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1.
本文介绍了气体传感器、化学传感器的最新研制动态,旨在提醒人们关注这些重要领域的研制进展。  相似文献   

2.
传感器管理述评   总被引:8,自引:0,他引:8       下载免费PDF全文
罗开平  姜维  李一军 《电子学报》2010,38(8):1900-1907
 阐述了传感器管理的研究框架;综述了传感器级、平台级、网络级的传感器管理方法;回顾了传感器管理系统开发现状;分析了传感器管理的研究现状并展望了其未来研究的发展趋势.  相似文献   

3.
本文介绍一种新型集成压力传感器.它是利用集成电路技术和微机械加工技术相结合,将半导体力敏电阻和双稳态触发器电路结合在一起,制作触发器型集成压力传感器.文章对该类传感器的工作原理,电路结构进行了理论分析,并对实验结果进行了讨论.重点分析了噪声对传感器特性的影响,在测试电路中加入调控三角波电压,可以改善传感器的特性.  相似文献   

4.
庄庆德 《电子器件》1991,14(2):76-82
本文介绍了超声波传感器的基本原理,分类,应用;超声波发射器与接收器的结构,原理与应用.  相似文献   

5.
微波传感器及其应用   总被引:1,自引:0,他引:1  
本文论述了微波传感器的原理及其实现的技术途径,介绍了微波传感器的结构,种类和应用。  相似文献   

6.
本文简要地介绍了H^ -ISFET(氢离子敏场效应晶体管)的基本结构和工作原理,分析了目前多数常规H^ -ISFET在结构上的不足之处和对实际pH值测量结果的不利影响,提出了一种实用型背面接触式H^ -ISFET。同时,文中对该结构在版图设计和工艺设计中的有关问题,进行了有益的探讨。最后指出:这种背面接触式H^ -ISFET在实际pH值的测量中有较好的实用价值。  相似文献   

7.
微结构气体传感器的研究现状及展望   总被引:5,自引:0,他引:5  
对微结构气体传感器现有的各种结构形式和研究现状进行了综述,并对它的发展趋势进行了展望。  相似文献   

8.
本文论述了功能型光纤传感器,特别是干涉式功能型光纤传感器的性能特征,介绍了其现状及发展趋势.  相似文献   

9.
本文介绍了湿度传感器单元SYH-2的特性以及由它组成的湿度传感器SY-HS-210性能。  相似文献   

10.
全保偏光纤加速度矢量传感器的设计与实验   总被引:2,自引:0,他引:2  
阐述了全保偏光纤加速度矢量传感器的基本工作原理,进行了三维探头结构设计,对系统的谐振频率和加速度灵敏度进行了理论分析,并进行了一维光纤加速度传感器实验,验证了这种全保偏光纤加速度矢量传感器的谐振频率和加速度灵敏度理论分析和结构设计的合理性.  相似文献   

11.
The Hunt For The Kill Switch   总被引:1,自引:0,他引:1  
《Spectrum, IEEE》2008,45(5):34-39
This paper has described the issues on electronic circuits which are made for military equipments.The DoD of U.S. recently launched its most ambitious program yet to verify the integrity of the electronics that will underpin future additions to its arsenal. The Defense Advanced Research Projects Agency (DARPA), the Pentagon's R&D wing, and released details about a three-year initiative it calls the Trust in Integrated Circuits program. The findings from the program could give the military and defense contractors who make sensitive microelectronics like the weapons systems for the F-35 a guaranteed method of determining whether their chips have been compromised. The Trust program started its prequalifying rounds by sending to three contractors four identical versions of a chip that contained unspecified malicious circuitry, though U.S. military consumes only 1% of world's integrated circuits.  相似文献   

12.
谭朝文 《半导体光电》1994,15(3):209-216
由于金属-半导体-金属光电探测器潜在的优点,用于光通信、高速片到片互连、以及光控受到极大关注,文中介绍这种光探测器及其与放大器单片集成的最新进展。  相似文献   

13.
FRACAS信息化技术的运用   总被引:1,自引:0,他引:1  
本文介绍了FRACAS信息化技术的背景、概念、方法和流程,阐述了其应用的必要性和预期效果,并结合Relex FRACAS软件对主要的工作流程进行描述.  相似文献   

14.
The global positioning system   总被引:1,自引:0,他引:1  
The paper provides a top-level perspective on how the global positioning system works, how its services are used, and delves into the most important technical and geo-political factors affecting its long-term availability in an international setting  相似文献   

15.
The discrete polynomial-phase transform   总被引:12,自引:0,他引:12  
The discrete polynomial-phase transform (DPT) is a new tool for analyzing constant-amplitude polynomial-phase signals. The main properties of the DPT are its ability to identify the degree of the phase polynomial and to estimate its coefficients. The transform is robust to deviations from the ideal signal model, such as slowly-varying amplitude, additive noise and nonpolynomial phase. The authors define the DPT, derive its basic properties, and use it to develop computationally efficient estimation and detection algorithms. A statistical accuracy analysis of the estimated parameters is also presented  相似文献   

16.
本文首先论述了集成电路项目管理的重要性,接着介绍了集成电路项目管理的基本内容,并详细介绍了专用集成电路研发阶段项目管理的具体内容。  相似文献   

17.
This paper describes a new type of planar thin-film cryotron namely, an in-line cryotron, and compares its advantages to the crossed-film cryotron. This cryotron has its gate and control elements superimposed and parallel, or in-line, whereas the crossed-film device has its gate and control elements crossed at right angles. The gain curve for the in-line cryotron has a region where incremental gains of one to ten may be obtained without a change in the gate-to-control width ratio Wg/Wc whereas large gains are not possible for the crossed-film cryotron without altering the width ratio. Larger gate resistances are possible within the in-line cryotron and calculations are given to show it is feasible to properly terminate low impedance strip transmission lines with characteristic impedances in the range of 0.1 to 1.0 ohms. It is necessary to properly terminate the strip transmission lines commonly used in superconducting circuit fabrication in order to achieve the maximum circuit switching speeds. Other advantages and the disadvantages of the in-line cryton are also discussed.  相似文献   

18.
Super FEC技术   总被引:1,自引:0,他引:1  
刘爱珊  杨名 《光通信研究》2002,(4):13-15,21
结合现有的SuperFEC产品介绍了SuperFEC技术,就其发展现状指出了SuperFEC存在的非标准性和非透明性的缺陷,并提出了SuperFEC规范化的方法。  相似文献   

19.
20.
《Spectrum, IEEE》2008,45(12):36-41
Car buyers everywhere are spurning gas guzzlers, and some carmakers feel the pain more than others. Take Mercedes-Benz, long known for its luxury cars?its flagship S-Class is a full-size sedan that starts at around US $90,000. Without sacrificing performance or comfort, the company must meet the expectations of its increasingly environmentally conscious customers.  相似文献   

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