N. Saidin, F. Ahmad, D. I. M. Zen, B. A. Hamida, S. Khan, H. Ahmad, K. Dimyati, S. Harun
{"title":"All-fiber graphene passively Q-switched nanosecond Thulium doped fiber laser at 1900 nm","authors":"N. Saidin, F. Ahmad, D. I. M. Zen, B. A. Hamida, S. Khan, H. Ahmad, K. Dimyati, S. Harun","doi":"10.1109/ICSIMA.2013.6717968","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717968","url":null,"abstract":"We successfully demonstrated a simple, compact and low cost passive Q-switched Thulium doped fiber laser (TDFL) at long wavelength of 1854.3 nm regions in conjunction with 1552 nm pump excitation. A stable pulse has been generated using graphene film based saturable absorber (SA). The graphene is synthesized by electrochemical exfoliation of graphite at room temperature in 1% sodium dodecyl sulphate (SDS) aqueous solution. Graphene flakes obtained from the process are mixed with polyethylene oxide (PEO) as the host polymer to produce free standing composite thin film which acts as a passive Q-switcher in the TDFL ring cavity. The SA is fabricated by sandwiching the graphene thin film between two fiber connectors. At 1552 nm pump power of 498 mW, a stable pulse train has been observed with a repetition rate of 6.51 kHz and pulse duration of 11.51 μs. The high performances of Q-switched laser suggest that the new type of saturable absorber based on electrochemical exfoliation in conjunction with all-fiber ring cavity configuration is suitable for a Q-switcher near 1900 nm wavelength.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125588459","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}
{"title":"Design and implementation of a non-contact magnetic field measurement based fault location system for overhead transmission line","authors":"Qi Huang, Ruoting Yao, Fuchao Li, W. Zhen","doi":"10.1109/ICSIMA.2013.6717920","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717920","url":null,"abstract":"As the rapid development MEMS (micro-electromechanical systems) packaging technology and magnetoresistance material technology, MR (magnetoresistive) sensors based on magnetoresistance effect which can carry out point measurement of magnetic field may change the measurement techniques in power systems. The currently available fault location of overhead transmission line approaches are mainly based on traveling-wave technique and impedance-based measurement technique. The novel approach based on non-contact measurement of magnetic field is advantageous over traditional approaches in that it is independent of the distributed line parameters and has a location error smaller than one span. In this paper, after a brief reviewing of the whole system architecture, design of a sensor prototype and the associated monitoring software are presented, and tests are performed to verify the functionalities of the designed system. The sensor is developed based on a 3-D AMR (anisotropic magnetoresistance) sensor and the software supports GIS interface, making the fault location intuitively clear and convenient.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122648368","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}
{"title":"A neural network students' performance prediction model (NNSPPM)","authors":"P. M. Arsad, N. Buniyamin, J. Manan","doi":"10.1109/ICSIMA.2013.6717966","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717966","url":null,"abstract":"In the academic industry, students' early performance prediction is important to academic communities so that strategic intervention can be planned before students reach the final semester. This paper presents a study on Artificial Neural Network (ANN) model development in predicting academic performance of engineering students. Cumulative Grade Point Average (CGPA) was used to measure the academic achievement at semester eight. The study was conducted at the Faculty of Electrical Engineering, Universiti Teknologi MARA (UiTM), Malaysia. Students' results for the fundamental subjects in the first semester were used as independent variables or input predictor variables while CGPA at semester eight was used as the output or the dependent variable. The study was done for two different entry points namely Matriculation and Diploma intakes. Performances of the models were measured using the coefficient of Correlation R and Mean Square Error (MSE). The outcomes from the study showed that fundamental subjects at semester one and three have strong influence in the final CGPA upon graduation.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122859536","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}
{"title":"Implementation and characterization of a reconfigurable time domain reflectometry system","authors":"S. Balon, Joel Joseph S. Marciano Junior","doi":"10.1109/ICSIMA.2013.6717971","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717971","url":null,"abstract":"A practical architecture for pulsed radar and time domain reflectometry (TDR) is presented in this paper. Incorporating the software-defined radio paradigm, the prototype features a reconfigurable transceiver. Reconfigurability is achieved by implementing an arbitrary waveform generator (AWG) in a Field Programmable Gate Array (FPGA) and suitable digital-to-analog converters (DAC). The AWG allows for changes in the width and shape of a transmitted pulse on-the-fly, i.e. without the need for reprogramming. In the current implementation, the transmitter is able to achieve a minimum pulse width of 6.25ns, which result in a 62.5 cm range resolution for non-dispersive medium with 0.67 velocity factor. The resolution was verified by testing several cable setups with two differently-spaced discontinuities. The receiver, on the other hand, employs equivalent time sampling (ETS) through on-board analog-to-digital converters (ADC) and a custom delay generator. The ETS receiver was able to attain 0.357ns equivalent time sampling interval, which is equivalent to a 2.8 GHz sampling rate for periodic signals. This allows the transceiver to locate a discontinuity with 3.57cm accuracy in a non-dispersive medium with a velocity factor of 0.67, which was verified through experiments performed on open circuit-terminated cables with varying length. The system is intended to be used in detecting faults on a TDR cable buried underground to detect slope movement.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"232 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131507177","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}
Matthias Lechtenberg, K. Gorner, J. Gotze, C. Rehtanz
{"title":"Improved parameter estimation under non-stationary circumstances using segmentation and back projection","authors":"Matthias Lechtenberg, K. Gorner, J. Gotze, C. Rehtanz","doi":"10.1109/ICSIMA.2013.6717935","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717935","url":null,"abstract":"Common phasor measurement units (PMUs) comply with IEEE Standard C37.118 and are capable of managing the test cases formulated inside. These mainly describe electro-mechanic processes (besides step tests). However, electromagnetic processes are not considered, but filtered out. Using subspace-based estimation algorithms provides knowledge of electro-magnetic components within the measurement signal. In addition, the system frequency can be isolated easily. The challenge of (sliding-) window-based algorithms - subspace-based as well as DFT-based methods - is a) finding a trade-off between accuracy and delay (i.e. window length) and b) the inherent assumption of (quasi-) stationarity. In this paper, the concepts of segmentation and back projection are presented which counter these challenges under the assumption of time-critical, time-stamped measurements but not time-critical delivery.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123595858","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}
{"title":"Design of virtual power frequency meter based on IEC 61000-4-30 power quality standard","authors":"R. Tan, S. K. Wong, T. C. Wong","doi":"10.1109/ICSIMA.2013.6717944","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717944","url":null,"abstract":"This paper presents the design of power frequency meter based on IEC 61000-4-30 standard using virtual instrument approach. The virtual power frequency meter hardware consists of a zero crossing detection circuitry and a low cost USB data acquisition card. The proposed virtual power frequency meter design utilizes the zero crossing detection circuitry and the counter unit of the data acquisition card to count the number of zero crosses produces by the power system sinusoidal waveform. The computer system clock is used to keep track of the total number of zero crosses counted in every 10 seconds interval to computes the power frequency which can achieve up to 0.05Hz resolution. This method greatly simplifies the hardware implementation and reduces computation complexity in software. The virtual power frequency meter was successfully implemented and tested on wall power socket. This paper demonstrates the implementation of virtual power frequency meter using zero cross detector and counter unit that compliance with IEC 61000-4-30 standard.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122046985","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}
Muhammad Taufiq Bin Zainul Abidin, Mohd Khairul Ridhwan Rosli, Sarah Addyani Shamsuddin, N. K. Madzhi, M. F. Abdullah
{"title":"Initial quantitative comparison of 940nm and 950nm infrared sensor performance for measuring glucose non-invasively","authors":"Muhammad Taufiq Bin Zainul Abidin, Mohd Khairul Ridhwan Rosli, Sarah Addyani Shamsuddin, N. K. Madzhi, M. F. Abdullah","doi":"10.1109/ICSIMA.2013.6717938","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717938","url":null,"abstract":"This project uses a non-invasive method for measuring the blood glucose concentration levels. By implementing two infrared light with different wavelength; 940nm and 950nm based on the use of light emitting diodes and measure transmittance through solution of distilled water and d-glucose of concentration from 0mg/dL to 200mg/dL by using a 1000nm photodiode. It is observed that the output voltage from the photodiode increased proportionally to the increased of concentration levels. The relation observed was linear. Nine subjects with the same age but different body weight have been used to observe the glucose level during fasting and non-fasting. During fasting the voltage is about 0.13096V to 0.236V and during non-fasting the voltage range is about 0.12V to 0.256V. This method of measuring blood glucose level may become a preferably choice for diabetics because of the non-invasive and may extend to the general public. For having a large majority people able to monitor their blood glucose levels, it may prevent hypoglycemia, hyperglycemia and perhaps the onset of diabetes.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"8 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121001022","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}
Md Noman Habib Khan, Sheroz Khan, T. Gunawan, Z. Shahid
{"title":"DC-AC inverter with perspective of common mode and wave-shaping","authors":"Md Noman Habib Khan, Sheroz Khan, T. Gunawan, Z. Shahid","doi":"10.1109/ICSIMA.2013.6717931","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717931","url":null,"abstract":"The use of photovoltaic panels for is becoming popular all over the world for producing electricity for grid connection via using transformer. Grid-connection of solar panel without using a transformer is being reported nowadays. Photovoltaic (PV) grid connected converter without transformer is associated with the problem of non-existent galvanic isolation as a result of transformer absence. The most prominent one issue is the development of common mode voltage leading to common-voltage leakage current. Hence the grid connected PV module of transformer-less panel, though improve power efficiency, suffers from the loss of power due to leakage current. The leakage current in between grid connection and PV panel develops through paths made up by the parasitic capacitances. Moreover, some topologies propose for omitting this abysmal common mode leakage current. This paper shows how low-pass filters of different order affect the wave-shape of the resulting output voltage in the presence of common mode leakage current in transformer-less topologies.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124023021","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}
S. Islam, Md Rashed Asger, Md. Abid Hasan, M. Mottalib
{"title":"A modified algorithm for variable length DNA motif discovery","authors":"S. Islam, Md Rashed Asger, Md. Abid Hasan, M. Mottalib","doi":"10.1109/ICSIMA.2013.6717960","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717960","url":null,"abstract":"Motifs are meaningful short sequences which conserve itself during the evolution and discovery of motifs are used to put DNA sequences into their corresponding categories. Different evolutionary methods have been used for motif discovery i.e. genetic algorithm, PSO etc. In this paper we have incorporated the concept of Linear-PSO to find motifs from DNA sequences. However, Linear-PSO is a slower method which involves linear search for motif discovery. So we have introduced the function of index table to make the motif discovery faster. Before comparing the target motif (a particle selected by Linear-PSO in each cycle) linearly with other DNA sequences, we have first created an index table that contains the information about the index of first base of each of the target motifs. Identifying with the help of index table has lessened the time required for motif discovery. Experimental results show that the proposed method can discover motifs with higher validity and better efficiency.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"98 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132480006","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}
{"title":"Electrical measurement of modified sol-gel derived lead titanate thin films capacitor","authors":"Z. Nurbaya, Z. Habibah, M. Rusop","doi":"10.1109/ICSIMA.2013.6717941","DOIUrl":"https://doi.org/10.1109/ICSIMA.2013.6717941","url":null,"abstract":"The thin films of lead titanate (PbTiO3) have been prepared on ITO coated glass substrate by means of storage element for DC power application. The solution was prepared by modified sol-gel process that involved sonication process to ensure the uniform nanoparticulates formation before ageing stage take parts. In the need to compensate the lead loss, extra 10mol% of Pb content was added to the solution. The thin films were deposited at high spin speed around 3500 rpm at 30 seconds with multiple coating processes. Microstructural observation was done through scanning electron microscopy that shows the existence of zero layers between PbTiO3 and ITO electrode and the film thickness was about ~420nm. Besides that, electrical properties of PbTiO3 thin films were measured by using impedance spectroscope analyzer and 2-points probe solar simulator for dielectric and i-v characteristic respectively. It was found that the dielectric constant value achieved 153 at 1000 Hz plus with approachable of 0.723 energy loss. It is certainly noticed that the thin films was in ohmic behavior where the current density was about 10-9A/cm2.","PeriodicalId":182424,"journal":{"name":"2013 IEEE International Conference on Smart Instrumentation, Measurement and Applications (ICSIMA)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132816233","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}