Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727645
K. Mori, K. Naito, Hideo Kobayashi
This paper aims to provide performance enhancement to cluster-tree type IEEE 802.15.4 WSNs under cluster mobility environments. The cluster mobility causes severe beacon collisions and greatly degrades the system performance. To enhance the system performance of WSNs with cluster mobility, the paper proposes a combination scheme of the simple autonomous active period selection control and the traffic adaptive distributed backoff mechanism, previously proposed in our recent work, and investigates an effect of the distributed backoff to the system performance. The results evaluated by computer simulation demonstrate the proposed scheme can improve the transmission performance and power efficiency in cluster-tree type WSNs under cluster mobility environments.
{"title":"Effect of distributed backoff mechanism to simple autonomous active period selection control in cluster-tree type IEEE 802.15.4 WSNs with cluster mobility","authors":"K. Mori, K. Naito, Hideo Kobayashi","doi":"10.1109/ICSENST.2013.6727645","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727645","url":null,"abstract":"This paper aims to provide performance enhancement to cluster-tree type IEEE 802.15.4 WSNs under cluster mobility environments. The cluster mobility causes severe beacon collisions and greatly degrades the system performance. To enhance the system performance of WSNs with cluster mobility, the paper proposes a combination scheme of the simple autonomous active period selection control and the traffic adaptive distributed backoff mechanism, previously proposed in our recent work, and investigates an effect of the distributed backoff to the system performance. The results evaluated by computer simulation demonstrate the proposed scheme can improve the transmission performance and power efficiency in cluster-tree type WSNs under cluster mobility environments.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133895616","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727654
K. Niwa, Yusuke Hioka, Kazunori Kobayashi
A novel sensing technique called diffused sensing which exploits homogeneous and isotropically reflected waves is applied for estimating wave intensity. By analyzing the observed signals with a sensor array, the intensity of the wave arriving from each source is estimated. However, it is difficult to estimate the wave intensity from a mixture of waves of various wavelengths. With diffused sensing, observation of waves is devised to decorrelate the transfer function between a sensor and the wave source to that of another sensor; this improves the performances of sensor arrays to distinguish multiple different waves. Numerical simulations showed that diffused sensing can facilitate estimation of the distribution of the wave intensity whose wavelength stretches over a broad range.
{"title":"Wave intensity estimation over broad wavelengths based on diffused sensing","authors":"K. Niwa, Yusuke Hioka, Kazunori Kobayashi","doi":"10.1109/ICSENST.2013.6727654","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727654","url":null,"abstract":"A novel sensing technique called diffused sensing which exploits homogeneous and isotropically reflected waves is applied for estimating wave intensity. By analyzing the observed signals with a sensor array, the intensity of the wave arriving from each source is estimated. However, it is difficult to estimate the wave intensity from a mixture of waves of various wavelengths. With diffused sensing, observation of waves is devised to decorrelate the transfer function between a sensor and the wave source to that of another sensor; this improves the performances of sensor arrays to distinguish multiple different waves. Numerical simulations showed that diffused sensing can facilitate estimation of the distribution of the wave intensity whose wavelength stretches over a broad range.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"519 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134273586","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727668
Jing-Yau Tang, Min-Haw Wang, Ming-Kun Chen, L. Jang
This paper presents a near-infrared (NIR) electro-optical fluidic device with pulse width modulation (PWM) for flow injection glucose analysis. The device contains two emitter light emitting-diodes (LEDs), two photodiodes, and a poly (methyl methacrylate (PMMA) micro-fluidic. The pulsed LEDs have wavelengths of 1450 nm and 1650 nm (in the NIR spectrum range). Five concentrations of glucose solution can be detected by the proposed device. The LED was pulsed of different PWM and pulse frequency affect the amount of light received light voltage response for glucose detection. The optical fluid device is a cost-effective, simple structure without fibers and lenses for various glucose detection applications.
{"title":"Glucose detection using an electro-optical fluidic device based on pulse width modulation","authors":"Jing-Yau Tang, Min-Haw Wang, Ming-Kun Chen, L. Jang","doi":"10.1109/ICSENST.2013.6727668","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727668","url":null,"abstract":"This paper presents a near-infrared (NIR) electro-optical fluidic device with pulse width modulation (PWM) for flow injection glucose analysis. The device contains two emitter light emitting-diodes (LEDs), two photodiodes, and a poly (methyl methacrylate (PMMA) micro-fluidic. The pulsed LEDs have wavelengths of 1450 nm and 1650 nm (in the NIR spectrum range). Five concentrations of glucose solution can be detected by the proposed device. The LED was pulsed of different PWM and pulse frequency affect the amount of light received light voltage response for glucose detection. The optical fluid device is a cost-effective, simple structure without fibers and lenses for various glucose detection applications.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126876238","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727680
A. Dahiya, O. P. Thakur, J. Juneja
Many ceramics have been studied due to their importance in the fabrication of multilayer ceramic capacitors and actuators. Potassium Sodium Niobate (K0.5Na0.5NbO3) is one of the most promising candidate of lead free piezoelectric ceramics used in sensors and actuators. K0.5Na0.5NbO3 (KNN) was successfully synthesized by solid state reaction method. X-ray diffraction studies (XRD) confirmed the single phase structure. Capacitance of the sample sintered at 11000C as a function of temperature and frequency was measured. The variation of electrically induced strain with the applied electric field has also been studied.
{"title":"Sensing and actuating applications of potassium sodium niobate: Use of potassium sodium niobate in sensor and actuator","authors":"A. Dahiya, O. P. Thakur, J. Juneja","doi":"10.1109/ICSENST.2013.6727680","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727680","url":null,"abstract":"Many ceramics have been studied due to their importance in the fabrication of multilayer ceramic capacitors and actuators. Potassium Sodium Niobate (K0.5Na0.5NbO3) is one of the most promising candidate of lead free piezoelectric ceramics used in sensors and actuators. K0.5Na0.5NbO3 (KNN) was successfully synthesized by solid state reaction method. X-ray diffraction studies (XRD) confirmed the single phase structure. Capacitance of the sample sintered at 11000C as a function of temperature and frequency was measured. The variation of electrically induced strain with the applied electric field has also been studied.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123432026","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727607
P. Bhattacharyya, Sunipa Roy, C. Sarkar
MEMS based gas sensors offer superior performance compared to conventional ceramic gas sensors owing to their low power consumption, high sensitivity, faster response and compatibility to CMOS circuits. The design of microheater on the thin membrane of the MEMS structure is crucial to achieve the required temperature. In this paper a meander shaped microheater has been designed using Intellisuite v8.2 and fabricated using a nickel alloy (DilverP1) on micromachined silicon platform (2mm×2mm). A low temperature chemical deposition technique (using Sodium Zincate bath) has been adopted to deposit the sensing layer on top of the microheater. Structural morphology of ZnO was studied by FESEM. The hexagonal nanoflake like structures having average size of 50-70nm were formed. Resistive planar contacts (Au-Au) have been taken and the device was then tested for its hydrogen sensing property at different bias voltages (0-3V) and with different operating temperatures (30-210 °C) taking N2 as a carrier gas. The optimum operating temperature was found ~ 150°C with a high response magnitude of ~80.7% and appreciably fast response time ~29.6s at a H2 concentration of 20000ppm. At lower concentration level (100ppm) the sensor performance was also found to be promising with RM of ~36.8% and response time of 40.8s.
{"title":"Integration of ZnO nanoflakes with MEMS platform and its application as gas sensor","authors":"P. Bhattacharyya, Sunipa Roy, C. Sarkar","doi":"10.1109/ICSENST.2013.6727607","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727607","url":null,"abstract":"MEMS based gas sensors offer superior performance compared to conventional ceramic gas sensors owing to their low power consumption, high sensitivity, faster response and compatibility to CMOS circuits. The design of microheater on the thin membrane of the MEMS structure is crucial to achieve the required temperature. In this paper a meander shaped microheater has been designed using Intellisuite v8.2 and fabricated using a nickel alloy (DilverP1) on micromachined silicon platform (2mm×2mm). A low temperature chemical deposition technique (using Sodium Zincate bath) has been adopted to deposit the sensing layer on top of the microheater. Structural morphology of ZnO was studied by FESEM. The hexagonal nanoflake like structures having average size of 50-70nm were formed. Resistive planar contacts (Au-Au) have been taken and the device was then tested for its hydrogen sensing property at different bias voltages (0-3V) and with different operating temperatures (30-210 °C) taking N2 as a carrier gas. The optimum operating temperature was found ~ 150°C with a high response magnitude of ~80.7% and appreciably fast response time ~29.6s at a H2 concentration of 20000ppm. At lower concentration level (100ppm) the sensor performance was also found to be promising with RM of ~36.8% and response time of 40.8s.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"92 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126192522","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727692
W. Shi
The surface-enhanced Raman scattering (SERS) from ZnO nanorod arrays (ZnONRs) was investigated. It was found that the realization of the efficient photoinduced charge transfer between the ZnONRs and the attached probe molecules is a critical prerequisite for the SERS. The SERS of the dye (Bu4N)2[Ru(dcbpyH)2-(NCS)2] with 10-7 M concentration can be observed from the ZnO nanostructures.
{"title":"SERS from ZnO nanorod arrays and its application for detecting N719","authors":"W. Shi","doi":"10.1109/ICSENST.2013.6727692","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727692","url":null,"abstract":"The surface-enhanced Raman scattering (SERS) from ZnO nanorod arrays (ZnONRs) was investigated. It was found that the realization of the efficient photoinduced charge transfer between the ZnONRs and the attached probe molecules is a critical prerequisite for the SERS. The SERS of the dye (Bu<sub>4</sub>N)<sub>2</sub>[Ru(dcbpyH)<sub>2</sub>-(NCS)<sub>2</sub>] with 10<sup>-7</sup> M concentration can be observed from the ZnO nanostructures.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117073053","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727658
R. Obara, Z. Ding, K. Shinzato, M. Nakano, J. Suehiro
The authors have proposed a new method to concentrate bacteria flowing in a microchannel by using negative dielectrophoretic force generated by using a thin dielectric layer. In this study, it was demonstrated application of the bacteria concentration to improve throughput of optical detection of bacteria in microchannel.
{"title":"Higher throughput of optical detection of bacteria concentrated by negative dielectrophoresis","authors":"R. Obara, Z. Ding, K. Shinzato, M. Nakano, J. Suehiro","doi":"10.1109/ICSENST.2013.6727658","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727658","url":null,"abstract":"The authors have proposed a new method to concentrate bacteria flowing in a microchannel by using negative dielectrophoretic force generated by using a thin dielectric layer. In this study, it was demonstrated application of the bacteria concentration to improve throughput of optical detection of bacteria in microchannel.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124296943","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727795
P. Geekiyanage, H. Jayarathne, L. Jayasinghe, Y. Amarasinghe
The research related to this paper is focused on developing a low cost autonomous robotic platform for domestic use which can be upgraded to perform multiple tasks. As the first step of it, we present here a testing prototype focusing on navigation and localization. Here the construction of the prototype is discussed where an overview of the platform is given. The driving mechanism and navigation and localization methodology is explained in details with the algorithms used. Finally the paper presents the test results generated through the testing platform including the map generated by the robot.
{"title":"Development of upgradable mobile platform for smart applications","authors":"P. Geekiyanage, H. Jayarathne, L. Jayasinghe, Y. Amarasinghe","doi":"10.1109/ICSENST.2013.6727795","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727795","url":null,"abstract":"The research related to this paper is focused on developing a low cost autonomous robotic platform for domestic use which can be upgraded to perform multiple tasks. As the first step of it, we present here a testing prototype focusing on navigation and localization. Here the construction of the prototype is discussed where an overview of the platform is given. The driving mechanism and navigation and localization methodology is explained in details with the algorithms used. Finally the paper presents the test results generated through the testing platform including the map generated by the robot.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124338819","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727610
A. I. Zia, S. Mukhopadhyay, P. Yu, I. Al-Bahadly, A. Yudhana, C. Gooneratne, J. Kosel
A study was conducted on detection and concentration measurement of estrone glucuronide (E1G), an important metabolite of the ovarian hormone estradiol, by using Electrochemical Impedance Spectroscopy (EIS) technique. A miniature planar Inter-digital (ID) capacitive sensor fabricated on single crystal silicon substrate with sputtered gold electrodes coupled with EIS was used to measure conductivity, permeability and dielectric properties of the said hormone metabolite. A thin film of Silicon Nitride (50 um) was coated on the sensor as passivation layer to avoid Faradic currents through the sensor. Impedance spectrums were obtained with various concentrations of E1G in buffer solution by exposing the samples to electrical perturbations at certain frequency range. Relationship of sample conductance with E1G concentration was studied on basis Randle's equivalent circuit model and results were analyzed to deduce Constant Phase Equivalent (CPE) Circuit model in order to evaluate the double layer capacitance produced at the solution-electrode interface due to kinetic processes taking place in the electrochemical cell. The sensitivity of the sensor was evaluated against concentration. The result analysis confirmed that fabricated ID sensor together with EIS can provide a rapid and successful low cost sensing system which can help a lay user to determine peak time for feminine reproductive fertility at home without submitting samples for an expensive and time consuming laboratory test.
{"title":"Ovarian Hormone Estrone Glucuronide (E1G) quantification-impedimetric electrochemical spectroscopy approach","authors":"A. I. Zia, S. Mukhopadhyay, P. Yu, I. Al-Bahadly, A. Yudhana, C. Gooneratne, J. Kosel","doi":"10.1109/ICSENST.2013.6727610","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727610","url":null,"abstract":"A study was conducted on detection and concentration measurement of estrone glucuronide (E1G), an important metabolite of the ovarian hormone estradiol, by using Electrochemical Impedance Spectroscopy (EIS) technique. A miniature planar Inter-digital (ID) capacitive sensor fabricated on single crystal silicon substrate with sputtered gold electrodes coupled with EIS was used to measure conductivity, permeability and dielectric properties of the said hormone metabolite. A thin film of Silicon Nitride (50 um) was coated on the sensor as passivation layer to avoid Faradic currents through the sensor. Impedance spectrums were obtained with various concentrations of E1G in buffer solution by exposing the samples to electrical perturbations at certain frequency range. Relationship of sample conductance with E1G concentration was studied on basis Randle's equivalent circuit model and results were analyzed to deduce Constant Phase Equivalent (CPE) Circuit model in order to evaluate the double layer capacitance produced at the solution-electrode interface due to kinetic processes taking place in the electrochemical cell. The sensitivity of the sensor was evaluated against concentration. The result analysis confirmed that fabricated ID sensor together with EIS can provide a rapid and successful low cost sensing system which can help a lay user to determine peak time for feminine reproductive fertility at home without submitting samples for an expensive and time consuming laboratory test.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"160 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124476877","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}
Pub Date : 2013-12-01DOI: 10.1109/ICSENST.2013.6727782
Xuewen Peng, Huang Jun
This paper proposes a new eddy current testing sensor composed of three planar fan-shaped circumferential gradient winding spiral coils. We study the crack detection principle by using the ECT sensor. The experiment of crack detection is set up and a series of samples machined with a slot at different size are detected by using the ECT sensor. Finally the quantitative estimations of crack width, depth and extension direction are studied, which prove the method is feasible and reliable.
{"title":"A new eddy current sensor composed of three circumferential gradient winding coils","authors":"Xuewen Peng, Huang Jun","doi":"10.1109/ICSENST.2013.6727782","DOIUrl":"https://doi.org/10.1109/ICSENST.2013.6727782","url":null,"abstract":"This paper proposes a new eddy current testing sensor composed of three planar fan-shaped circumferential gradient winding spiral coils. We study the crack detection principle by using the ECT sensor. The experiment of crack detection is set up and a series of samples machined with a slot at different size are detected by using the ECT sensor. Finally the quantitative estimations of crack width, depth and extension direction are studied, which prove the method is feasible and reliable.","PeriodicalId":374655,"journal":{"name":"2013 Seventh International Conference on Sensing Technology (ICST)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123002464","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：