Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218)最新文献_第5页

Subminiature microwave cavity for atomic frequency standards 用于原子频率标准的微型微波腔

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956165

J. Deng

引用次数: 10

A review of langasite material constants from BAW and SAW data: toward an improved data set 从BAW和SAW数据中对langasite材料常数的回顾:一个改进的数据集

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956203

J. Kosinski, R. Pastore, E. Bigler, M. D. da Cunha, D. Malocha, J. Détaint

{"title":"A review of langasite material constants from BAW and SAW data: toward an improved data set","authors":"J. Kosinski, R. Pastore, E. Bigler, M. D. da Cunha, D. Malocha, J. Détaint","doi":"10.1109/FREQ.2001.956203","DOIUrl":"https://doi.org/10.1109/FREQ.2001.956203","url":null,"abstract":"The aim of this paper is to derive an improved set of Langasite (LGS) material constants based on BAW and SAW data in order to get a better agreement between theoretical predictions and experimental measurements for wave velocities and temperature effects. In a previous work it was shown that an \"aggregate\" set of the measured values of bulk wave velocities can provide a improved set of measurement data for BAW propagation. Recent advances in LGS crystal growth and measurement of material properties obtained independently from the original authors allows us to go further, one unsolved problem with previous data being inconsistencies in the temperature derivatives of material constants of LGS. This paper brings together a large quantity of experimental data obtained independently by the authors. Comparison between experiments and theoretical predictions are recomputed taking into account the more recently published data sets for LGS. In combination with a critical analysis of the literature on LGS crystals, an improvement of a \"best fit\" data set for velocities is proposed.","PeriodicalId":369101,"journal":{"name":"Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127852208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 37

Temperature-compensation factor and deviation factor of simple ultrasonic solution-concentration sensor 简易超声溶液浓度传感器的温度补偿系数和偏差系数

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956277

K. Ikeda

引用次数: 1

VHF fundamental AT-cut resonators using flip-chip bonding 使用倒装键合的VHF基波at切割谐振器

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956247

H. Iwata, T. Takahashi, O. Ishii

引用次数: 3

3-axis vibration performance of a compact sapphire microwave oscillator 小型蓝宝石微波振荡器的三轴振动性能

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956365

P. Stockwell, C. McNeilage, M. Mossammaparast, D. Green, J. Searls

引用次数: 5

New concepts of internally heated quartz resonators (IHQRs) and appropriate OCXOs 内加热石英谐振器(IHQRs)和合适的ocxo的新概念

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956379

Y. Vorokhovsky, I.G. Petrosyan, S. Anastasyev

引用次数: 0

Two-dimensional equations for electroelastic plates under biasing fields 偏场作用下电弹性板的二维方程

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956344

Y.T. Hu, Q. Jiang, J.S. Yang, X. Zhang

{"title":"Two-dimensional equations for electroelastic plates under biasing fields","authors":"Y.T. Hu, Q. Jiang, J.S. Yang, X. Zhang","doi":"10.1109/FREQ.2001.956344","DOIUrl":"https://doi.org/10.1109/FREQ.2001.956344","url":null,"abstract":"Two-dimensional equations for piezoelectric plates have been very effective in modeling piezoelectric resonators. To predict the behavior of resonators under environmental effects like temperature change or acceleration, the theory of incremental motions in an electroelastic body under biasing fields is necessary. Existing two-dimensional equations for electroelastic plates under biasing fields employ various simplifying assumptions. For example, electroelastic couplings are often neglected for materials like quartz with weak piezoelectric effect. Spatially uniform and time-independent biasing fields are usually assumed so that the resulting equations have constant coefficients. The study of resonators made from new materials with strong piezoelectric coupling and the treatment of, e.g., resonator vibration sensitivity require plate equations with full electroelastic coupling and time-dependent or spatially varying biasing fields. We develop two-dimensional equations for an electroelastic plate under general biasing fields. No assumptions on the biasing fields are made. Full electroelastic coupling is taken into account. A set of two-dimensional equations for coupled extension and flexure with shear deformations are obtained. The application of the equations in resonator vibration sensitivity is shown by an example.","PeriodicalId":369101,"journal":{"name":"Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131660276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Progress on the construction of an atomic cesium fountain at NIM 南京理工大学原子铯喷泉建设进展

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956169

Li Tianchu, Li Mingshou, H. Bingying, Qian Jin, L. Pingwei

引用次数: 1

Study of quartz crystal slicing technology by using unidirectional multi-wire-saw 单向多线锯切割石英晶体的技术研究

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956239

T. Watanabe, M. Kojima, K. Yamato

{"title":"Study of quartz crystal slicing technology by using unidirectional multi-wire-saw","authors":"T. Watanabe, M. Kojima, K. Yamato","doi":"10.1109/FREQ.2001.956239","DOIUrl":"https://doi.org/10.1109/FREQ.2001.956239","url":null,"abstract":"In a synthetic quartz crystal, it is desirable for the wafer immediately after slicing by a multi-wire-saw, which is a grinding system using free abrasive grains, to have no total thickness variation in the wafer and as near as possible zero warp as this influences the final product. Here, the terms and conditions for realizing high-precision machining were examined. Although based on abrasive grain particle diameter and a 800-1350 m/min. high-speed run of the wire , it turns out that the warp and the total thickness variation of a wafer can be brought close to zero by performing at a speed that brings a workpiece to the state where it is synchronized with the slicing speed. The performance of a unidirectional wire driving system and a bi-directional wire driving system were compared. The total thickness variation of the sliced wafer obtained using the unidirectional wire driving system is half the value of that using the bi-directional system. The various quality factors in slicing technology were examined, and the outstanding performance of unidirectional multi-wire-saw was verified.","PeriodicalId":369101,"journal":{"name":"Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128545085","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Extension of the frequency range of ceramic resonator oscillators using push-push circuit topology 利用推-推电路拓扑扩展陶瓷谐振振荡器的频率范围

Proceedings of the 2001 IEEE International Frequncy Control Symposium and PDA Exhibition (Cat. No.01CH37218) Pub Date : 2001-06-06 DOI: 10.1109/FREQ.2001.956371

C. Nicholls

引用次数: 4