Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.最新文献_第3页

On-chip self-sensing function of 4/spl times/4 matrix micromachined resonating piezoelectric membranes for mass detection applications [biosensor/chemical sensor applications] 用于质量检测应用的4/spl倍/4矩阵微机械谐振压电膜片上自传感功能[生物传感器/化学传感器应用]

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418472

M. Guirardel, L. Nicu, D. Saya, S. Hinh, H. Sicard, D. Lagrange, F. Mathieu, É. Cattan, D. Remiens, C. Bergaud

{"title":"On-chip self-sensing function of 4/spl times/4 matrix micromachined resonating piezoelectric membranes for mass detection applications [biosensor/chemical sensor applications]","authors":"M. Guirardel, L. Nicu, D. Saya, S. Hinh, H. Sicard, D. Lagrange, F. Mathieu, É. Cattan, D. Remiens, C. Bergaud","doi":"10.1109/FREQ.2004.1418472","DOIUrl":"https://doi.org/10.1109/FREQ.2004.1418472","url":null,"abstract":"In this paper, we studied the dynamic behavior of micromachined piezoelectric membranes (PMs) as an alternative to QCM biosensors. We use standing waves on our mechanical structures to obtain higher integration density. The 4/spl times/4 matrixes of PMs use PZT as a piezoelectric film whose geometries have been drawn by lift-off techniques. Each PM (circular shaped, with a radius equal to 150 /spl mu/m) can be individually addressed for actuation and/or sensing. Here we show that the same kind of PMs exhibit excellent self-sensing capabilities by using the direct piezoelectric effect of the PZT layer. The open-loop resonant frequencies of several PMs were measured by examining the self-induced charge on the sense electrode using a proximity electronic circuit. We simultaneously performed resonant frequencies measured by means of a dynamic optical interferometer that completely matched the electrical self-sensed resonant spectra. In this case, the PMs were actuated in two different ways, either by using an external transducer or by using the self-actuating (reverse piezoelectric effect) capability of each membrane.","PeriodicalId":369162,"journal":{"name":"Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132029056","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: 2

Improvements in NIST-F1 and a resulting accuracy of /spl delta/f/f = 0.61 /spl times/ 10/sup -15/ NIST-F1的改进和由此产生的精度/spl delta/f/f = 0.61 /spl times/ 10/sup -15/

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418429

T. Heavner, S. Jefferts, E. Donley, J. Shirley, T. Parker

引用次数: 1

A new low profile DOCXO 一个新的低姿态DOCXO

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418499

Y. Vorokhovsky, S. Anastasyev, A. Volkov

{"title":"A new low profile DOCXO","authors":"Y. Vorokhovsky, S. Anastasyev, A. Volkov","doi":"10.1109/FREQ.2004.1418499","DOIUrl":"https://doi.org/10.1109/FREQ.2004.1418499","url":null,"abstract":"Two years ago Morion Incorporated introduced its first DOCXO model. Since that time Morion have produced more than 15000 of such DOCXO mainly for CDMA application. Now we introduce the new DOCXO design having much lower height. Generally the height reduction of the oscillator's case decreases thermal resistance between ovenized components of the oscillator and ambient. This factor causes degradation of the frequency stability versus temperature. In the new DOCXO temperature stability is achieved by increase of thermal gain of the two-stage oven, decrease of thermal gradients in the outer oven's case, and use of some elements, which decrease the thermal link between inner and outer ovens. The major technical characteristics of this DOCXO are: standard frequencies 4.096; 5.0; 8.192; 10.0; 12.288; 15.0; 16.384; 20.0 MHz; frequency stability: versus temperature range -40...+70/spl deg/C /spl plusmn/1*10/sup -10/, /spl plusmn/2*10/sup -10/; versus supply voltage change 12V/spl plusmn/10% /spl plusmn/5*10/sup -11/; versus load change 50 ohm /spl plusmn/10% /spl plusmn/1*10/sup -10/; versus aging per day /spl plusmn/1*10/sup -/10; Allan variance for 1s 1*10/sup -12/; output level 7/spl plusmn/2 dBm; power consumption <3 W (steady state @25/spl deg/C); dimensions 2/sup n/*2/sup 11*/1/sup 11/ (50.8*50.8*25.4mm).","PeriodicalId":369162,"journal":{"name":"Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131002247","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

Resonant properties of ceramic resonators coated with plasma polymerized styrene film 等离子体聚合苯乙烯膜涂层陶瓷谐振器的谐振特性

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418454

S. Kurosawa, H. Aizawa, M. Matsumoto, Jong-Won Park, H. Kaida, H. Sakaguchi, J. Inoue

引用次数: 0

Reducing PM-to-AM conversion and the light-shift in laser-pumped, vapor-cell atomic clocks 减少pm - am转换和激光泵浦蒸汽电池原子钟的光移

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418442

J. Camparo, J. Coffer, J. Townsend

{"title":"Reducing PM-to-AM conversion and the light-shift in laser-pumped, vapor-cell atomic clocks","authors":"J. Camparo, J. Coffer, J. Townsend","doi":"10.1109/FREQ.2004.1418442","DOIUrl":"https://doi.org/10.1109/FREQ.2004.1418442","url":null,"abstract":"The alkali vapor-cell atomic clock, either conventional or coherent-population-trapping (CPT), offers one of the most viable approaches to an ultraminiature device. Unfortunately, this atomic clock suffers from two laser-induced noise processes, laser phase-noise (PM) to amplitude-noise (AM) conversion and ac-Stark shift fluctuations. Here, we demonstrate a method to circumvent these problems in a passive and miniaturizable manner based on pressure-broadening of the relevant optical transition. For this purpose, we have constructed a conventional atomic clock employing Rb/sup 87/ vapor confined with 100 torr of N/sub 2/. In this high-pressure environment, both PM-to-AM conversion efficiency and the ac-Stark shift are reduced. Though we employ a \"phase-noisy,\" cleaved-facet diode laser, and lock the laser frequency to the pressure-broadened 1.6 GHz D/sub 1/ absorption line of Rb, we obtain excellent short-term frequency stability (i.e., /spl sigma//sub y/(/spl tau/) = 1.8x10/sup -12///spl tau//sup 1/2/). Moreover, since a single resonance cell generates locking signals for both the laser wavelength and the crystal oscillator, the atomic clock has real potential for miniaturization.","PeriodicalId":369162,"journal":{"name":"Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004.","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121515271","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: 2

Measurements of particles in liquid using surface acoustic wave sensors 用表面声波传感器测量液体中的粒子

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418459

T. Oyama, J. Kondoh, S. Shiokawa

引用次数: 5

NIM4 cesium fountain primary frequency standard: performance and evaluation NIM4铯喷泉主频标准:性能与评价

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418549

Tian-chu Li, M. Li, Pingwei Lin, Bingying Huang, J. Qian, Y. Gan, Ping Wang, Mingde Xin, Weiliang Chen, C. Shi, Nianfeng Liu, Xiaohui Zhao

引用次数: 2

Miller oscillators for high sensitivity quartz crystal microbalance sensors in damping media 用于阻尼介质中高灵敏度石英晶体微平衡传感器的米勒振荡器

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418571

L. Rodriguez Pardo, J. Fariña, C. Gabrielli, H. Perrot, R. Brendel

引用次数: 9

Study of frequency-temperature characteristics of quartz with various cut angle and metal thickness of electrode 石英在不同切割角度和电极金属厚度下的频率-温度特性研究

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418532

Mei-Hui Chung, S.T. Wang, A.C.S. Huang

引用次数: 9

Zero TCF ZnO/quartz SAW structure for gas sensing applications 零TCF氧化锌/石英SAW结构气敏应用

Proceedings of the 2004 IEEE International Frequency Control Symposium and Exposition, 2004. Pub Date : 2004-08-23 DOI: 10.1109/FREQ.2004.1418515

A. Talbi, F. Sarry, F. Moreira, M. Elhakiki, O. Elmazria, L. Le Brizoual, P. Alnot

引用次数: 9