Pub Date : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153254
Suzuka Tanaka, K. Hashikura, Md. Abdus Samad Kamal, I. Murakami, Kou Yamada
Nowadays, methods of expression emotion for robot using color are considered. These methods are useful, since various robots can use. However, these methods remains the difficulty. In this paper, we propose new model of expressing the 8 basic emotions proposed by Plutchik using color. As a result of the experiment, it was found that it is possible to express emotions with the created model. Furthermore, we found that the results differed between men and women. It is thought that this result can contribute to the development of communication robots in the future.
{"title":"Emotion Expression Model for Robot Using Color","authors":"Suzuka Tanaka, K. Hashikura, Md. Abdus Samad Kamal, I. Murakami, Kou Yamada","doi":"10.1109/ECTI-CON58255.2023.10153254","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153254","url":null,"abstract":"Nowadays, methods of expression emotion for robot using color are considered. These methods are useful, since various robots can use. However, these methods remains the difficulty. In this paper, we propose new model of expressing the 8 basic emotions proposed by Plutchik using color. As a result of the experiment, it was found that it is possible to express emotions with the created model. Furthermore, we found that the results differed between men and women. It is thought that this result can contribute to the development of communication robots in the future.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126563077","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153177
Kantanat Ratchawang, N. Hoonchareon
This study examines the impact of reverse power flows from PV generation of the prosumers on medium voltage distribution feeders, without implementation of any curtailing strategies. Two test systems well-representing actual distribution feeders, one serving an industrial area and the other a commercial area, have been employed to analyze the impacts of voltage rise and power loss at various PV penetration levels, up to 80% on energy basis (equivalent to 234% on power basis). The simulated test results reveal that such impacts of reverse power flows from the PV prosumers can be manageable in all cases. Moreover, they contribute to reduction of power loss in respective cases. The study also compares the case of distributed PV installations (prosumers) versus the single-sited lumped PV installation (a producer). It is found that the latter causes more adverse impact on both voltage rise and power loss.
{"title":"Impact of Prosumers’ PV reverse power flow on voltage rise in MV distribution systems","authors":"Kantanat Ratchawang, N. Hoonchareon","doi":"10.1109/ECTI-CON58255.2023.10153177","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153177","url":null,"abstract":"This study examines the impact of reverse power flows from PV generation of the prosumers on medium voltage distribution feeders, without implementation of any curtailing strategies. Two test systems well-representing actual distribution feeders, one serving an industrial area and the other a commercial area, have been employed to analyze the impacts of voltage rise and power loss at various PV penetration levels, up to 80% on energy basis (equivalent to 234% on power basis). The simulated test results reveal that such impacts of reverse power flows from the PV prosumers can be manageable in all cases. Moreover, they contribute to reduction of power loss in respective cases. The study also compares the case of distributed PV installations (prosumers) versus the single-sited lumped PV installation (a producer). It is found that the latter causes more adverse impact on both voltage rise and power loss.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128696456","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153243
N. Phansiri, N. Tanthanuch, B. Techaumnat
This paper presents the study of the simple particle traps for deactivation particle movement in gas insulated switchgears. The study aims to investigate the designed trap to stop the movement of the particle by using the dielectrophoretic (DEP) force in the case of moving along the dielectric surface placed on the ground electrode. Numerical calculation results show electric field distribution in the channel between high voltage and ground electrodes with and without particle trap to clarify the particle motion under the electric field. Particle traps are fabricated with silicone and polyimide. The particle deactivation performance is observed for two types of particle traps. The experimental results show that the first type of trap can deactivate 53% and 87% of all experiment conditions for aluminum and stainless-steel particle, respectively. The first type and second type can trap aluminum particles at 10% and 80%, respectively. The particle’s velocity under an electric field is an important parameter in predicting the trap performance.
{"title":"Trap for Deactivation of Conducting Particle in Gas-insulated Switchgear","authors":"N. Phansiri, N. Tanthanuch, B. Techaumnat","doi":"10.1109/ECTI-CON58255.2023.10153243","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153243","url":null,"abstract":"This paper presents the study of the simple particle traps for deactivation particle movement in gas insulated switchgears. The study aims to investigate the designed trap to stop the movement of the particle by using the dielectrophoretic (DEP) force in the case of moving along the dielectric surface placed on the ground electrode. Numerical calculation results show electric field distribution in the channel between high voltage and ground electrodes with and without particle trap to clarify the particle motion under the electric field. Particle traps are fabricated with silicone and polyimide. The particle deactivation performance is observed for two types of particle traps. The experimental results show that the first type of trap can deactivate 53% and 87% of all experiment conditions for aluminum and stainless-steel particle, respectively. The first type and second type can trap aluminum particles at 10% and 80%, respectively. The particle’s velocity under an electric field is an important parameter in predicting the trap performance.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127981712","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153176
Sukritta Paripurana, N. Kittiamornkul, O. Watcharakitchakorn, Rapeepan Keawon
This paper proposes the development of an RFID envelope coated with an antimicrobial material that can stop microorganisms’ growth while the card is still regularly used. Copper is chosen as the antimicrobial material for coating on an envelope made of polyethylene terephthalate (PET) by using DC sputtering. The antimicrobial ability of the proposed envelope is investigated against Escherichia coli (E. coli). The result shows that the survival time of E. coli on the proposed envelope is decreased compared with the PET envelope without the copper thin film coated on. Besides its antimicrobial quality, copper can let radio frequency pass through. Thus, the effectiveness of electromagnetic wave transmission through the proposed envelope coated with different thickness of a copper thin film is tested. To evaluate the performance of the proposed envelope, three experiments which cover the test of the antimicrobial ability of copper thin film, the resistance of copper thin film, and performance of RF transmission of RFID reader and tag are conducted. The results of the three experiments show that a copper thin film can prevent the microorganisms’ growth, the resistance of the copper thin film is decreasing while the thickness of the copper thin film is increasing, and the radio frequency can pass though the proposed envelope.
{"title":"Development of Antimicrobial Envelope for RFID Card","authors":"Sukritta Paripurana, N. Kittiamornkul, O. Watcharakitchakorn, Rapeepan Keawon","doi":"10.1109/ECTI-CON58255.2023.10153176","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153176","url":null,"abstract":"This paper proposes the development of an RFID envelope coated with an antimicrobial material that can stop microorganisms’ growth while the card is still regularly used. Copper is chosen as the antimicrobial material for coating on an envelope made of polyethylene terephthalate (PET) by using DC sputtering. The antimicrobial ability of the proposed envelope is investigated against Escherichia coli (E. coli). The result shows that the survival time of E. coli on the proposed envelope is decreased compared with the PET envelope without the copper thin film coated on. Besides its antimicrobial quality, copper can let radio frequency pass through. Thus, the effectiveness of electromagnetic wave transmission through the proposed envelope coated with different thickness of a copper thin film is tested. To evaluate the performance of the proposed envelope, three experiments which cover the test of the antimicrobial ability of copper thin film, the resistance of copper thin film, and performance of RF transmission of RFID reader and tag are conducted. The results of the three experiments show that a copper thin film can prevent the microorganisms’ growth, the resistance of the copper thin film is decreasing while the thickness of the copper thin film is increasing, and the radio frequency can pass though the proposed envelope.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125927735","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153213
Kitiphon Sukpreecha, S. Kittiwittayapong, T. Lertwiriyaprapa, D. Torrungrueng, K. Phaebua
This paper presents a compact spherical near-field (NF) scanning system and near-field to far-field (NF-FF) transformation for antenna radiation pattern measurement. The low-cost stepping motors together with the Arduino controller R3 model are efficiently employed. The NF data of the antenna under test (AUT) is collected by using a dual-polarized circular open-ended waveguide probe. MATLAB graphic user interface (GUI) is implemented to control the NF scanner and interface to the network analyzer. NF-FF transformation algorithm is implemented by using the spherical wave expansion with numerical integration. The evaluation of an associated double integration in the proposed NF-FF transformation is performed by using the trapezoidal rule numerical integration instead of the conventional fast Fourier transform (FFT) algorithm. Validation, FF radiation patterns of AUT from the proposed system, and simulated far-field radiation pattern are compared. It is found that the simulated FF radiation pattern and the radiation pattern from the proposed system are in good agreement. The proposed system requires less measurement space and a low-cost RF anechoic chamber room compared with the conventional FF radiation pattern measurement technique.
{"title":"Compact Spherical Near-field Scanning System for Antenna Radiation Pattern Measurement","authors":"Kitiphon Sukpreecha, S. Kittiwittayapong, T. Lertwiriyaprapa, D. Torrungrueng, K. Phaebua","doi":"10.1109/ECTI-CON58255.2023.10153213","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153213","url":null,"abstract":"This paper presents a compact spherical near-field (NF) scanning system and near-field to far-field (NF-FF) transformation for antenna radiation pattern measurement. The low-cost stepping motors together with the Arduino controller R3 model are efficiently employed. The NF data of the antenna under test (AUT) is collected by using a dual-polarized circular open-ended waveguide probe. MATLAB graphic user interface (GUI) is implemented to control the NF scanner and interface to the network analyzer. NF-FF transformation algorithm is implemented by using the spherical wave expansion with numerical integration. The evaluation of an associated double integration in the proposed NF-FF transformation is performed by using the trapezoidal rule numerical integration instead of the conventional fast Fourier transform (FFT) algorithm. Validation, FF radiation patterns of AUT from the proposed system, and simulated far-field radiation pattern are compared. It is found that the simulated FF radiation pattern and the radiation pattern from the proposed system are in good agreement. The proposed system requires less measurement space and a low-cost RF anechoic chamber room compared with the conventional FF radiation pattern measurement technique.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"112 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123749630","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153189
Tomorn Soontornnapar, T. Ploysuwan
In this paper, we propose an alternative method for fall detection using variational autoencoders (VAEs) with an attention mechanism on an existing dataset. The dataset consists of 6 different fall cases from 21 people. For effective fall detection, we introduce the use of the magnitude of the acceleration vector (MAV) of wearable gyroscope data and apply fast-Fourier transform (FFT) to create new features. These FFT features are then passed through attention modules with self-combination to form attention features. Our experimental results show that the VAE with self-attention features achieved an average accuracy of 90.7% and an F1 score of 93.8% in fall detection, demonstrating the effectiveness of the proposed method in utilizing gyroscope sensors for fall detection in the context of threshold criteria.
{"title":"Fall Detection Approach Using Variational Autoencoders with Self-Attention Features","authors":"Tomorn Soontornnapar, T. Ploysuwan","doi":"10.1109/ECTI-CON58255.2023.10153189","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153189","url":null,"abstract":"In this paper, we propose an alternative method for fall detection using variational autoencoders (VAEs) with an attention mechanism on an existing dataset. The dataset consists of 6 different fall cases from 21 people. For effective fall detection, we introduce the use of the magnitude of the acceleration vector (MAV) of wearable gyroscope data and apply fast-Fourier transform (FFT) to create new features. These FFT features are then passed through attention modules with self-combination to form attention features. Our experimental results show that the VAE with self-attention features achieved an average accuracy of 90.7% and an F1 score of 93.8% in fall detection, demonstrating the effectiveness of the proposed method in utilizing gyroscope sensors for fall detection in the context of threshold criteria.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"723 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133215524","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153319
Phuttinan Montha, Natthapong Thawin, N. Phansiri, T. Chaiyatham, Pawarut Kongsombatsuk, W. Khanngern
This article presents the service life analysis of surge protection device that uses a Raspberry Pi to manage data for equipment in an intelligent ground monitoring system. The system analyzes and validates the service life of surge protection devices (SPDs) based on the number of lightning strikes and the magnitude of current flowing through them. The system uses RS485 format data transmission to store information on a cloud database and uses SCADA software to display the status of the equipment in the system. The system also uses AC Class II SPDs for AC power and SPD DC Class II for DC power to estimate the service life of SPDs, enabling planning of operation, maintenance and enhancement of lightning protection performance and reliability. The article presents an evaluation of the service life of a SPD by analyzing the results of the relationship between the number of times and the magnitude of current flowing through it and compares it with data obtained from the SPD test according to the IEC 61643-11 standard.
{"title":"Lifetime of Surge Protection Device Analysis and Monitoring","authors":"Phuttinan Montha, Natthapong Thawin, N. Phansiri, T. Chaiyatham, Pawarut Kongsombatsuk, W. Khanngern","doi":"10.1109/ECTI-CON58255.2023.10153319","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153319","url":null,"abstract":"This article presents the service life analysis of surge protection device that uses a Raspberry Pi to manage data for equipment in an intelligent ground monitoring system. The system analyzes and validates the service life of surge protection devices (SPDs) based on the number of lightning strikes and the magnitude of current flowing through them. The system uses RS485 format data transmission to store information on a cloud database and uses SCADA software to display the status of the equipment in the system. The system also uses AC Class II SPDs for AC power and SPD DC Class II for DC power to estimate the service life of SPDs, enabling planning of operation, maintenance and enhancement of lightning protection performance and reliability. The article presents an evaluation of the service life of a SPD by analyzing the results of the relationship between the number of times and the magnitude of current flowing through it and compares it with data obtained from the SPD test according to the IEC 61643-11 standard.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"44 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115552140","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153132
K. Puntsri, Wuttichai Partipralam
Channel estimation and equalization are required to recover the information data lost due to multipath envelopment. In this study, the least squares schema with the different interpolation methods for orthogonal frequency division multiplexing in 5G is presented. The pilot-based is employed; and, its bit error rate (BER) performance of four types pilot insertion pattern in 5G standard Release – 15.8 is compared. The results are verified by numerical simulation method using Matlab@. The results showed that the fourth type pilot insertion provides the best BER; however, it has the lowest spectrum efficiency. It is depended on the communication scenarios. At the signal to noise ratio of 30 dB with the 64-QAM mapping, the BER of below 10-4 can be achieved.
{"title":"System Performance Investigation of OFDM Channel Qualization for 5G using Least Squares with Various Interpolation Methods","authors":"K. Puntsri, Wuttichai Partipralam","doi":"10.1109/ECTI-CON58255.2023.10153132","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153132","url":null,"abstract":"Channel estimation and equalization are required to recover the information data lost due to multipath envelopment. In this study, the least squares schema with the different interpolation methods for orthogonal frequency division multiplexing in 5G is presented. The pilot-based is employed; and, its bit error rate (BER) performance of four types pilot insertion pattern in 5G standard Release – 15.8 is compared. The results are verified by numerical simulation method using Matlab@. The results showed that the fourth type pilot insertion provides the best BER; however, it has the lowest spectrum efficiency. It is depended on the communication scenarios. At the signal to noise ratio of 30 dB with the 64-QAM mapping, the BER of below 10-4 can be achieved.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115753574","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153286
B. Yosrueangsak, C. Summatta, P. Prabpal, N. Thaitae, S. Sonasang
This paper presents a study on the impact of vehicles on the grid (V2G) in a microgrid power system, the system test is used IEEE 13 bus standard system. The V2G size battery at 4. SkW and the scenario to feed power from the grid is set at 70%, 60% and 50% for the capacitor of the battery. The program was tested with the Open electric power distribution (OpenDSS) program, a simulator for electric distribution networks. The V2G sites at bus 680 were simulated for 24 hours as this is the last bus for the system. The installed system is compared with the base system VS 3 case form V2G, where the maximum and minimum values of the percentage system are the same. A percentage difference of less than 1% is achieved in both active and reactive power provision. The comparison with the standard system has meaningful test results that can apply to the addition of V2G and Battery for V2G. Future research will increase the number of V2G and their mounting locations on the various bus systems in the system.
{"title":"Impact of V2G in microgrid systems with PFC","authors":"B. Yosrueangsak, C. Summatta, P. Prabpal, N. Thaitae, S. Sonasang","doi":"10.1109/ECTI-CON58255.2023.10153286","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153286","url":null,"abstract":"This paper presents a study on the impact of vehicles on the grid (V2G) in a microgrid power system, the system test is used IEEE 13 bus standard system. The V2G size battery at 4. SkW and the scenario to feed power from the grid is set at 70%, 60% and 50% for the capacitor of the battery. The program was tested with the Open electric power distribution (OpenDSS) program, a simulator for electric distribution networks. The V2G sites at bus 680 were simulated for 24 hours as this is the last bus for the system. The installed system is compared with the base system VS 3 case form V2G, where the maximum and minimum values of the percentage system are the same. A percentage difference of less than 1% is achieved in both active and reactive power provision. The comparison with the standard system has meaningful test results that can apply to the addition of V2G and Battery for V2G. Future research will increase the number of V2G and their mounting locations on the various bus systems in the system.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124210208","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 : 2023-05-09DOI: 10.1109/ECTI-CON58255.2023.10153265
Jutarat Tanarom, C. Kurupakorn, Supachai Tangsupaktada, Piyaporn Detudom, C. Jassadajin, M. Homklintian
This research examines the quantum Hall effect of a GaAs/AlGaAs heterostructure sample at the temperature of 4.2 K and measures the longitudinal Rxx and Hall resistance RH at $I = 10 mu mathrm{A}$. The corresponding Hall plateaus are represented by the depicted longitudinal Rxx and Hall resistance RH curves, however, the Hall resistance RH’s characteristics are not complete. The odd number’s plateau index i was not observed. At $i = 2$ and $i = 4$, the longitudinal resistance characteristic Rxx approaches zero. Comparing the measurement results at 1.5 K (theoretical) and 4.2 K, it was discovered that there were deviations of $1.5 mathrm{m}Omega / Omega$ ($i = 2$) and $5 mathrm{m}Omega / Omega (i =4)$, respectively. The effect of rising temperature is a factor contributing to the quantum Hall effect’s incompleteness. We can identify abnormalities while measuring or determining the time period of operation from the characteristics of the measured results. Moreover, the external magnetic field is measured around the Quantum Hall Resistance (QHR) standard system. It will be able to securely evaluate the effects of magnetic field generation produced by the superconducting magnet in the cryostat system. From the results, there is a small external magnetic field around the QHR system.
{"title":"Observation of Quantum Hall effect in GaAs/AlGaAs heterostructure at temperature dependence 4.2 K of Quantum Resistance Standard","authors":"Jutarat Tanarom, C. Kurupakorn, Supachai Tangsupaktada, Piyaporn Detudom, C. Jassadajin, M. Homklintian","doi":"10.1109/ECTI-CON58255.2023.10153265","DOIUrl":"https://doi.org/10.1109/ECTI-CON58255.2023.10153265","url":null,"abstract":"This research examines the quantum Hall effect of a GaAs/AlGaAs heterostructure sample at the temperature of 4.2 K and measures the longitudinal Rxx and Hall resistance RH at $I = 10 mu mathrm{A}$. The corresponding Hall plateaus are represented by the depicted longitudinal Rxx and Hall resistance RH curves, however, the Hall resistance RH’s characteristics are not complete. The odd number’s plateau index i was not observed. At $i = 2$ and $i = 4$, the longitudinal resistance characteristic Rxx approaches zero. Comparing the measurement results at 1.5 K (theoretical) and 4.2 K, it was discovered that there were deviations of $1.5 mathrm{m}Omega / Omega$ ($i = 2$) and $5 mathrm{m}Omega / Omega (i =4)$, respectively. The effect of rising temperature is a factor contributing to the quantum Hall effect’s incompleteness. We can identify abnormalities while measuring or determining the time period of operation from the characteristics of the measured results. Moreover, the external magnetic field is measured around the Quantum Hall Resistance (QHR) standard system. It will be able to securely evaluate the effects of magnetic field generation produced by the superconducting magnet in the cryostat system. From the results, there is a small external magnetic field around the QHR system.","PeriodicalId":340768,"journal":{"name":"2023 20th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122326060","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}
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