|本期目录/Table of Contents|

 激光超声溢油油膜厚度遥测方法试验研究(PDF)

《纳米技术与精密工程》[ISSN:1672-6030/CN:12-1351/O3]

期数:
2017年3期
页码:
159-167
栏目:
精密测量
出版日期:
2017-05-15

文章信息/Info

Title:
 Experimental Study on Thickness Measuring Method of Oil-on-Water Using Laser-Ultrasonic Technique
文章编号:
1672-6030(2017)03-0159-09
作者:
 李一博 齐翔 王会芳
 天津大学精密仪器与光电子工程学院, 天津300072
Author(s):
 Li Yibo Qi Xiang Wang Huifang
 School of Precision Instrument and Opto-Electronics Engineering, Tianjin University, Tianjin 300072, China
关键词:
 激光超声 油膜厚度 脉冲激光器 扫描式激光多普勒测振仪 二次相关
Keywords:
 laser-ultrasonic oil film thickness pulse laser scanning laser Doppler vibrometer second correlation
分类号:
TH711; TH7419
DOI:
10.13494/j.npe.20150119
文献标识码:
A
摘要:
针对我国目前缺乏测量距离远、精度高、量程大的海洋溢油油膜厚度遥测系统的问题,基于激光超声测量油膜厚度原理,提出了一种基于激光激发超声和激光多普勒测振仪测量的溢油油膜厚度测量方法,使用355 nm大能量脉冲激光器在油膜表面激发超声波,使用扫描式激光多普勒测振仪对油膜表面振动信号进行检测,通过二次相关法对超声波在油膜内传播的时间进行估计进而计算油膜厚度.搭建试验系统,在实验室条件下对不同厚度的油膜样品进行了测量,测量结果表明该试验系统油膜厚度测量结果与直尺直接测量结果相一致,实现了对溢油油膜厚度的测量,可应用于海洋溢油油膜厚度遥测.
Abstract:
 Nowadays, remote thickness measurement systems of oil spill on the sea with high accuracy and large range are absent in China. Based on laser-ultrasonic technique and laser Doppler vibrometer, a method of oil-on-water’s thickness measurement is presented. A 355 nm pulse laser was used to generate ultrasonic waves on the oil surface and a scanning laser Doppler vibrometer was used to remotely detect the surface motion of the oil. The second correlation method was used to estimate the ultrasonic wave’s traveling time which was used to calculate thickness of the oil film. The experimental system has been established and applied to measuring thicknesses of oil-on-water samples in the laboratory. The experimental results show that the experimental system can measure the thickness of oilonwater and can be applied to measuring thickness of oil spill on the sea.

参考文献/References

备注/Memo

备注/Memo:
收稿日期: 2016-01-12.
基金项目: 天津市科技计划资助项目(14ZCZDGX00003);天津市应用基础与前沿技术研究计划资助项目(13JCYBJC18000).
作者简介: 李一博(1973— ),男,博士,副教授.
通讯作者: 李一博,slyb@tju.edu.cn.
更新日期/Last Update: 2017-07-11