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- optical fibre acoustic sensor 光纤声压传感器
- fibre acoustic sensor 光纤声传感器
- A sensor channels the light signal along an optical fibre. 传感器沿光导纤维输送光信号。
- ALCATEL SHANGHAI OPTICAL FIBRE CABLE CO.LTD. 上海阿尔卡特光缆有限公司。
- A new type of optical fiber underwater acoustic sensor (hydrophone) constructed with two fiber Bragg gratings (FBG) with signal self-demodulation function is presented. 提出了一种新型的光纤布拉格光栅(FBG)水声传感探头结构以及光纤光栅传感信号的自解调方法。
- The composition difference between optical fibre plate HMB and CMB was studied. 研究了HMB和CMB两种光学纤维面板的成分差异。
- The time-varying Lorentz force causes ions vibrate in the medium, which can be detected by a sensitive acoustic sensor non-invasively. 变化的洛仑兹力使媒质中的离子发生振动,这个振动可由外部的声传感器灵敏而无创地检测到。
- the optic fibre Bragg grating sensor (FBG) 光纤Bragg光栅传感器
- Is it possible that an acoustic sensor which size is only 10 cm can form a narrow directivity with a constantbeam of 20 degree? 尺度仅为10cm的声传感器能在数赫兹到数千赫兹的低频宽带范围内形成束宽为20余度的恒定束宽窄指向性吗?
- It is already being used in the 1.8km 8.448 Mb/s PCM-120 route optic fibre telephone communication system. 已用于1.;8公里;8
- Passive acoustic DoA(Direction-of-Arrival)estimate using acoustic sensor array is a kind of key technology in intelligent mine system. 被动声定位是智能地雷的关键技术之一,其中声传感器阵列测向确定了目标的方位角信息。
- By the end of 1997, about 1 020 000 homes were passed by Wharf Cable's MMDS network, and about 503 000 homes were served by its optical fibre network. 截至一九九七年底，九仓有线电视利用微波方式传送节目的服务已直达逾102万个家庭，而利用光纤有线网络直达的家庭则约有503000个。
- The built system could pick up sound signals within effective time by acoustic sensor and the MFCC characteristic parameter was chosen as observation sequence. 论文阐述了通过软件方式根据声音信号识别阀门泄漏的方法。
- The extra channels offered on the optical fibre network are mostly additional pay-per-view movie channels and an international home shopping channel. 用光纤网络收看节目的观众则可观看更多自选节目和一个购物台。
- interferometric optical fiber acoustic sensor 干涉型声光纤声传感器
- The structure and characterization of optical fibre voltage and elec- tric field sensors are deseribed. 本文叙述了光纤电压电场传感器的结构和性能。
- The ability of the optical fibre conveying microwave, which changed the basic technology of the radar and EW. 光纤传送微波的能力改变了雷达和电子战的基本技术基础。
- YOFC shanghai possesses a wide range of optical fibre cable accessories, service complete solution for ftth. 为最终实现光纤到户提供全面解决方案。
- Using the pressure-frequency characteristic, the GaAs cantilever acoustic sensor based on RTD is designed and processed by the control hole technology firstly, and the process integration of RTD and micro-mechanical technology is implemented. 利用此压力-频率转换特性;首次设计并利用微机械控制孔技术加工制作了基于RTD的GaAs基悬臂式声传感器结构;实现了RTD与GaAs基微机械加工技术的工艺集成.
- An optical fibre link needs a photo detector to convert the incoming light pulses into electrical signals. 光导纤维纽带需要图片检测器把输入脉冲转化为电子信号。
