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Development of Optical Voltage Transducer Based on Dual-Mode Highly Elliptical-Core Polarization Maintenance Fiber

Journal of Electronic Science and Technology of China 2008年第4期6卷 492-495页

作者： Wei-Hong Bi Feng Liu Xuan Guo School of Information Science ＆Engineering University of Yanshan Q＇mhuangdao. 06.6004 China

This paper describes an optical voltage transducer （OVT） for the 35 kV electric power system based on modular interference in dual-mode highly elliptical-core polarization maintenance fiber （E-Core PMF）. The temperature and environmental perturb- bation can be compensated automatically. In the scheme, a quartz crystal cylinder wrapped with highly elliptical-core fiber plays the role of voltage sensor head. The two interference output lobes＇ intensity from the E-core PMF is modulated with the converse piezoelectric effect of quartz crystal. A PZT wrapped with E-core PMF at ground potential serves as the static modular phase difference control and temperature compensation unit. The experiment results indicate that the OVT designed in this paper has satisfying performance and could successfully rejects the temperature perturbation.

关键词： Converse piezoelectric effect dualmode fiber modular interference optical voltage transducer quartz crystal temperature compensation.

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THE DEVELOPMENT OF A GENERAL ANISOTROPIC MATERIAL MODEL WITH RESONANT ULTRASOUND SPECTROSCOPY TECHNOLOGY FOR THE MEASUREMENT OF ELASTIC CONSTANTS OF PIEZOELECTRIC crystalS

THE DEVELOPMENT OF A GENERAL ANISOTROPIC MATERIAL MODEL WITH...

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2013全国压电和声波理论及器件技术研讨会

作者： Zhen WANG Ji WANG Yanqing ZHENG Fapeng YU Sergei ZHGOON Tingfeng MA Piezoelectric Device Laboratory School of Mechanical Engineering & MechanicsNingbo University Shanghai Institute of Ceramics Chinese Academy of Sciences State Key Laboratory of crystal Materials and Institute of crystal Materials Shandong University National research University Moscow Power Engineering Institute

The mechanical resonant response of a solid depends on its shape,density,and elastic *** describe here the computational methods based on a general anisotropic material model for obtaining and analyzing the resonant frequencies of small samples,and provide examples to demonstrate the utilization and *** new material types with six and thirteen independent elastic constants are formulated and tested with the *** study will lead to expansion of software capability for the testing of novel materials with current instrumentation.

关键词： Elastic Constants RUSpec Technology quartz crystal Levenberg-Marquardt Method

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A NOVEL IMMOBILIZATION METHOD FOR PIEZOELECTRIC IMMUNOSENSOR WITH HIGH SENSITIVITY AND GOOD STABILITY

A NOVEL IMMOBILIZATION METHOD FOR PIEZOELECTRIC IMMUNOSENSOR...

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2013全国压电和声波理论及器件技术研讨会

作者： Yan CHEN Xian-he HUANG Hong CHEN Hua-shan SHI School of Automation Engineering University of Electronic Science and Technology of China Guangan Vocational and Technical College State Key Laboratory of Biotherapy and Cancer Center West China HospitalWest China Clinical Medicine SchoolSichuan University

The immobilization of cancer antigens onto the surface of piezoelectric immunosensor by a novel method was presented and evaluated for its potential use in early cancer detection.A 3rd overtone 10MHz AT-cut quartz crystal resonator was applied to detect the antibody of NuTu-19 ovarian cancer cell in serum samples using this novel immobilization *** NuTu-19ovarian cancer cells were planted on the electrode surface,the resulting very small mass change is then transformed into the change in frequency of crystal resonator.A self-made frequency counter was employed to display the frequency *** change in resonance frequency was from 108 to *** antibody content of NuTu-19 detected in immunized serum samples was 341ng/ul,and only 8%deviation compare to the data obtained from the protein quantification *** immobilization method gave good results in terms of sensitivity,reproducibility and stability.

关键词： Piezoelectric immunosensor quartz crystal Immobilization Stability Ovarian cancer cell

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A BRIEF VIEW OF THE CURRENT STATE OF THE DEVELOPMENT AND AGING PERFORMANCE OF FIXED FREQUENCY SURFACE ACOUSTIC WAVE(SAW) OSCILLATOR

A BRIEF VIEW OF THE CURRENT STATE OF THE DEVELOPMENT AND AGI...

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2012全国压电和声波理论及器件技术研讨会

作者： C.S.LAM P.Y.SU C.H.CHEN TXC Technology Inc.MilpitasCaliforniaUSA TXC Corporation

The recent rapid expansion of optical fiber networking market fuels the demand for accurate 10000 MHz fixed frequency oscillators based on surface acoustic wave(SAW) ***,several suppliers can offer small size and cost efficient SMD single-end and differential SAW oscillators(SOs) with very good phase jitter *** customers prefer SO solution as it is free of the unsettling problems from some crystal oscillator(XO) solutions- high cost of high frequency fundamental(HFF) and inverted mesa(IM) crystal blanks,spurious modes,frequency jumping,drive level sensitivity,high cost of phase lock loop(PLL) die,*** paper is to provide a brief view of the current state of the development of fixed frequency *** on the aging data of more than 20,000 hours at 125℃,the authors also comment on the SO aging performance fabricated using different SAW wave-types.

关键词： SAW Oscillator quartz crystal Aging

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