Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052)最新文献_第8页

Decoupling effect of stepped mesa structures on spurious vibrations of AT-cut quartz plates 阶梯式平台结构对at切割石英板杂散振动的解耦效应

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887388

S. Goka, H. Sekimoto, Y. Watanabe

引用次数: 7

Piezoelectric, dielectric and elastic properties of germanium dioxide single crystals 二氧化锗单晶的压电、介电和弹性特性

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887349

Y. Pisarevsky, O.Yu. Silvestrova, E. Phillippot, D. Balitsky, D.Yu. Pisharovsky, V. Balitsky

引用次数: 2

Implications of in-plane stretch and thickness compression coupled to flexure on the lower bound of BAW acceleration sensitivity 面内拉伸和厚度压缩与弯曲耦合对BAW加速度灵敏度下界的影响

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887379

J. Kosinski, R. A. Pastore, Jia-shi Yang

引用次数: 7

Application of novel sensor electronics for quartz resonators in artificial tongue 新型传感电子学在石英谐振器人工舌中的应用

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887337

P. Hauptmann, R. Borngraeber, J. Schroeder, J. Auge

引用次数: 16

A new class of ordered langasite structure compounds 一类新的有序菱叶石结构化合物

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887346

B. Chai, A. Bustamante, M. Chou

引用次数: 42

The relativistic red shift with 2/spl times/10/sup -17/ uncertainty at NIST, Boulder, Colorado, USA 美国科罗拉多州博尔德NIST的2/spl × 10/sup -17/不确定度相对论红移

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887429

N. Pavlis, M. Weiss

{"title":"The relativistic red shift with 2/spl times/10/sup -17/ uncertainty at NIST, Boulder, Colorado, USA","authors":"N. Pavlis, M. Weiss","doi":"10.1109/FREQ.2000.887429","DOIUrl":"https://doi.org/10.1109/FREQ.2000.887429","url":null,"abstract":"We have estimated the relativistic red shift correction due to gravity, necessary to reference to the geoid the measurements of the new cesium fountain frequency standard at the National Institute of Standards and Technology (NIST) in Boulder, Colorado, USA. The frequency correction due to the red shift is given by /spl Delta/f/f=(W/sub p/-W/sub o/)/c/sup 2/, where c is the speed of light, W/sub p/ the gravity potential at the location of the cesium fountain and W, the gravity potential on the geoid. We have computed the geopotential number C=W/sub o/-W/sub p/ in three ways: (1) Based on the global gravitational model EGM96. (2) Based on the regional, high-resolution geoid model G96SSS. (3) Based on the value provided in the National Geodetic Survey's data sheet for the NIST reference marker. We have estimated the offsets between the reference surfaces associated with each of the above three values of C. After referencing the three C values to a geoid surface defined with respect to the current best estimate of an \"ideal\" mean-Earth ellipsoid, the three computations of C gave the following /spl Delta/f/f results: (1) -1797.83/spl times/10/sup -16/, (2) -1798.94/spl times/10/sup -16/ and (3) -1798.91/spl times/10/sup -16/. The minus sign implies that the cesium fountain runs faster in the laboratory in Boulder than a standard clock located on the geoid.","PeriodicalId":294110,"journal":{"name":"Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131818604","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: 1

Novel technique for dual-mode quartz oscillators 双模石英振荡器的新技术

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887394

D. Tsarapkin

引用次数: 1

Extended Christoffel-Bechmann elastic wave formalism for piezoelectric, dielectric media 压电介质的扩展Christoffel-Bechmann弹性波形式

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887378

A. Ballato

引用次数: 46

Continuous satellite two-way time transfer using commercial modems 使用商用调制解调器的连续卫星双向时间传输

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887423

T. Celano, S. Francis, G. A. Gifford

{"title":"Continuous satellite two-way time transfer using commercial modems","authors":"T. Celano, S. Francis, G. A. Gifford","doi":"10.1109/FREQ.2000.887423","DOIUrl":"https://doi.org/10.1109/FREQ.2000.887423","url":null,"abstract":"Satellite two-way time transfer has traditionally been used as a periodic measurement of the offset between two clocks. It is often used as a secondary measurement to GPS or a sole means of time recovery with performance that is superior to GPS time transfer. In this paper, we propose a continuous two-way system based on commercial modems where the two-way time transfer is performed in the background of normal data transfer. The intent of such a system is to provide a cost effective means to achieve high accuracy two-way time transfer in the background of an active data channel. The timing functionality is buried in the administrative portion of the communications channel and thus is provided as a byproduct of data transfer. This provides lower cost, lower bandwidth options for users who require sub-nanosecond time transfer between sites. It also provides a continuous record of clock differences with no impact on data transmission for users who have access to a data communications link. This paper begins with a review of the concept of two-way time transfer and time based communications and presents the requirements for implementing two-way systems over a communications channel. The requirements are then satisfied with commercial modems using two examples: an internal implementation and an external implementation. Data is presented for each case and tradeoffs are discussed.","PeriodicalId":294110,"journal":{"name":"Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052)","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2000-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131591648","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: 5

Analysis of thickness modes of contoured, doubly-rotated quartz resonators 轮廓型双旋转石英谐振器的厚度模式分析

Proceedings of the 2000 IEEE/EIA International Frequency Control Symposium and Exhibition (Cat. No.00CH37052) Pub Date : 2000-06-07 DOI: 10.1109/FREQ.2000.887377

E. P. Eernisse

引用次数: 2