Committee |
Date Time |
Place |
Paper Title / Authors |
Abstract |
Paper # |
EMD |
2024-03-01 14:20 |
Chiba |
|
Observations of break arc discharge characteristics and arc behaviors of AgSnO2 contacts in DC inductive load circuits up to DC20V Reo Oikawa, Yuya Asari, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2023-42 |
The authors’ research group has continued a series of observations of break arc behaviors and arc duration measurements ... [more] |
EMD2023-42 pp.19-24 |
EMD |
2024-03-01 15:00 |
Chiba |
|
Effect of magnets on arc discharge at low DC voltage Yuki Yokohari, Ryo Watanabe, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2023-44 |
In this study, we conducted experiments using a device that opens electrical contacts at a constant speed. Previous stud... [more] |
EMD2023-44 pp.30-35 |
EMD |
2024-03-01 16:15 |
Chiba |
|
Automatic contact resistance measurement of electrical contacts operating in various atmospheres Tomoito Ito, Yuto Mukai, Kiyoshi Yoshida (NIT) EMD2023-47 |
The purpose of this report was to experiment to see how various atmospheres affect the contact resistance of electrical ... [more] |
EMD2023-47 pp.46-51 |
EMD |
2023-12-22 14:50 |
Tochigi |
Teikyo University |
Numerical Analysis of Hole Diameter Dependence of Airflow Distribution between Electrical Contacts with an Airflow Jet Hole Koki Kameyama, Naoki Kanda, Junya Sekikawa (Shizuoka Univ.) EMD2023-36 |
The authors proposed a method to shorten the duration of break arcs by ejecting airflow from the surface of an electrica... [more] |
EMD2023-36 pp.25-29 |
EMD |
2023-12-22 15:40 |
Tochigi |
Teikyo University |
Characteristics of Break Arcs Generated between Cu, Al and Fe Electrical Contacts in a 100-280VDC/10A Resistive Circuit Aoi Handa, Junya sekikawa (Shizuoka Univ.) EMD2023-38 |
Break arcs were generated using Cu, Al, and Fe as electrical contacts in the resistive load circuit with supply voltage ... [more] |
EMD2023-38 pp.35-40 |
EMD |
2023-03-03 15:45 |
Saitama |
NIT and Online (Primary: On-site, Secondary: Online) |
Break arc characteristics of AgSnO2 contacts in an inductive load circuit up to DC20V Shota Kosugi, Makoto Hasegawa (Chitose Inst. of Science and Technology) EMD2022-29 |
The authors’ research group has continued a series of observations of break arc behaviors and arc duration measurements ... [more] |
EMD2022-29 pp.46-51 |
EMD |
2023-03-03 16:00 |
Saitama |
NIT and Online (Primary: On-site, Secondary: Online) |
Various Characteristics of Arc Discharge Generated in DC Toggle Switches Masaya Harada, Hiroto Kanemoto, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2022-30 |
In this study, using a commercially available DC toggle switch, the same load conditions as in past experiments were use... [more] |
EMD2022-30 pp.52-57 |
EMD |
2023-03-03 16:55 |
Saitama |
NIT and Online (Primary: On-site, Secondary: Online) |
Automatic measurement system for contact resistance of electric contact
-- Improvement of the auto range -- Masato Fujisaki, Ayumu Hashizume, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2022-33 |
In this report, we improve a system that automatically sets the optimum input voltage range for each measurement (hereaf... [more] |
EMD2022-33 pp.70-75 |
EMD |
2023-03-03 17:10 |
Saitama |
NIT and Online (Primary: On-site, Secondary: Online) |
Effect of Lubricants on Electrical Characteristics of Sliding Contacts in Gold-plated Slip-ring System Naoya Chiba, Takuma Matsuzaki, Koichiro Sawa, Takahiro Ueno (NIT) EMD2022-34 |
An electric sliding contact mechanism is a means of transmitting power and signals between stationary and moving objects... [more] |
EMD2022-34 pp.76-81 |
EMM, BioX, ISEC, SITE, ICSS, HWS, IPSJ-CSEC, IPSJ-SPT [detail] |
2022-07-19 16:15 |
Online |
Online |
Security Assessment and Countermeasures for Magnetic Malfunction of Electromagnetic Relays Takumi Owada, Kazuki Tachibana, Tsutomu Matsumoto (YNU) ISEC2022-14 SITE2022-18 BioX2022-39 HWS2022-14 ICSS2022-22 EMM2022-22 |
Relays are used in many electrical and electronic devices, including switches and sensors. Some relays are electromagnet... [more] |
ISEC2022-14 SITE2022-18 BioX2022-39 HWS2022-14 ICSS2022-22 EMM2022-22 pp.40-45 |
EMD |
2022-03-04 14:40 |
Online |
Online |
Improvement and measurement of automatic contact resistance measurement system for electrical contacts Ryo Oyamada, Syun Kanaya, Kiyoshi Yoshida (NIT) EMD2021-19 |
In our laboratory, we made an automatic contact resistance measurement system for electrical contacts using LabVIEW. Ho... [more] |
EMD2021-19 pp.25-30 |
EMD |
2022-03-04 15:00 |
Online |
Online |
Effect of inductance and magnetic blowout on DC arc discharge when contacts opened Yuuto Waragai, Kiyoshi Yoshida, Koichiro Sawa (NIT) EMD2021-20 |
DC current switching has been getting important as DC grid systems and electrical vehicles have been more popular. As we... [more] |
EMD2021-20 pp.31-36 |
ED, CPM, LQE |
2021-11-26 14:55 |
Online |
Online |
High-breakdown-voltage Al0.36Ga0.64N-channel HFETs with a dual AlN/AlGaInN barrier layer Akiyoshi Inoue, Sakura Tanaka, Takashi Egawa, Makoto Miyoshi (NIT) ED2021-32 CPM2021-66 LQE2021-44 |
In this study, we fabricated and characterized heterojunction field-effect transistors (HFETs) based on an Al0.36Ga0.64N... [more] |
ED2021-32 CPM2021-66 LQE2021-44 pp.79-82 |
EMD |
2021-03-08 14:20 |
Online |
Online |
Continuous open and close test of contact resistance of electromagnetic contactor Yoshihiro Sudo, Kohei Chiba, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2020-32 |
In this study, the contact resistance when a small current was applied at DC5V, was automatically measured. In the expe... [more] |
EMD2020-32 pp.18-22 |
LQE, CPM, ED |
2020-11-26 13:30 |
Online |
Online |
High-breakdown-voltage AlGaN channel HFETs with selective-area regrowth ohmic contacts Akiyoshi Inoue, Hiroki Harada, Mizuki Yamanaka, Takashi Egawa, Makoto Miyoshi (NIT) ED2020-7 CPM2020-28 LQE2020-58 |
Al0.19Ga0.81N-channel metal-insulator-semiconductor (MIS) HFETs employing a quaternary AlGaInN barrier layer and a selec... [more] |
ED2020-7 CPM2020-28 LQE2020-58 pp.25-28 |
EMD |
2020-07-17 15:00 |
Hokkaido |
Chitose-Arcadia-Plaza |
Production of automatic measurement system for contact resistance and its measurement results
-- Contact resistance when switching 1 million times under small load condition -- Kiyoshi Yoshida, Koichiro Sawa (NIT), Kenji Suzuki (Fuji FA Comp. & Sys.) EMD2020-6 |
In this study, we constructed an automatic measurement system for the contact resistance of electrical contacts. This sy... [more] |
EMD2020-6 pp.17-22 |
EMD |
2020-03-06 16:05 |
Chiba |
CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Production of Automatic Contact Resistance Measurement System for Electrical Contacts Tatsuya Onodera, Sho Kashiwabara, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-69 |
In this study, we constructed an automatic measurement system for the contact resistance of electrical contacts. This sy... [more] |
EMD2019-69 pp.51-56 |
EMD |
2020-03-06 16:35 |
Chiba |
CHIBA Institute of Technology Tsudanuma Campus (Cancelled but technical report was issued) |
Influence of Magnetic Flux Density and Breaking Speed on Magnetic Blowout of DC Arc Discharge Hiroki Yamauchi, Hayato Watanabe, Koichiro Sawa, Kiyoshi Yoshida (NIT) EMD2019-71 |
The arc duration time ta and the arc energy Ea when a magnetic flux was applied to the electrical contact were measured.... [more] |
EMD2019-71 pp.61-64 |
EMD, R |
2020-02-14 14:35 |
Shizuoka |
|
Observations of break arc behaviors of AgSnO2 contacts in a DC inductive load under application of an external magnetic field Makoto Hasegawa, Seika Tokumitsu (Chitose Inst. of Science & Technology) R2019-56 EMD2019-56 |
When AgSnO2 contacts were operated to break an inductive DC load circuit up to 20V-17A with an applied external magnetic... [more] |
R2019-56 EMD2019-56 pp.13-16 |
EMD |
2020-01-17 15:35 |
Kanagawa |
Rental hall Shonan Hiratsuka |
Arc movement observation of DC inductive break arcs of AgSnO2 contacts up to 20V-17A under external magnetic field application Makoto Hasegawa, Seika Tokumitsu (Chitose Inst. of Sci.&Tech.) EMD2019-51 |
AgSnO2 contacts were operated to break an inductive DC load circuit of 14V-7A, 14V-12A, 20V-7A, or 20V-17A with an appli... [more] |
EMD2019-51 pp.17-21 |