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Chinese Chemical Letters 2005年第4期16卷 509-512页

作者： LiShunFENG JingTianHU QiKANG ChangYingGUO DaZhongSHEN SchoolofChemistryandChemicalEngineering ShandongUniversityJinan250100／／DepartmentofChemistryDezhouUniversityDezhou253023 SchoolofChemistryandChemicalEngineering ShandongUniversityJinan250100

An unexpected frequency response for a piezoelectric quartz crystal (PQC) sensor to liquid density and viscosity was reported. For a PQC oscillating in a liquid phase, the frequency shifts (?f ) show a wave-shape response to liquid density (ρ) and viscosity (η) in fine structure, if the longitudinal wave effect was not eliminated. This result is different from the well-known linear relationship between of ?f and (ρη)1/2. An oscillating frequency-temperature curve of the sensor was observed and explained.

关键词： Piezoelectric sensor quartz crystal liquid property longitudinal wave.

The Characteristics of the Shear-Vibrating quartz crystal Resonator

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稀有金属材料与工程 2006年第A03期35卷 627-629页

作者： Wenjie Tian Lingling Liu Junling Lu Fuxue Zhang Research Center of Sensor Technology Beijing Information Technology Institute Beijing 100101 China Department of Physics Tsinghua University Beijing 100084 China

According to the piezoelectric equation and the vibration theory of the quartz crystal,the relations between the vibrating frequency and structural parameters under the thickness-shear-vibration of AT-cut quartz crystal have been studied. The frequency conditions under which quartz crystal resonator formed stationary wave inside the electrode district and the transmission characteristics of wave outside the electrode district have also been discussed.A quartz crystal resonator was developed based on this *** experiment showed that the force-sensing characteristics were independent of the fixation of the crystal *** detecting distinguish ability was up to 0.001°,and the short-term frequency stability was up to 1.38×10~ (-10)/min.

关键词： quartz crystal shear-vibration stationary wave characteristic quartz resonator

The Characteristics of the Shear-Vibrating quartz crystal Resonator

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稀有金属材料与工程 2006年第S3期 627-629页

作者： Wenjie Tian~1 Lingling Liu~1 Junling Lu~2 Fuxue Zhang~1 (1.Research Center of Sensor Technology,Beijing Information Technology Institute,Beijing 100101,China) (2.Department of Physics,Tsinghua University,Beijing 100084,China)

关键词： quartz crystal shear-vibration stationary wave characteristic quartz resonator

THE MEASUREMENT OF ELASTIC CONSTANTS OF quartz crystal BY RESONANT ULTRASOUND SPECTROSCOPY

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THE MEASUREMENT OF ELASTIC CONSTANTS OF QUARTZ CRYSTAL BY RE...

A newly welded quartz crystal

2012全国压电和声波理论及器件技术研讨会

作者： Zhen WANG Ji WANG Xiang-wu XU Jian-ke DU Ting-feng MA Piezoelectric Device Laboratory School of Mechanical Engineering ＆ MechanicsNingbo University

The mechanical resonant response of a solid depends on its shape,density,and elastic *** describe here the instrumentation and computational methods for obtaining and analyzing the resonant frequency of very small（0.001 cm3）samples,and provide examples to demonstrate the utilization of the technique.A new material type with six independent elastic constants are formulated and tested with the *** study will leads to expansion of the software capability for the testing of novel materials.

关键词： Elastic constants Resonant Ultrasound Spectroscopy quartz crystal Levenberg-Marquardt method

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A newly welded quartz crystal

The Correction Factors of Mindlin Plate theory with and without electrodes for SC-cut quartz crystal plates

2011年全国压电和声波理论及器件应用研讨会

作者： Chong-zhu Ma~1 Yu-Guo Li~(2,*) Beijing chenjing electronics co.,ltd(707 factory).Beijing 100015

＜正＞Here a kind of newly designed quartz crystal suit for space application is *** is designed and fabricated the first time in ***,electrically connection is made to the quartz resonator electrodes by an electrical... 详细信息

关键词： quartz crystal space application weld connection

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The Correction Factors of Mindlin Plate theory with and with...

AN ANALYSIS OF FREQUENCY OF A quartz crystal TUNING FORK RESONATOR BY MODIFIDY SEZAWA’S THEORY

2011年全国压电和声波理论及器件应用研讨会

作者： Ji WANG,Gui-jia CHEN,Yang-yang CHEN,Rong-xing WU,Jian-ke DU Piezoelectric Device Laboratory,School of Mechanical Engineering and Mechanics,Ningbo University,818 Fenghua Road,Ningbo,Zhejiang 315211,China

＜正＞Mindlin plate theory was first developed to provide much accurate solutions for vibrations of thickness-shear mode, which has a much higher frequency than the usual flexure *** has been widely used in the analys... 详细信息

关键词： Mindlin plate theory thickness-shear vibration correction quartz crystal

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AN ANALYSIS OF FREQUENCY OF A QUARTZ CRYSTAL TUNING FORK RES...

Etching of quartz crystals in liquid phase environment:A review

2012全国压电和声波理论及器件技术研讨会

作者： Xiang-wu XU Ji WANG Zhen WANG Ting-feng MA Jian-ke DU Piezoelectric Device Laboratory School of Mechanical Engineering and MechanicsNingbo University

The resonance frequency of a quartz crystal tuning fork resonator for applications in communication and electronic system has been analyzed by Sezawa with Euler-Bernoulli beam theory and *** improve the accuracy in the vibration frequency and mode shape prediction,the Timoshenko beam theory is used with the resonator model and boundary *** solution procedure is the same and the results are different with noticeable *** reminds us that the analytical solutions are to be validated with other techniques before it can be used in the resonator design and *** emerging applications of tuning fork type resonators through MEMS technology demands further analytical studies with new approaches.

关键词： Tuning fork Frequency quartz crystal Resonator Beam Vibration

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Nanotechnology and Precision Engineering 2024年第2期7卷 87-109页

作者： Yide Dong Yike Zhou Haizhou Huang Bosong Zhang Xihan Li Kaiwen Chen Litao Sun Guangbin Dou SEU-FEI Nano-Pico Center Key Laboratory of MEMS of Ministry of EducationSoutheast UniversityNanjing 210096People’s Republic of China Nanjing Jingxin Optoelectronics Research Institute Nanjing 210096People’s Republic of China

quartz crystals are the most widely used material in resonant sensors,owing to their excellent piezoelectric and mechanical *** the development of portable and wearable devices,higher processing efficiency and geometrical precision are *** etching has been proven to be the most efficient etching method for large-scale production of quartz devices,and many wet etching approaches have been developed over the ***,until now,there has been no systematic review of quartz crystal etching in liquid phase ***,this article provides a comprehensive review of the development of wet etching processes and the achievements of the latest research in thisfield,covering conventional wet etching,additive etching,laser-induced backside wet etching,electrochemical etching,and electrochemical discharge *** each technique,a brief overview of its characteristics is provided,associated problems are described,and possible solutions are *** review should provide an essential reference and guidance for the future development of processing strategies for the manufacture of quartz crystal devices.

关键词： quartz crystal Materials processing Wet etching Microfabrication quartz MEMS

Oscillation Conditions for An Electrode-separated Piezoelectric Sensor in Electrolyte Solution

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Chemical Research in Chinese Universities 1996年第1期12卷 22-31页

作者： SHEN Da-zhong(Chemistry College, Shandong University, Jinan, 250100)KANG Qi(Chemical Engineering Department, Jinan Branch of Shandong Institute of Mining and Technology, Jinan, 250031 )YAO Shou-zhuo(New Material Institute, Hunan University, Changsha, 4100 SHANDONG UNIV COLL CHEMJINAN 250100PEOPLES R CHINA INST MIN & TECHNOL DEPT CHEM ENGNJINAN 250031PEOPLES R CHINA HUNAN UNIV NEW MAT INSTCHANGSHA 410082PEOPLES R CHINA

Based on the needs of the oscillation equation and frequency stability, three oscillation conditions are proposed and have been experimentally verified for an electrode-separated piezoelectric sensor (ESPS ) in electrolyte solutions. The present paper covers the dependence of the minimum cell constant needed for the ESPS on solution conductivity. The oscillation conditions of the classical liquid piezoelectric sensor are discussed. The 'cease-to-oscillate' frequencies of the ESPS were measured.

关键词： Piezoelectric sensor quartz crystal Cell constant Conductivity

An　Oscillation　Condition　for　an　Electrode－separated　Piezoelectric　Sensor　in　Non－electrolyte　Liquid

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Chemical Research in Chinese Universities 1995年第1期11卷 9-15页

作者： SHEN Da-zhong HUANG Ming-shan LIN Song NIE Li-hua and YAO Shou-zhuo(New Material Research institute , Hunan University , Changsha , 410082) HUNAN UNIV NEW MAT RES INSTCHANGSHA 410082PEOPLES R CHINA

n oscillation condition was proposed and experimentally verified for an elec-troderaeparated piezoelectric sensor (ESPS) in non-electrolyte liquid, it was ex-pressed as , where C_s is the solution capaci-tance , R_q, C_o and w are the motional resistance , static capacitance and resonant an-gle frequency of the crystal , respectively. And Y-tgθ, where θ is the phase shift inthe oscillator. The relationships between the minimum cell constant needed for ES-PS to oscillate and each of the following parameters, permittivity, density and vis-cosity of the liquid as well as the oscillator phase shift were discussed. The″ cease-to-oscillate″ frequency of ESPS was measured. The oscillation ability of ESPS in-creases with increasing permittivity or decreasing density and viscosity of the liq-uid. An oscillator with a larger Y value is helpful to drive ESPS.

关键词： Piezoelectric sensor quartz crystal Cell constant