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On the relationship between applied voltage and the duration of isoelectric focusing experiments in the development of a linear pH gradient 线性pH梯度发展过程中施加电压与等电聚焦实验时间的关系
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.604005
J.F. Johnson, S. Ouattara, M.J. Bohm, E. Gillock, W. H. Dawes, R. Dyer, S. Dyer, W.B. Hudson, T.C. Johnson, R. Consigli
{"title":"On the relationship between applied voltage and the duration of isoelectric focusing experiments in the development of a linear pH gradient","authors":"J.F. Johnson, S. Ouattara, M.J. Bohm, E. Gillock, W. H. Dawes, R. Dyer, S. Dyer, W.B. Hudson, T.C. Johnson, R. Consigli","doi":"10.1109/IMTC.1997.604005","DOIUrl":"https://doi.org/10.1109/IMTC.1997.604005","url":null,"abstract":"The development of a linear pH gradient is necessary for the precise and consistent separation of biomolecules via isoelectric focusing techniques. Existing applications have used various voltage potentials in performing the separations, but the exact relationship between the voltage and the required time duration on the development of a linear pH gradient has not been determined. Certain applications, such as separations within the microgravity environment, can benefit from the use of low voltages, whereas other applications are not constrained by voltage limitations. In general, as the voltage increases, the time duration required for high-definition separation appears to be reduced, but the effect of these changes on the linearity of the pH gradient was not previously known. A mixture of ampholytes with a pH range of 3 to 10 was used in the investigation of this relationship, and voltage levels from 125 V to 1000 V were employed. A 6% polyacrylamide gel in a cylindrical configuration was used as the medium in all the experiments. The pH profiles of the gels were determined immediately after the conclusion of each time-duration experiment, without disturbing the integrity of the gel. This was accomplished by using a specialized iridium-oxide pH sensor that can be placed directly on the gel surface. The authors present their findings on the ability to produce linear pH gradients as a function of the voltage level applied and the time duration of the isoelectric focusing experiment.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125326597","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
Free active element bulk-modulus high-pressure transducer based on fiber-optic displacement sensor 基于光纤位移传感器的自由主动元件体积模量高压传感器
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.610191
W. Bock, T. Eftimov, G. Molinar, R. Wisniewski
{"title":"Free active element bulk-modulus high-pressure transducer based on fiber-optic displacement sensor","authors":"W. Bock, T. Eftimov, G. Molinar, R. Wisniewski","doi":"10.1109/IMTC.1997.610191","DOIUrl":"https://doi.org/10.1109/IMTC.1997.610191","url":null,"abstract":"A free active element bulk-modulus high-pressure transducer equipped with a fiber-optic displacement sensor for radial deformation detection of the active element is presented in this paper. The accuracy of the transducer at pressure ranges up to 100 MPa was estimated at 1.5% of full scale. The developed transducer can be used to measure hydrostatic or variable pressure in electrically conducting and/or in high-viscosity media, is electrically passive and can work safely in explosive environments.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125388004","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: 4
Sensitivity improvement of an electro-optic high-impedance probe 电光高阻抗探头灵敏度的改进
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.610213
M. Shinagawa, T. Nagatsuma, S. Miyazawa
{"title":"Sensitivity improvement of an electro-optic high-impedance probe","authors":"M. Shinagawa, T. Nagatsuma, S. Miyazawa","doi":"10.1109/IMTC.1997.610213","DOIUrl":"https://doi.org/10.1109/IMTC.1997.610213","url":null,"abstract":"This paper describes techniques for improving the electro-optic (EO) high-impedance probe for measuring gigahertz signals of on-board circuits. Higher sensitivity is achieved by decreasing the half-wave voltage of the EO crystal in the probe head and by increasing the laser power. To decrease the half-wave voltage, we employ Bi/sub 12/TiO/sub 20/ a newly developed crystal with a larger EO coefficient, and a 1.3-/spl mu/m Fabry Perot (FP) laser diode instead of a 1.55-/spl mu/m distributed feedback (DFB) laser diode. To increase the laser output power, the sampling rate is increased by using a specially-designed laser driver unit. These techniques improve the total voltage sensitivity of the probe system 3.6 times compared to our previous system. This directly leads to a more than one order reduction of signal acquisition time. Moreover, these techniques make the probe system cost effective because they eliminate the need for expensive optical components.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115206895","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
A remote controlled automated measurement system 一种遥控自动测量系统
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612387
F. Alegria, H. G. Ramos
{"title":"A remote controlled automated measurement system","authors":"F. Alegria, H. G. Ramos","doi":"10.1109/IMTC.1997.612387","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612387","url":null,"abstract":"Control of instrumentation systems through network PC's is increasingly important nowadays, both in the industry and in R&D centers. This paper presents an automated measurement system used to characterise a semiconductor device. The system can be controlled by any of the PC's integrated in a LAN network using a client/server communication. The server controls the instrumentation through an IEEE-488 interface bus.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115244733","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
The feasibility of applying the neural network technology to the automatic time report system 将神经网络技术应用于考勤自动报表系统的可行性
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612375
C. Liao, Huang-Tien Lin, F. Chu, Jiang-lin Shi, Chia-Lu Ho
{"title":"The feasibility of applying the neural network technology to the automatic time report system","authors":"C. Liao, Huang-Tien Lin, F. Chu, Jiang-lin Shi, Chia-Lu Ho","doi":"10.1109/IMTC.1997.612375","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612375","url":null,"abstract":"Utilizing neural network technology, the automatic time report (embryo) system was modified by ChunghWa Telecom. This paper shows how the neural network technology is applied to simulate the operations of supervision and error detection. One may find that the automatic time report system is more complete and suitable for users.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"163 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116108390","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
A novel smart interface for voltage-generating sensors 一种用于电压产生传感器的新型智能接口
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612444
Xiujun Li, G. Meijer, E. J. Schnitger
{"title":"A novel smart interface for voltage-generating sensors","authors":"Xiujun Li, G. Meijer, E. J. Schnitger","doi":"10.1109/IMTC.1997.612444","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612444","url":null,"abstract":"A novel low-cost smart interface for self-generating sensors, for instance thermopiles and thermocouples, has been presented. The proposed interface acts as an asynchronous converter for DC voltages or currents employing a relaxation oscillator which output is a period-modulated signal. A microcontroller is used to measure the output signal from the interface, process data and output the measured sensor signal. The system does not need the accurate A/D converter. Experimental results show that the interface is able to measure voltages in the range of 0/spl sim/5 V, with an accuracy and resolution of /spl plusmn/64 ppm and 20 ppm, respectively. The measurement time is less than 100 ms.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"370 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122066579","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: 7
Improved design of inductive voltage divider winding 电感分压器绕组的改进设计
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.603974
T. Skubis
{"title":"Improved design of inductive voltage divider winding","authors":"T. Skubis","doi":"10.1109/IMTC.1997.603974","DOIUrl":"https://doi.org/10.1109/IMTC.1997.603974","url":null,"abstract":"The paper presents a parameter improvement method of the multifilar winding, commonly used in inductive voltage dividers. The method allows one to determine an optimal section connection sequence in multifilar bundle of wires forming the multisectional winding. The procedure of measurement of capacitances between pairs of individual sections and capacitances between individual section and its shield is presented. These capacitances are arguments of an optimizing function. Examples of calculations show that the inherent scatter of the multifilar winding capacitance can be used for winding parameter improvement. By using this method it is possible to lower the input capacitance of the winding as well as the correcting capacitors values by up to 2.5 times.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"319 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116817180","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
Indirect conductivity measurement of liquids in flexible containers 柔性容器中液体的间接电导率测量
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.610260
S. Nihtianov, G. Meijer
{"title":"Indirect conductivity measurement of liquids in flexible containers","authors":"S. Nihtianov, G. Meijer","doi":"10.1109/IMTC.1997.610260","DOIUrl":"https://doi.org/10.1109/IMTC.1997.610260","url":null,"abstract":"This paper presents an indirect method for measuring the conductivity of liquid foods, packed in flexible TEA (Tetra Brik Aseptic) food-containers. The method is intended for intensive (100%) non-invasive sterility-testing of aseptically packed liquid food-products. It can also be applied for other containers, which have similar construction. An electric model is developed for the measured impedance, which consists of a few components. Some of them are dependent on the conductivity /spl sigma/ of the liquid. Relation is derived between the active component R of the measured impedance and the conductivity of the food. The sensitivity and the robustness of the method is investigated with respect to its application under industrial conditions and experimental results are presented.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"111 3S 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129774748","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: 10
An active suspension of linear oscillatory actuator using eddy current sensor 采用涡流传感器的线性振荡作动器主动悬架
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.612365
C.E. Lin, J. Wang
{"title":"An active suspension of linear oscillatory actuator using eddy current sensor","authors":"C.E. Lin, J. Wang","doi":"10.1109/IMTC.1997.612365","DOIUrl":"https://doi.org/10.1109/IMTC.1997.612365","url":null,"abstract":"Vibration suppression characteristics of an active magnetic suspension system are investigated. The vibration force compensation results from a linear oscillatory actuator (LOA) using feedback control from system measurements. The feedback terms are related to relative suspension deflection, relative suspension velocity, absolute mass acceleration and absolute mass velocity. By proper feedback the measured signals to the actuator controller, the damping effect of the proposed active suspension can be accomplished for better performance with some parameter adjustments.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128255402","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
Quality-driven design of integrated systems 集成系统的质量驱动设计
IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings Pub Date : 1997-05-19 DOI: 10.1109/IMTC.1997.603921
L. Józwiak
{"title":"Quality-driven design of integrated systems","authors":"L. Józwiak","doi":"10.1109/IMTC.1997.603921","DOIUrl":"https://doi.org/10.1109/IMTC.1997.603921","url":null,"abstract":"The importance of the integrated system's market, technology revolution, explosion of new market competitors, high requirements of embedded systems, and many other factors create a situation in which the quality-driven design is a necessity. The aim of this paper is to discuss some theoretical and methodological foundations of the quality-driven design and to consider some implications of the modern quality concepts on design exploration techniques, design decision making, design reuse and design validation.","PeriodicalId":124893,"journal":{"name":"IEEE Instrumentation and Measurement Technology Conference Sensing, Processing, Networking. IMTC Proceedings","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1997-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127009576","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: 4
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