深度整合光纤通信和传感系统,使用前向传输分布式振动传感和开关键
Runlong Zhu1,2, Xing Rao1,2, Shangwei Dai1,2
1Shenzhen Key Laboratory of Ultrafast Laser Micro/Nano Manufacturing, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China.
Sensors (Basel, Switzerland)
|September 14, 2024
概括
这项研究证明了光纤通信和振动传感的深度整合,使得成本效益高的海洋监测成为可能. 该系统允许同时传输数据和检测振动,而不会影响性能.
科学领域:
- 光电学是指光电子产品.
- 光纤传感传感器是指光纤传感器.
- 电信 电信服务 电信服务 电信服务
背景情况:
- 光纤系统对于通信和海洋监测至关重要.
- 将传感器集成到现有基础设施中,可以提供具有成本效益的升级.
- 分布式光纤振动传感 (DFVS) 是监控的一个关键技术.
研究的目的:
- 为了证明向前传输DFVS与开启关闭 (OOK) 通信系统的深度集成.
- 显示通信和传感功能之间的兼容性和评估性能影响.
- 验证海洋活动监测的综合传感的非侵入性.
主要方法:
- 综合光纤通信和传感的概念验证演示.
- 利用现有的光纤电缆,波长通道和解调接收器进行传感.
- 在数据传输中使用开关键化 (OOK) 调制方案.
主要成果:
- 实现了150 Mb/s的数据传输,比特错误率 (BER) 为2.8 × 10-7和Q因子为14.1.
- 证明了距离,时间,频率,强度和相位的振动监测.
- 传感器在101.3公里内以1kHz的频率实现了8.3 pε/Hz1/2的检测极限 (LoD).
结论:
- 在不影响性能的情况下,DFVS和OOK通信的深度集成是可行的.
- 综合系统为升级现有光纤基础设施提供了具有成本效益的解决方案,以加强监控.
- 这项技术可实现各种应用的非侵入性,高性能传感,包括海洋活动监测.
相关概念视频
Design Example
321
The innovation of touch-tone telephony revolutionized the telecommunications industry by replacing the traditional rotary dial with a dual-tone multi-frequency (DTMF) signaling system. This system uses a matrix-style keypad with buttons arranged in four rows and three columns, creating 12 distinct signals each assigned to a pair of frequencies. Each button press results in a simultaneous generation of two sinusoidal tones – one from a low-frequency group (697 to 941 Hz) and one from a...
321
Discrete Fourier Transform
228
The Discrete Fourier Transform (DFT) is a fundamental tool in signal processing, extending the discrete-time Fourier transform by evaluating discrete signals at uniformly spaced frequency intervals. This transformation converts a finite sequence of time-domain samples into frequency components, each representing complex sinusoids ordered by frequency. The DFT translates these sequences into the frequency domain, effectively indicating the magnitude and phase of each frequency component present...
228
Electronic Distance Measuring Instruments
29
Electronic Distance Measuring Instruments (EDMs) are essential tools in modern surveying, offering precise distance measurements by emitting electromagnetic signals and calculating the time required for these signals to travel to a target and return. Two primary types of signals are used in EDMs — light waves and microwaves — each suited to specific environmental and distance requirements. Light-wave-based EDMs utilize either infrared or laser light, providing high accuracy over short...
29
IR Spectrum Peak Splitting: Symmetric vs Asymmetric Vibrations
942
Identical bonds within a polyatomic group can stretch symmetrically (in-phase) or asymmetrically (out-of-phase). Similar to hydrogen bonding, these vibrations also influence the shape of the IR peak. Generally, asymmetric stretching frequencies are higher than symmetric stretching frequencies. For example, primary amines exhibit two distinct IR peaks between 3300–3500 cm−1 corresponding to the symmetric and asymmetric N-H stretching, while secondary amines exhibit a single...
942
Energy Stored In A Coaxial Cable
1.4K
A coaxial cable consists of a central copper conductor used for transmitting signals, followed by an insulator shield, a metallic braided mesh that prevents signal interference, and a plastic layer that encases the entire assembly.
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
In the simplest form, a coaxial cable can be represented by two long hollow concentric cylinders in which the current flows in opposite directions. The magnetic field inside and outside the coaxial cable is determined by using Ampère's law. The magnetic...
1.4K
Electro-mechanical Systems
928
Electromechanical systems are intricate configurations that effectively combine electrical and mechanical elements to achieve a desired outcome. Central to many of these systems is the DC motor, a device that converts electrical energy into mechanical motion, enabling various applications ranging from simple fans to complex robotic mechanisms.
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
A key component of the DC motor is the armature, a rotating circuit positioned within a magnetic field. As an electric current passes through the...
928


