Investigation on a pressure-gradient fiber laser hydrophone

	Investigation on a pressure-gradient fiber laser hydrophone
	Zhang WT (Zhang Wentao) ; Zhang FX (Zhang Faxiang) ; Li F (Li Fang) ; Liu YL (Liu Yuliang)
刊名	measurement science & technology
	2010
卷号	21 期号:9,sp. iss.页码:art. no. 094037
关键词	fiber laser hydrophone pressure compensation pressure-gradient
合作状况	其它
英文摘要	in this paper, a pressure-gradient fiber laser hydrophone is demonstrated. two brass diaphragms are installed at the end of a metal cylinder as sensing elements. a distributed feedback fiber laser, fixed at the center of the two diaphragms, is elongated or shortened due to the acoustic wave. there are two orifices at the middle of the cylinder. so this structure can work as a pressure-gradient microphone in the acoustic field. furthermore, the hydrostatic pressure is self-compensated and an ultra-thin dimension is achieved. theoretical analysis is given based on the electro-acoustic theory. field trials are carried out to test the performance of the hydrophone. a sensitivity of 100 nm mpa-1 has been achieved. due to the small dimensions, no directivity is found in the test.; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-09-07t12:09:07z no. of bitstreams: 1 investigation on a pressure-gradient fiber laser hydrophone.pdf: 644094 bytes, checksum: af4e41760b9f6e2e08278f491f5e9276 (md5); approved for entry into archive by 阎军(yanj@red.semi.ac.cn) on 2010-09-07t13:08:38z (gmt) no. of bitstreams: 1 investigation on a pressure-gradient fiber laser hydrophone.pdf: 644094 bytes, checksum: af4e41760b9f6e2e08278f491f5e9276 (md5); made available in dspace on 2010-09-07t13:08:38z (gmt). no. of bitstreams: 1 investigation on a pressure-gradient fiber laser hydrophone.pdf: 644094 bytes, checksum: af4e41760b9f6e2e08278f491f5e9276 (md5) previous issue date: 2010; this work was supported by the knowledge innovation program of the chinese academy of sciences under grant no iscas2008t05 and 863 program of china under grant no 2009aa11z212. the authors also wish to thank yuan yu, yan wang and xuecheng li for their help in the experiments.; 其它
学科主题	光电子学
收录类别	SCI
资助信息	this work was supported by the knowledge innovation program of the chinese academy of sciences under grant no iscas2008t05 and 863 program of china under grant no 2009aa11z212. the authors also wish to thank yuan yu, yan wang and xuecheng li for their help in the experiments.
语种	英语
公开日期	2010-09-07 ; 2010-10-15
内容类型	期刊论文
源URL	[http://ir.semi.ac.cn/handle/172111/13506]
专题	半导体研究所_光电系统实验室
推荐引用方式 GB/T 7714	Zhang WT ,Zhang FX ,Li F ,et al. Investigation on a pressure-gradient fiber laser hydrophone[J]. measurement science & technology,2010,21(9,sp. iss.):art. no. 094037.
APA	Zhang WT ,Zhang FX ,Li F ,&Liu YL .(2010).Investigation on a pressure-gradient fiber laser hydrophone.measurement science & technology,21(9,sp. iss.),art. no. 094037.
MLA	Zhang WT ,et al."Investigation on a pressure-gradient fiber laser hydrophone".measurement science & technology 21.9,sp. iss.(2010):art. no. 094037.