摘要
为提高光纤传感定位系统的定位精度,结合传统DMZI定位方法和普通光路技术的优点,提出了一种基于普通光路技术的双马赫-曾德尔干涉仪光纤传感定位系统。采用互相关时延算法对信号进行滤波降噪,有效减小了噪声信号,时差的准确性得到大幅提高。结果表明,在相同条件下,与传统的DMZI光纤传感定位系统相比,基于普通光路的双马赫-曾德尔干涉仪的光纤传感定位系统的定位灵敏度更高,定位稳定性更好,定位误差更小。该研究验证了改进后的系统能有效提高定位精度和定位稳定性,可以提高煤矿井下应急救援的效率。
This paper aims to improve the positioning accuracy of fiber optic sensing and positioning system and proposes a dual-mach zendler interferometer(DMZI)fiber sensing and positioning system based on conventional DMZI positioning method and common optical path technology.The method involves filtering and reducing the noise of the signal using the cross-correlation delay algorithm and thereby enables an effective reduction in the noise signal and greater improvement in the accuracy of the time difference.The results show that given the same conditions,compared with the existing DMZI fiber sensing and positioning system,the optical fiber sensing and positioning system based on the ordinary optical path double Mach zendler interferometer could provide a higher positioning sensitivity,a better positioning stability,and thus a greatly reduced positioning error.The study verifies that the improved system could aid in effectively improving the positioning accuracy and stability,and the efficiency of underground emergency rescue.
作者
郭继坤
曹权
贾皓翔
Guo Jikun;Cao Quan;Jia Haoxiang(School of Electrical&Control Engineering,Heilongjiang University of Science&Technology,Harbin 150022,China;School of Electronics&Information Engineering Heilongjiang University of Science&Technology,Harbin 150022,China)
出处
《黑龙江科技大学学报》
CAS
2019年第6期720-724,共5页
Journal of Heilongjiang University of Science And Technology
基金
国家重大科学仪器设备开发专项项目(2012YQ150213)
关键词
定位系统
光纤振动传感器
普通光路技术
双马赫-曾德尔干涉仪
positioning system
fiber optic vibration sensor
ordinary optical path technology
double mach zendell interferometer
作者简介
第一作者简介:郭继坤(1968-),男,黑龙江省肇源人,教授,博士,研究方向:矿山安全检测与控制,E-mail:gst1994@163.com。
