发布求助
文献互助 智能选刊 最新文献

2016 IEEE International Frequency Control Symposium (IFCS)最新文献

筛选
英文 中文
3-GHz BAW composite resonators integrated with CMOS in a single-chip configuration 3 ghz BAW复合谐振器集成CMOS在单芯片配置
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563593
Gayathri Pillai, A. Zope, J. M. Tsai, Sheng-Shian Li
{"title":"3-GHz BAW composite resonators integrated with CMOS in a single-chip configuration","authors":"Gayathri Pillai, A. Zope, J. M. Tsai, Sheng-Shian Li","doi":"10.1109/FCS.2016.7563593","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563593","url":null,"abstract":"This work presents the design and characterization for composite Aluminum Nitride on Silicon based thin Film Bulk Acoustic Wave Resonators (c-FBAR) fabricated using a proprietary InvenSense AlN-MEMS + CMOS process. High performance pentagon shaped resonators are fabricated and operated under a high-order thickness-extensional mode with an electromechanical coupling coefficient of 2.21% and an unloaded quality factor of ~1,933 at 3.26 GHz. Detailed de-embedding is performed to remove the parasitic elements which would degrade the resonator performance in the GHz operational frequency range. After de-embedding, motional resistance of 1.5 Ω is recorded. Such an InvenSense platform allows us to realize MEMS + CMOS integrated systems where an inverter based Pierce oscillator with power consumption of 0.5 mW at 1.1V bias is designed. However, insufficient performance of the MEMS resonator impedes the oscillator implementation. The circuit has an active area of 55×85 μm2 and overall CMOS-MEMS integrated area is about 300×250 μm2.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127725672","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
Using QCM for field measurement of liquid viscosities in a novel mass-sensitivity-base method 在一种新的质量灵敏度基础上，利用QCM进行液体粘度的现场测量
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546819
Q. Bai, Jianguo Hu, Xian-he Huang, Hongyuan Huang
{"title":"Using QCM for field measurement of liquid viscosities in a novel mass-sensitivity-base method","authors":"Q. Bai, Jianguo Hu, Xian-he Huang, Hongyuan Huang","doi":"10.1109/FCS.2016.7546819","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546819","url":null,"abstract":"In this paper, a novel mass-sensitivity-based method for field measurement of liquid viscosities using a quartz crystal microbalance (QCM) is presented. And a model which yields a quantitative description of the influence of the liquid properties on the oscillation frequency is established as well. The viscosity of liquids (which loaded on a QCM's center) could be quickly and conveniently obtained using this model by measuring the frequency shift of QCM and the radius of liquid drop. Two groups of verified experiments are performed using two different QCMs, and the experimental data show that the presented method is efficient.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"140 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127476899","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
Rb-based optical frequency reference at 1572 nm 基于铷基的光学频率参考在1572 nm
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546772
W. Moreno, R. Matthey, F. Gruet, P. Brochard, S. Schilt, G. Mileti
{"title":"Rb-based optical frequency reference at 1572 nm","authors":"W. Moreno, R. Matthey, F. Gruet, P. Brochard, S. Schilt, G. Mileti","doi":"10.1109/FCS.2016.7546772","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546772","url":null,"abstract":"In the frame of an optical reference laser system, a frequency-stabilized optical frequency comb was generated from the radiation of a 1560-nm DFB laser, which was frequency-doubled and stabilized to a rubidium transition in a sub-Doppler absorption scheme using a 2-cm long vapor glass cell. A DFB laser emitting at 1572 nm was then offset-locked to an appropriate line of the comb. At 1572 nm, a relative frequency stability of 110-11 at 1 s has been obtained, reaching <; 410-12 from 3,000 s up to 3 days.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130500649","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
The evaluation of BeiDou time transfer performance 北斗时间传输性能评价
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546830
Wei Guang, Haibo Yuan, S. Dong, Shuhong Zhao, Jihai Zhang, Yajing Wei
{"title":"The evaluation of BeiDou time transfer performance","authors":"Wei Guang, Haibo Yuan, S. Dong, Shuhong Zhao, Jihai Zhang, Yajing Wei","doi":"10.1109/FCS.2016.7546830","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546830","url":null,"abstract":"The BeiDou regional navigation system has been continuously running for about three years since it starts providing PVT service in December 2012. During this period, it provides more stable positioning and timing service to lots of users in Asia-pacific region. In this paper, the current time transfer performance of BeiDou is tested and analyzed, the performance of its time transfer service which is relative to GPS and other mature satellite navigation system is evaluated. The time transfer technology performance of BDS, such as one-way timing, common view, and precision point positioning time transfer is analyzed and compared with GPS. The experiment of short distance (30km) and long distance (1000km above) time transfer is carried out to evaluate the performance between GPS and BDS. At end of paper, the results of short distance time transfer on GPS and BDS is compared and verified with GPS PPP time transfer. The results of the time transfer performance of the Beidou are in good agreement with GPS time transfer technology, and the relative accuracy is reached sub nanoseconds.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132438374","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 in Brazilian Cesium atomic fountain-BrCsF 巴西铯原子喷泉brcsf的研究进展
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546818
S. A. Rodriguez, V. Bagnato, C. Bueno, R. D. Pechoneri, S. T. Muller, D. Magalhães
{"title":"Progress in Brazilian Cesium atomic fountain-BrCsF","authors":"S. A. Rodriguez, V. Bagnato, C. Bueno, R. D. Pechoneri, S. T. Muller, D. Magalhães","doi":"10.1109/FCS.2016.7546818","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546818","url":null,"abstract":"The goal of this work is to present new progress in the Brazilian Cesium fountain Br-CsF, which is currently back to operation after improvements in its optical system. The first result of this new stage is the Ramsey fringe showed in Figure 5. The central oscillation has a FWHM of 1.5 Hz with cycle time of 2 s and with signal noise ratio of 200. This fringe was obtained loading ~109 atoms into a magneto optical trap with loading time of tl = 1.2 s.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134441621","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
The elastic stiffness of langasite at high temperatures and its temperature compensated orientations 高温下langasite的弹性刚度及其温度补偿取向
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563545
Y. Yong, Gobong Choi
{"title":"The elastic stiffness of langasite at high temperatures and its temperature compensated orientations","authors":"Y. Yong, Gobong Choi","doi":"10.1109/FCS.2016.7563545","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563545","url":null,"abstract":"The langasite crystal has the capability of no phase change at temperatures exceeding 600°C for high temperature applications. Since the material properties of langasite were measured usually at 25 0C as the reference temperature they are no longer accurate at high temperature environments. We employ a Lagrangian formulation to investigate the temperature behavior of thickness vibrations of langasite in a wide temperature range from 25°C to 600°C. The analysis only requires the elastic constants and their effective temperature derivatives of elastic constants and thermal expansion coefficients to predict the material constants at any given temperature. Based on the new values of the elastic constants and thermal expansion coefficients, the zero-valued temperature coefficients of frequency are investigated. The presently identified temperature compensated crystal cuts of the thickness-shear modes of langasite at different temperatures were compared with those at reference temperature and also with some cuts found in the literature.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133232722","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
Magnetic state selection impact on double resonance effect in H-maser 磁态选择对h脉泽双共振效应的影响
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546813
A. Michael
{"title":"Magnetic state selection impact on double resonance effect in H-maser","authors":"A. Michael","doi":"10.1109/FCS.2016.7546813","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546813","url":null,"abstract":"Double resonance effect in a hydrogen maser appears in a two-photon process in which the Zeeman sublevels of the hydrogen atom ground state hyperfine structure are involved when applying transverse magnetic field near the Zeeman frequency. As a consequence of this process maser power falling due to weakening of the dipole coupling |F=1, mF=0>↔|F=0, mF=0> and maser shift due to amplification of the dipole couplings |F=1, mF=1>↔|F=0, mF=0> and |F=1, mF=-1>↔ |F=0, mF=0> occur near the Zeeman frequency, what has confirmed experimentally. The first analytic calculation of the effect was performed by Andresen using bare atom basis, then Humphrey confirmed this calculation by numerically solving dressed basis Bloch equations. But both calculations were realized for perfect magnet ensured state selection N1, 1= N1, 0= 1/2 and N1, -1= N0, 0= 0 that is not feasible in practice. In this paper new modified Bloch equations intended for arbitrary state selection system have been obtained and calculated. As a result an analysis of state selection performance impact on double resonance in H-maser is produced.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133335195","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
A compact optical clock scheme based on caesium atomic beam 基于铯原子束的紧凑光学时钟方案
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546771
Shengnan Zhang, Xiaogang Zhang, Zhaojie Jiang, D. Pan, Xiang Peng, Haijun Chen, Jingbiao Chen, Hong Guo
{"title":"A compact optical clock scheme based on caesium atomic beam","authors":"Shengnan Zhang, Xiaogang Zhang, Zhaojie Jiang, D. Pan, Xiang Peng, Haijun Chen, Jingbiao Chen, Hong Guo","doi":"10.1109/FCS.2016.7546771","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546771","url":null,"abstract":"We report a compact optical clock scheme based on caesium (Cs) atomic beam, which extends the application of Cs from microwave frequency standard to optical frequency standard. Considering the 1.2 MHz narrow natural-linewidth of the excited state 7P1/2 and 7P3/2, we can lock the laser frequency on the 455 nm or 459 nm transition line with the method of saturated absorption spectroscopy (SAS) to achieve a compact optical clock. Under the condition of 1.4 MHz narrow-linewidth laser spectrum and 100,000 signal to noise ratio (SNR), the limited stability of the compact Cs optical clock is expected to be 2.2×10-14 at 1 s. The performance of this Cs optical clock is superior to that of hydrogen atomic clock. Compared with the traditional Cs atomic clocks, the compact Cs optical clock has potentially better stability.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132321832","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
Polymer-plasticizer coatings for shear horizontal-surface acoustic wave sensors for long-term monitoring of BTEX analytes in liquid-phase 用于长期监测液相中BTEX分析物的剪切水平表面声波传感器的聚合物增塑剂涂层
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7563579
Pintu Adhikari, F. Bender, F. Josse, A. Ricco
{"title":"Polymer-plasticizer coatings for shear horizontal-surface acoustic wave sensors for long-term monitoring of BTEX analytes in liquid-phase","authors":"Pintu Adhikari, F. Bender, F. Josse, A. Ricco","doi":"10.1109/FCS.2016.7563579","DOIUrl":"https://doi.org/10.1109/FCS.2016.7563579","url":null,"abstract":"This work investigates polymer-plasticizer blends to develop a new class of sensor coatings for long-term groundwater monitoring of organic compounds. Detection limits of 35 μg/L for benzene are reported, and data on long-term repeatability of the SH-SAW sensor response are presented.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122681563","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
High speed mid-infrared detectors based on MEMS resonators and spectrally selective metamaterials 基于MEMS谐振器和光谱选择性超材料的高速中红外探测器
2016 IEEE International Frequency Control Symposium (IFCS) Pub Date : 2016-05-09 DOI: 10.1109/FCS.2016.7546721
Michael G. Breen, W. Streyer, Ruochen Lu, A. Gao, D. Wasserman, S. Gong
{"title":"High speed mid-infrared detectors based on MEMS resonators and spectrally selective metamaterials","authors":"Michael G. Breen, W. Streyer, Ruochen Lu, A. Gao, D. Wasserman, S. Gong","doi":"10.1109/FCS.2016.7546721","DOIUrl":"https://doi.org/10.1109/FCS.2016.7546721","url":null,"abstract":"This work reports the development of uncooled spectrally selective mid-infrared (IR) detectors based on the seamless integration of metamaterial (MM) structures with microelec-tromechanical AlN resonators. The complete coverage of the resonator surface with MM results in high mid-IR absorption (>80%) at an optimized spectral wavelength of 9.6 μm with a Full Width at Half Maximum (FWHM) of 1.02 μm without compromising resonator acoustic performance. A novel detector readout has also been implemented to linearly convert incident IR power to a DC voltage and to demonstrate the potential for expanding our single element detector to a focal plane array imager. The measurements of the detectors have shown a high temperature coefficient of impedance (TCZ) of 9.6% a fast thermal response time of 400 μs, and a responsivity of 33 V/W.","PeriodicalId":122928,"journal":{"name":"2016 IEEE International Frequency Control Symposium (IFCS)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121483175","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: 6
首页 上一页 下一页 尾页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：604180095
Book学术官方微信