武.悬浮泥沙声学观测的原理分析[J].声学学报,1999,24:269-274.
[2]  SHI Zhong, REN Lai-fa, ZHANG Shu-ying, et al. Acoustic imaging of cohesive sediment resuspension and re-entrainment in the Changjiang Estuary, East China Sea[J]. Geo-Mar Lett, 1997, 17: 162-168.
[3]  THORNE P D, VINCENT C E, HARDCASTLE P J, et al. Measuring suspended sediment concentration using acousticbackscatter devices[J]. Marine Geology, 1991, 98: 7-16.
[4]  LIBICKI C, BEDFORD K W, LYNCH J F. The interpretation and evaluation of a 3 MHz acoustic backscatter device for measuring benthic boundary layer sediment dynamics[J]. J Acoust Soc Am, 1989, 85: 1 501-1 511.
[5]  LAMB H. Hydrodynamics[M]. 6th ed, Cambridge: Cambridge University Press, 661.
[6]  张叔英,李允武.声学悬浮泥沙观测系统的研制和应用[J].海洋学报,1998,20:114-119.
[7]  郭纪捷,任来法,李允武声学悬浮泥沙观测数据的现场标定研究[J].海洋学报,1998,20:120-125.
[8]  HAMILTON L J, SHI Zhong, ZHANG Shu-ying. Acoustic backscatter measurements of estuarine suspended cohesive sediment concentration profiles[J]. J Coast Res, 1998, 14:1 213-1 224.
[9]  HANES D M, VINCENT C E, HUNTLEY D A, et al. Acoustic measurements of suspended sand concentration in the C2S2experimentat at Stanhope Edward Island [J]. Marine Geology, 1988, 81: 185-196.
[10]  HAY A E, SHENG J. Vertical profiles of suspended sand concentration and size from multi-frequency acoustic backscatter[J]. J Geophys Res, 1992, 97(C10): 15 661-15 677.
[11]  孙承维,魏墨盒高浓度悬浮液声学特性的探讨[J].声学技术,1983,2:1-6.
[12]  钱祖文.颗粒介质中声衰减的浓悬浮粒子理论及其应用.物理学报,1988,37:64-70
[13]  许能贵,殷志贤.浑水的声衰减[J].应用声学,1985,4:36-38.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133