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Research on position sensor magnetic encoder based on the elevator door machine servo system 基于电梯门机伺服系统的位置传感器磁编码器研究
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757142
Jia Yu-hui, Wu Hong-xing, Kou Bao-quan, Li Li-yi
{"title":"Research on position sensor magnetic encoder based on the elevator door machine servo system","authors":"Jia Yu-hui, Wu Hong-xing, Kou Bao-quan, Li Li-yi","doi":"10.1109/ICSENST.2008.4757142","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757142","url":null,"abstract":"Control system of elevator door is a typical motor servo system, elevator door switch is the implementing agency. With the rapid development of the national economy, modern buildings is increasing, elevator is becoming an indispensable tool in daily life. Elevator normal operation is relation to personal safety, therefore, the elevator door not only demand the switch of action reliable and accurate, but also a rapid responsive and dynamic characteristics, and this put forward a higher requirements for the rotor and the position sensor. Magnetic encoder is compact, low-cost and high reliability, in this paper, permanent magnet synchronous motor is used as the implementation for the elevator door motor, magnetic encoder is used as rotor position detection, the principle of magnetic encoder is analyzed, the signal processing circuit of magnetic encoder and motor DSP interface control circuits are designed, and absolute position signal space vector control is used , the experimental result shows that the control system works well.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"2023 1","pages":"431-434"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78216144","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
The research on the performance of the micro-machined gyroscope at low ambient pressure 微机械陀螺仪在低压环境下的性能研究
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757066
Qiancheng Zhao, Longtao Lin, J. Cui, Dachuan Liu, X. Chi, G. Yan
{"title":"The research on the performance of the micro-machined gyroscope at low ambient pressure","authors":"Qiancheng Zhao, Longtao Lin, J. Cui, Dachuan Liu, X. Chi, G. Yan","doi":"10.1109/ICSENST.2008.4757066","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757066","url":null,"abstract":"This paper proposed an effective method to test some key parameters of the micro-machined gyroscope at low ambient pressure condition including quality factor, amplitude of the drive signal, bandwidth and scale factor. The results demonstrated that the best working pressure must confine some pressure range.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"95 1","pages":"21-24"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78329923","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
Modeling of capacitive sensor filled with elastic dielectrics and its advantages 弹性介质填充电容式传感器的建模及其优点
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757149
O. P. Thakur, A.K. Singh
{"title":"Modeling of capacitive sensor filled with elastic dielectrics and its advantages","authors":"O. P. Thakur, A.K. Singh","doi":"10.1109/ICSENST.2008.4757149","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757149","url":null,"abstract":"Electrostriction phenomena and mathematical modeling in respect of capacitive sensor filled with elastic dielectric material have been described. A comparative theoretical analysis of the traditional air gap capacitive sensor with the electrostriction based solid-state capacitive sensor has been carried out thoroughly. Difficulties and limitations with air gap capacitive sensor are highlighted. Solid-state capacitive sensor with elastic dielectric material sandwiched between the compliant electrodes exhibits higher mechanical and electrical stability, sensitivity, higher tolerance with environment and withstands large load in comparison to the air gap capacitive sensor. An experimental setup with proper solution has been described for the measurement of relative capacitance variation. An alternative method of current-mode bridge has also been suggested for the purpose of sensing pressure and strain with high accuracy.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"8 1","pages":"467-471"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89775616","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
Parasitic resistance elimination for the flexibly thin film grid pressure sensor 柔性薄膜栅格压力传感器寄生电阻的消除
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757168
Z. Gaofeng, Zhao Yulong, J. Zhuangde
{"title":"Parasitic resistance elimination for the flexibly thin film grid pressure sensor","authors":"Z. Gaofeng, Zhao Yulong, J. Zhuangde","doi":"10.1109/ICSENST.2008.4757168","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757168","url":null,"abstract":"The original structure of the flexibly thin film grid pressure sensor often suffers from the parasitic resistance of itself structure. In order to eliminate the parasitic resistance, the new ldquointerlayerrdquo structure of this sensor with good performance indexes was brought forward and given out after defects of original structure were analyzed and pointed out. The detecting principle and fabricating procedures of new structure were narrated minutely in this paper. The corresponding experiment was done, based on the test device. The experimenting results showed that the new ldquointerlayerrdquo structure with good performance indexes could measure out interface pressure distribution between touching objects and further eliminate the parasitic resistance.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"89 1","pages":"557-562"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83871973","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 sensitive detection electronics for resistive sensor 一种用于电阻式传感器的灵敏检测电子器件
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757109
T. Islam, F. A. Siddiqui, S.A. Khan, S. Islam, Harsh
{"title":"A sensitive detection electronics for resistive sensor","authors":"T. Islam, F. A. Siddiqui, S.A. Khan, S. Islam, Harsh","doi":"10.1109/ICSENST.2008.4757109","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757109","url":null,"abstract":"Present work deals with the development of a low cost, appreciably accurate precision electronic circuit for resistive sensor where measurement of the incremental resistance with high degree of accuracy is essential. A linear and sensitive active bridge circuit requiring only few components for its hardware implementation has been proposed for measuring very small resistance change due to change in physical quantity or chemical analytes. Theory of the proposed active bridge circuit has been discussed and experimental results have been compared with conventional bridge circuit. Initial measurements are made with Pt-100 Strain gauge sensor but it can be extended to other resistive sensors of practical importance. Results show that the active bridge circuit is almost four times more sensitive than conventional full bridge circuit.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"71 1","pages":"259-264"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82215097","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
Research on rotating encoder zero-position location based on missile steering gear 基于导弹舵机的旋转编码器零位定位研究
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757111
Huang Yu-ping, Wu Hong-xing, Kou Bao-quan, Li Li-yi
{"title":"Research on rotating encoder zero-position location based on missile steering gear","authors":"Huang Yu-ping, Wu Hong-xing, Kou Bao-quan, Li Li-yi","doi":"10.1109/ICSENST.2008.4757111","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757111","url":null,"abstract":"Permanent magnet synchronous motor (PMSM) is applied to aerospace missile steering gear as the structure of servo position with excellent performance of small volume, precision and reliability. For reducing error of actuator, it is important that initial position of actuator should keep consistent with rotorpsilas initial position because the dynamic key parameters of servo system are influenced by rotor position. Therefore, it is a key point that actuatorpsilas zero position and rotating encoder rotorpsilas should be coincident. In this paper, rotating encoder is applied to position sensor in missile steering gear servo system for testing rotor position, and the method of confirming initial position is advanced, then the method which keeps actuatorpsilas zero position and rotating encoder rotorpsilas being coincident is advanced. The better control effect is attained by combining space vector control strategy.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"36 1","pages":"269-272"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82411443","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 new method to detect zero drift and sensitivity of a Coriolis Mass Flow Meter (CMFM) by using phasor control 提出了一种利用相量控制检测科里奥利质量流量计零漂移和灵敏度的新方法
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757160
H. Rock, F. Koschmieder
{"title":"A new method to detect zero drift and sensitivity of a Coriolis Mass Flow Meter (CMFM) by using phasor control","authors":"H. Rock, F. Koschmieder","doi":"10.1109/ICSENST.2008.4757160","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757160","url":null,"abstract":"Coriolis mass flow meters (CMFM) are directly measuring mass flow, by analyzing the induced oscillation of the measuring pipe. The accuracy is high and the sensitivity regarding other features of the flow to be measured like heat conductivity, heat capacity and viscosity is rather small. CMFM available at the marketplace often show changes in zero point and sensitivity during normal operation. The well known procedure for online determination of zero and sensitivity is very sensitive regarding the compensation forces to be calculated and deserves a cyclic state transition of the meter which is rather time consuming (about 2 to 3 seconds). The new approach using a phasor model of the meter together with an observer for the phasor variables is a major contribution to enhance the performance of the control system, as the cyclic stimuli applied to the meter are now interpreted as disturbances acting on the control loop. The phasor controller, mainly a nonlinear controller for phase and amplitude, is able to compensate the disturbances much faster than in the previous approach.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"6 1","pages":"518-522"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82815284","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
Piezoelectric zinc oxide thin film for MEMS application: A comparative study 压电氧化锌薄膜在MEMS中的应用:比较研究
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757165
N. Gokhale, M. Parmar, K. Rajanna, M. Nayak
{"title":"Piezoelectric zinc oxide thin film for MEMS application: A comparative study","authors":"N. Gokhale, M. Parmar, K. Rajanna, M. Nayak","doi":"10.1109/ICSENST.2008.4757165","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757165","url":null,"abstract":"We report here, the study carried out on piezoelectric thin film for MEMS/Microsensor applications. The study includes characterization of sputtered thin film using indirect methods and comparison of behavior using cantilever technique for the confirmation of piezoelectric property. A suitable experimental setup was designed and fabricated for subjecting the cantilever to vibrate. The data was recorded for piezoelectric thin films deposited with different compositions. It is clearly evident that the direct method is inexpensive and easier for determining the quality of the deposited piezoelectric thin film.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"8 1","pages":"543-546"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89658706","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: 9
An experimental result on system identification over networks using delta-sigma transformation 利用δ - σ变换进行网络系统辨识的实验结果
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757175
T. Azuma, H. Kato, S. Adachi
{"title":"An experimental result on system identification over networks using delta-sigma transformation","authors":"T. Azuma, H. Kato, S. Adachi","doi":"10.1109/ICSENST.2008.4757175","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757175","url":null,"abstract":"In this paper, an method to system identification over networks using 1 bit delta-sigma transformation is proposed and the efficacy of the proposed method is verified based on experimental results. Accurate mathematical models are needed to achieve intelligent control with good performances in control engineering. It is easy to obtain those mathematical models if exact input-output data of a controlled object is available by applying system identification techniques. However it is difficult to obtain the exact input-output data over networks because the data is transformed from analog data into digital data. The proposed method provides a method to build mathematical models of controlled objects over networks.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"98 1","pages":"595-599"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91085941","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
Heterodyne range imaging in real-time 外差距离实时成像
2008 3rd International Conference on Sensing Technology Pub Date : 2008-11-01 DOI: 10.1109/ICSENST.2008.4757073
A. Jongenelen, D. Carnegie, A. Dorrington, A. Payne
{"title":"Heterodyne range imaging in real-time","authors":"A. Jongenelen, D. Carnegie, A. Dorrington, A. Payne","doi":"10.1109/ICSENST.2008.4757073","DOIUrl":"https://doi.org/10.1109/ICSENST.2008.4757073","url":null,"abstract":"A versatile full-field range imaging system has previously been constructed. This system is configurable in software to produce either high precision or fast acquisition range images. Indicatively a 10 second exposure has been shown to produce a range image of sub-millimeter precision, whilst video frame rate (30 fps) acquisition provides for centimetre precision. Currently the acquisition time of the system is to a large degree constrained by the off-line processing of the frames by an external computer. This paper presents an alternative to the off-line PC image processing utilising an Altera Stratix II FPGA. Processing rates up to 30 frames per second have been achieved with the added advantage that many of the previous systempsilas existing digital electronics can also be accommodated, providing for an even more compact and flexible system.","PeriodicalId":6299,"journal":{"name":"2008 3rd International Conference on Sensing Technology","volume":"12 1","pages":"57-62"},"PeriodicalIF":0.0,"publicationDate":"2008-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75428870","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
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