基于GSM通信的SZF型波浪浮标接收系统

SZF型波浪浮标是一种能自动、定点、定时（或连续）地对波浪水文要素进行测量的小型浮标自动测量系统。原本的SZF型波浪浮标系统的监测数据是通过岸站接收机进行数据接收。接收机可以符合野外接收需要,但为了能满足不同用户的需要,该文采用PC机接收,并编写友好的人机接收界面,实现数据的接收和使用。上位机接收系统使用VC＋＋开发,具备数据采集、实时显示、数据存储、数据查询功能。通过多次的试验检测和拷机测试,通信状况良好,能满足数据接收要求,提高了数据监测效率。该系统的开发大大地降低了海洋监测过程中的实时监测和后续数据处理的难度,可作为SZF型波浪浮标的配套软件进行推广。     

海洋波浪浮标检定装置的设计与实现

介绍了一种应用于重力加速度式波浪浮标的检定装置。对类似装置在国内外的发展现状和特点进行了归纳总结,重点介绍了此装置模拟波浪浮标在近似正弦运动规律海浪中运动的技术实现手段。该装置波高、波周期等主要技术性能指标大大优于国内外同类产品。     

航空机载激光波高计

在海洋专业组会议上，海洋波浪的观测被列为重要课题。已经采用立体照片来描述波高的图形，使用浮标式波高计测量波浪，并进一步计划用航空机载丰动式传感器来观测波浪。美国、加拿大等国正使用激光外形仪进行波浪和冰的观测。在本组会议上研究了包栝激光在内的各种测量方式的利弊，结果决定进行连续波相位差式激光波高计的原理实验。本文将叙述这些研究成果。     

Flash存储器在海洋资料浮标中的应用

介绍了一种大容量带有串行接口的Flash存储器在多功能波浪浮标上的应用。     

浮标型干扰机对机载塔康设备干扰效能评估与仿真

在随机海浪模型的基础上对影响浮标型干扰机的横摇运动进行分析,建立浮标型干扰机对机载塔康设备的干扰模型.通过仿真分析,给出了不同波浪等级、波浪方向、投掷偏角条件下浮标型干扰机的干扰效能.对结果进行了分析,为浮标型干扰机作战运用提供一定的参考依据.     

一种基于盲分离技术的声纳浮标场多目标定位算法

该文基于盲源分离的思想,针对由单传感器声纳浮标组成的声纳浮标场,在窄带背景下提出了一种新的声纳浮标场多目标定位算法。仿真实验结果表明,在很好地恢复了目标信号波形的同时,该算法能准确地估计出目标的位置。     

一种用于鱼塘增氧管理的智能浮标设计

实时检测鱼塘环境可及时了解鱼塘信息,并能把握鱼塘增氧时机。采用STM32F103C8作为主控器,设计了搭载三轴传感器、光敏电阻,温度传感器等多种传感器的智能鱼塘浮标,通过检测异常水面波动及水质清晰度来判断是否增氧。浮标可采用太阳能充供电,实现鱼塘节电、节水和减排。     

TMS320VC5402在加速度式波浪传感器中的应用

阐述以TMS320VC5402型DSP为核心的基于频域数值积分算法的加速度式波浪传感器设计。详细说明该波浪传感器的硬件设计和软件流程。介绍采用MATLAB-DSP系统级集成环境的DSP软件设计方法。该传感器调试简单,稳定性高,体积小。     

TMS320VC5402在加速度式波浪传感器中的应用

阐述以TMS320VC5402型DSP为核心的基于频域数值积分算法的加速度式波浪传感器设计.详细说明该波浪传感器的硬件设计和软件流程.介绍采用MATLAB-DSP系统级集成环境的DSP软件设计方法.该传感器调试简单,稳定性高.体积小.     

GPRS技术在SZF波浪浮标系统中的应用

简述将无线分组业务（GPRS技术）应用到SZF型波浪浮标远程监测系统中,通过GPRS网与Internet网的互联,实现数据的传输与远程监控。描述整个系统框架组成以及软件设计方案,使用VC中的WinSock控件和ADO技术,实现了数据通信和数据库管理功能。     

FBG-based ultrasonic wave detection and acoustic emission linear location system

The ultrasonic (US) wave detection and an acoustic emission (AE) linear location system are proposed, which employ fiber Bragg gratings (FBGs) as US wave sensors. In the theoretical analysis, the FBG sensor response to longitudinal US wave is investigated. The result indicates that the FBG wavelength can be modulated as static case when the grating length is much shorter than US wavelength. The experimental results of standard sinusoidal and spindle wave test agree well with the generated signal. Further research using two FBGs for realizing linear location is also achieved. The maximum linear location error is obtained as less than 5 mm. FBG-based US wave sensor and AE linear location provide useful tools for specific requirements.     

Study on the millimeter wave double-strip H-waveguide sensor

In this paper, we present a new kind of millimeter wave sensor which is constituted by double-strip H-wave-guide. This sensor has some major advantages such as big size, simple structure and good measurement performance. It is particularly suitable for measuring humidities of pellet materials at microwave band.     

A new photonic crystal fiber gas sensor based on evanescent wave in terahertz wave band: design and simulation

In this paper, we present the design of a new photonic crystal fiber （PCF） gas sensor for evanescent-field sensing in terahertz （THz） wave band. This sensor can be used to identify the gas, and its size is very large, so that it is beneficial to fill it with the test substance. Based on simulation, we demonstrate that the gas sensor using PCFs with four noncir- cular large holes in the cladding has high sensitivity and low loss, the confinement loss is less than 0.007 dB/m, and the bending loss is very small. The new PCF gas sensor can detect kinds of gases, for example, if test gas is water va- por, it has obvious absorption peaks in THz band, and the sensitivities of gas sensor are 64% and 73% at 1.097 THz and 0.752 THz, respectively. Due to the ultra-low loss and high sensitivity of the model, the novel steering-wheel structured fiber is very suitable for evanescent-field sensing and the detection of chemical and biological products.     

EPS电感式转矩传感器正弦波振荡器的研究

为了满足电动助力转向电感式转矩传感器的需要，设计了一种简单、实用的正弦振荡器。该振荡器采用结型场效应管的压控电阻特性设计自动增益控制电路，通过合理选择元器件的参数抑制了信号幅度的温漂。实验表明，振荡器的输出信号幅度稳定、失真小，满足传感器振荡器的性能要求。     

An all fiber-optic sensor for surface acoustic wave measurements

A surface acoustic wave (SAW) sensor constructed from single-mode fiber-optic components is described. An analysis of reciprocal and nonreciprocal modes of operation of the sensor is presented. Results from measurements on a variety of SAW devices illustrate the use of the sensor. The amplitude sensitivity is 0.0003 Å for an integration time of 0.1 s.     

Submillimeter wave communication versus millimeter wave communication

This paper studies the performance of a submillimeter wave antenna operating between frequencies 0.1 THz and 10 THz with a 4-cyano-4-pentylbiphenyl [5CB] substrate. Since the size and shape of the antenna impact its gain/directivity, resonant frequency, bandwidth, and efficiency, the two antenna types considered in this paper are: (a) Rectangular Patch Antenna (RPA), and (b) Cylindrical Dielectric Resonator Antenna (CDRA). Here a submillimeter wave antenna is compared with a millimeter wave (a few GHz to 100 GHz) antenna. These popular mm-wave antennas are chosen for the submillimeter wave antenna in order to understand changes in their performance as the result of changes in their geometrical shape. FEldberechnung bei Korpern mit beliebiger Oberflache (FEKO) software is used for the design and calculation of the Three-Dimensional (3D) ElectroMagnetic (EM) patterns. This paper also concentrates on the design and analysis of a massive submillimeter wave Multiple-Input Multiple-Output (MIMO) (8 by 8) RPA and CDRA.     

本征型光纤倏逝波化学传感器的研究

为了克服传统光纤化学传感器的不足,本文提出基于倏逝波原理的本征型光纤化学传感器。根据光线理论数值分析了传感器几何结构参数,溶液折射率与灵敏度的关系。通过化学腐蚀方法制备出不同参数结构的传感器,进行实验系统设计,并用不同浓度亚甲基蓝对这些传感器进行了实验研究。实验结果与数值计算结果一致,传感区纤芯越细,越长,其灵敏度越高。为了提高传感器灵敏度并保证纤芯不至于太细而折断,应少减小传感器直径,有效增加其长度。     

海浪谱的选择对海面电磁波散射建模的影响

海浪谱的选择对Bragg共振散射建模的影响是海面电磁波散射建模的关键问题。首先简介了海浪谱的概念,然后选择RA(Romeiser-Alpers)谱进行了Bragg共振散射建模,最后选择另一种具有代表性的PM(Pierson-Moskowitz)谱进行了Bragg共振散射建模,并通过仿真实验对两种海浪谱及其用于Bragg共振散射建模的效果进行了比较分析。获得的结论对合理地选择海浪谱具有指导意义。     

连续波调频技术用复用的光纤气体多点传感系统

本文提出并实验完成了一种新型的光纤气体多点传感系统。利用连续波调频（FMCW）技术复用多个气体吸收型光纤传感器,成功地实现了有两个传感探头的气体传感器阵列,系统最小的可探测气体（乙炔）浓度大约为300ppm(2.5cm气体吸收盒,一个大气压）。