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IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)最新文献

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/spl Sscr/tudy of the dynamic response of QCM sensors by means of a fast and accurate all-digital frequency detector /spl Sscr/利用快速准确的全数字频率检测器研究QCM传感器的动态响应
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1006811
C. Di Nucci, A. Fort, S. Rocchi, L. Tondi, N. Ulivieri, V. Vignoli, F. Di Francesco, M. B. Serrano-Santos
{"title":"/spl Sscr/tudy of the dynamic response of QCM sensors by means of a fast and accurate all-digital frequency detector","authors":"C. Di Nucci, A. Fort, S. Rocchi, L. Tondi, N. Ulivieri, V. Vignoli, F. Di Francesco, M. B. Serrano-Santos","doi":"10.1109/IMTC.2002.1006811","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1006811","url":null,"abstract":"In this paper an innovative measurement system for odor classification, based on Quartz Crystal Microbalances (QCHs), is presented. In particular, the problem of detecting typical wine aroma components in mixtures where ethanol is present is taken into account. In QCM sensors the sensitive layer is a polymeric layer deposited on a quartz surface. Chemical mixtures are adsorbed by the polymeric layer, inducing a change in the quantz mass and therefore in its resonance frequency. The frequency shift is measured by a dedicated fully digital front-end hardware implementing a technique proposed by Cantoni (2000). This approach allows reducing the measurement time while maintaining a high frequency resolution. The developed system allows measuring variations of the QCM resonance frequency shifts during chemical transients obtained with abrupt changes in odor concentration. Hence the reaction kinetics can be exploited to differentiate among different compounds. In this study some measurements obtained with an array of 4 sensors with different sensitive layers are presented. An exponential fitting of the transient responses is used for feature extraction. Principal Component Analysis (PCA) to reduce data dimensionality is used.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132429564","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
Active monitoring apparatus for underground pollutant detection based on electrical impedance tomography 基于电阻抗层析成像的地下污染物主动监测装置
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1006906
G. D'Antona, A. Ferrero, M. Lazzaroni, R. Ottoboni, E. Samarani
{"title":"Active monitoring apparatus for underground pollutant detection based on electrical impedance tomography","authors":"G. D'Antona, A. Ferrero, M. Lazzaroni, R. Ottoboni, E. Samarani","doi":"10.1109/IMTC.2002.1006906","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1006906","url":null,"abstract":"Spills and leaking of solvents widely used in many industrial processes have contaminated the environment at many highly industrialized sites and nearby areas. Site assessment and monitoring during remediation of soils and groundwater affected by this kind of contamination is often difficult and expensive. Geophysical techniques based on mapping a physical property of soil can be a useful tool for a rapid and fairly economic monitoring during site assessment and, even better, during the remediation process. Among these, electrical impedance tomography (EIT) is an attractive example of inverse problem as a technique for non-invasive diagnosis of conductive materials. This paper, after a brief description of the tomographic inversion process, describes the architecture, the design specifications of the measuring system for 2D and 3D resistive EIT.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132776822","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
Development of a synthetic A-scan technique for ultrasonic testing of pipelines 管道超声检测合成a扫描技术的研制
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1006901
G. Gunarathne, Y. Qureshi
{"title":"Development of a synthetic A-scan technique for ultrasonic testing of pipelines","authors":"G. Gunarathne, Y. Qureshi","doi":"10.1109/IMTC.2002.1006901","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1006901","url":null,"abstract":"Multiple boundary echoes are often seen in ultrasonic testing of materials. Although these echoes can be a problem in many situations, they can also be used to advantage e.g. in identifying disbonds of laminates or properties of materials beneath the test surface, such as scale deposits in pipelines. However, that requires echo comparison with signals from reference acoustic targets or templates. This is an exhaustive process, particularly when testing non-planar materials such as pipelines. In this paper, a new approach to synthesise reference signals using numerical modelling and computation is presented as an alternative method. The results of signal synthesis have been verified by experiment. Although the techniques described are specifically related to testing of pipelines, they can be extended to other general applications in nondestructive testing of materials.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"37 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133136516","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
On-line heart beat recognition using hermite polynomials and neuro-fuzzy network 基于埃尔米特多项式和神经模糊网络的在线心跳识别
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1006834
T. H. Linh, S. Osowski, M. Stodolski
{"title":"On-line heart beat recognition using hermite polynomials and neuro-fuzzy network","authors":"T. H. Linh, S. Osowski, M. Stodolski","doi":"10.1109/IMTC.2002.1006834","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1006834","url":null,"abstract":"The paper presents the neuro-fuzzy approach to the recognition and classification of heart rhythms on the basis of ECG waveforms. The important part in recognition fulfills the Hermite characterization of the QRS complexes. The Hermite coefficients serve as the features of the process. These features are applied to the fuzzy neural network for the recognition. The results of numerical experiments have confirmed the very good performance of such a solution.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133476432","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: 195
Characterization and simulation of photodetector sensing elements based-on heterojunction and heterodimensional devices 基于异质结和异质尺寸器件的光电探测器传感元件的表征和仿真
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1007116
A. Cataldo, A. Cola, A. L. Ekuakille, A. Trotta
{"title":"Characterization and simulation of photodetector sensing elements based-on heterojunction and heterodimensional devices","authors":"A. Cataldo, A. Cola, A. L. Ekuakille, A. Trotta","doi":"10.1109/IMTC.2002.1007116","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1007116","url":null,"abstract":"In this paper, we deal with the properties of a family of optical devices based on heterojunction and heterodimensional structures, and investigate their main performance criteria (in terms of modelling, dark current, light response, high-speed measurements). The implementation of a device architecture that relies on structures of different physical dimensions has the purpose of maximising the physical benefits of lower dimensional systems. The advantages of electron transport in a reduced dimensional system make these devices good candidates for integrated optoelectronic applications. The performance of this type of device was simulated using an ISE-TCAD simulator. Physical models used include Shockley-Reed-Hall recombination, Auger recombination, field-dependent mobility, thermionic effects, heterointerfaces and surface density of state-effects, considering also the specific quantized nature of the two-dimensional electron gas. We compared the simulated characteristics of AlGaAs/GaAs-based devices with measurements and obtained a good match between our simulation results and measurement data. The results show that the chosen physical model applied using the 2D device simulation is viable for the study and development of device performances. We also took into account photoresponse measurements of AlGaAs and InGaAs materials based devices, in order to evaluate the behavior of devices under light. High speed time response measurements are given in the last part of this paper that indicate higher peak transient response is achieved in the presence of higher 2DEG density, without degradation of temporal behavior. Microwave measurements taken in the frequency domain conclude the picture of characterizations, allowing us to extract the elements of the equivalent circuit.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132060983","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
Empirical modeling methods using partial data 采用部分数据的经验建模方法
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1007068
G. Stenbakken, Hung-kung Liu, G. Hwang
{"title":"Empirical modeling methods using partial data","authors":"G. Stenbakken, Hung-kung Liu, G. Hwang","doi":"10.1109/IMTC.2002.1007068","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1007068","url":null,"abstract":"Methods were developed to calculate empirical models for device error behavior from data sets with missing data. These models can be used to develop reduced point testing procedures for the devices. The partial data methods reduce the prediction uncertainty for test points that have more modeling data available relative to the prediction uncertainty of partial data test points. Simulations show that the prediction uncertainty for full data test points are comparable to the case where the \"missing\" data are \"known.\" When these methods are applied to real data where the underlying model has changed the improvements are less than the simulations predict.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123990732","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
An in-situ temperature measurement system for DUV lithography DUV光刻现场温度测量系统
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1006951
W. Tan, Reginald F. Y. Li
{"title":"An in-situ temperature measurement system for DUV lithography","authors":"W. Tan, Reginald F. Y. Li","doi":"10.1109/IMTC.2002.1006951","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1006951","url":null,"abstract":"The absolute temperature, as well as the spatial uniformity, of points on a silicon wafer during the various deep ultraviolet lithographic steps has a direct impact on the critical dimension. As more stringent temperature specifications must be satisfied in order to produce smaller silicon features, there is a need to continuously monitor the substrate temperature. This paper describes an algorithm for post-processing the output of an in-situ temperature measurement unit in order to lower its effective response time. Experimental results are then presented to demonstrate that the desired measurement accuracy during the transient part of the post-exposure bake process can be achieved.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846820","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
A method for estimation and filtering of Gaussian noise in images 图像中高斯噪声的估计和滤波方法
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1007214
F. Russo
{"title":"A method for estimation and filtering of Gaussian noise in images","authors":"F. Russo","doi":"10.1109/IMTC.2002.1007214","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1007214","url":null,"abstract":"A new approach to the restoration of images corrupted by Gaussian noise is presented. The proposed method combines a nonlinear algorithm for detail preserving smoothing of noisy data and a technique for automatic parameter tuning based on noise estimation. As a key feature, the method does not require any \"a priori\" knowledge about the amount of noise corruption. Experimental results show that the filtering performance of the proposed approach is very satisfactory.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127990791","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: 116
Capacitive blade tip clearance measurements for a micro gas turbine 微型燃气轮机电容式叶尖间隙测量
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1007093
T. Fábián, Sangkyun Kang, F. Prinz
{"title":"Capacitive blade tip clearance measurements for a micro gas turbine","authors":"T. Fábián, Sangkyun Kang, F. Prinz","doi":"10.1109/IMTC.2002.1007093","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1007093","url":null,"abstract":"The efficiency of a gas turbine has an inverse relationship with the clearance between the rotor blades and the casing. Recent efforts in miniaturization of micro gas turbine engines have created new challenge in tip clearance measurement. This paper describes the development of a tip clearance measurement system, based on capacitive measurement for a palm-top micro gas turbine engine. The sensor uses a ratio-metric measurement principle with synchronous detector to measure the average tip clearance between the rotor blades and the casing. A surface modification of the nonconductive compressor is used to create an electrode opposing the casing. A measurement range of 100 /spl mu/m was achieved with a resolution of 0.8 /spl mu/m.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128697352","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: 13
Stereoscopic visual servo system for microinjection 显微注射用立体视觉伺服系统
IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276) Pub Date : 2002-08-07 DOI: 10.1109/IMTC.2002.1007111
H. Yamamoto, J. Sakiyama
{"title":"Stereoscopic visual servo system for microinjection","authors":"H. Yamamoto, J. Sakiyama","doi":"10.1109/IMTC.2002.1007111","DOIUrl":"https://doi.org/10.1109/IMTC.2002.1007111","url":null,"abstract":"In this paper, we describe a visual feedback system using a stereoscopic microscope that controls a micromanipulator so that a needle head may pierce a target with as much length as desired. At first, we developed an image processing algorithm for the tip of the needle head to touch the target. Secondarily, we developed an algorithm for prediction of the tip position of the needle head within the target. By performing a preoperation, the shape of the needle head is preserved as a reference pattern. When the needle head is piercing the target, the shape of the needle head within the target is predicted by pattern matching. Thus, we developed a microinjection system that axially pierces the target. Experimental results show that the proposed system may be useful in micromanipulation such as microinjection to brain areas in neuroanatomy.","PeriodicalId":141111,"journal":{"name":"IMTC/2002. Proceedings of the 19th IEEE Instrumentation and Measurement Technology Conference (IEEE Cat. No.00CH37276)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129114623","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: 8
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