Search Results 1-20 of 356

  • Erosion sensor using time-resolved cavity ring-down spectroscopy for Hall thrusters

    Egawa Yusuke , Yamamoto Naoji , Yamaguchi Atsushi , Morita Taichi

    … A high-sensitivity sensor to measure titanium atom density based on time-resolved cavity ring-down spectroscopy (CRDS) was developed to monitor the wall erosion and predict the lifetime of Hall thrusters. … The minimum detection limit for the sensor was dependent on the discharge current oscillation in the Hall thruster. …

    Review of scientific instruments 91(113105), 1-8, 2020-11-06


  • Development of a small-sized 6-axis force/torque sensor for robot fingers  [in Japanese]

    HIRANO Nanami , Tomo Tito Pradhono , Schmitz Alexander , Funabashi Satoshi , SUGANO Shigeki

    … In this study, we propose a compact 6-axis force sensor for robot fingers. … The size of this sensor is close to that of a human finger, and the output is a digital value, so the sensor needs no extra electronics and less wiring. … This sensor uses Hall effect sensor chips. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020(0), 2A2-N09, 2020


  • Development of sensor device for measuring axial length of McKibben Pneumatic Actuator with soft material  [in Japanese]

    MINAMII Wataru , NAKANISHI Daisuke , NANIWA Keisuyke , SUGIMOTO Yasuhiro , OSUKA Kouichi

    … The device consists of soft material, hall sensor, and magnet. … A hall sensor and magnet are mounted outside and inside the donut, respectively. … The bigger the device transforms, the closer the distance between the hall sensor and magnet is. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2020(0), 1P2-H11, 2020



    TSUCHIYAMA Miki , WU Qingxu , SUZUKI Jumpei , FUJITA Masafumi

    <p> 環境ストレスに対する汽水性二枚貝ヤマトシジミの分子・個体レベルの応答を包括的に理解することを目指し,本研究ではホール素子センサを用いた貝殻の開閉運動の連続測定とその評価方法を検討した.人工海水で飼育したヤマトシジミを用いて実験を行ったところ,ホール素子センサと磁石間の距離と電圧の関係式を個体ごとに準備することにより,開殻距離を求めることができた.ヤマトシジミを都市下水(5倍希釈 …

    Journal of Japan Society of Civil Engineers, Ser. B2 (Coastal Engineering) 76(2), I_1051-I_1055, 2020


  • Development of Novel Electrostatic Field Strength Sensor Using Air Motor  [in Japanese]

    Osada Yuki , Suzuki Teruo , Choi Kwangseok

    … <p>The development and fundamental study of an electrostatic field strength sensor (novel sensor) with an air motor is investigated on a laboratory scale in this paper. … This novel sensor was developed in order to measure the electrostatic field of charged dust clouds formed during the processing of large amounts of powder. …

    Journal of the Society of Powder Technology, Japan 57(6), 311-316, 2020


  • Force sensor accuracy using redundant outputs.  [in Japanese]

    Nakamura Shizuki , Hayami Ryutaro , Matsuda Shiori , Higa Masaru

    … <p>力の計測装置としては、歪みゲージを用いたロードセルが広く使われているが、我々は磁力によるHall 効果を利用したHall Effect Sensorを使用し、3次元の力を計測するシステムの構築を目的とする。 …

    Transactions of Japanese Society for Medical and Biological Engineering Annual58(Abstract), 465-465, 2020


  • Coreless Current Sensor Enabling DC and High Frequency Measurement  [in Japanese]

    Noguchi N. , Ogawa K. , Terao M. , Kobako S. , Takenaka K.

    … <p>  We have been developing a current sensor that has multiple magnetic sensors and a Rogowski sensor. … Our current sensor has magnetic sensors that measure DC to low frequency currents and low frequency to a few megahertz currents with a Rogowski sensor. …

    Transaction of the Magnetics Society of Japan Special Issues 4(1), 27-31, 2020


  • Output-Current Measurement of a PWM Inverter with a Tiny PCB Rogowski Sensor Integrated into an IGBT Module

    Hasegawa Kazunori , Sho Shun , Tsukuda Masanori , Omura Ichiro , Ichiki Mao , Kato Tohru

    … Existing current sensors like the Hall sensor and the current transformer are a constraint to reduce the volume and cost of the inverter. … This paper proposes an output-current measurement method of a PWM inverter using a tiny PCB sensor that is based on the so-called Rogowski coil and can be integrated into an IGBT module. …

    2019 IEEE Energy Conversion Congress and Exposition (ECCE), 2019-11-28


  • High mobility sputtered InSb film by blue laser diode annealing

    Koswaththage C.J. , Higashizako T. , Okada T. , Sadoh T. , Furuta M. , Bae B.S. , Noguchi T.

    … High electron Hall mobility of 1,050 cm^2 /(Vs) was obtained without degrading under glass. … New device applications such as magnetic or infrared sensor system with poly Si TFTs are expected not only on glass but also on flexible panel such as on plastic sheet. …

    AIP Advances 9(4), 045009-1-045009-5, 2019-04-10


  • Research and Development of Compact High Sensitivity Smart Force Sensor by Electromagnetic Material, MEMS  [in Japanese]

    YAN Yangyi , KURITA Hiroki , ONO Takahito , INOMATA Naoki , FURUYA Yasubumi , NARITA Fumio

    … <p>This study proposes a new resonant magnetic sensor using a permalloy magnetic field concentrator. … The sensitivity of this sensor is expected to reach 100 times of the Hall sensor under the same volume (1cm x 1cm x 0.5mm). … Furthermore, the coil-less feature can reduce the diameter to 1/8 of the current torque sensor. …

    The Proceedings of the Materials and Mechanics Conference 2019(0), OS0231, 2019


  • 冗長計測値を用いた力計測の精度向上  [in Japanese]

    Higa Masaru , 速水 隆太郎

    … 本研究では、磁力によるHall 効果を利用したHall Effect Sensorを使用し、3次元の力を計測するシステムの構築を目的とする。 … 3次元デジタルHall Effect Sensorと永久磁石のペアを適切な位置に配置し、3ペア方向を変えて配置した3軸力センサを設計した。 …

    Transactions of Japanese Society for Medical and Biological Engineering Annual57(Abstract), S232_1-S232_1, 2019


  • Tsukuba challenge simulator based on Unreal Engine 4  [in Japanese]

    YOSHIDA Tomoaki , IRIE Kiyoshi , HARA Yoshitaka , NISHIMURA Takeshi

    … The simulator simulates a area nearby Tsukuba city hall, wheeled mobile robot with a velodyne VLP-16 lidar and a inertial sensor. …

    The Proceedings of JSME annual Conference on Robotics and Mechatronics (Robomec) 2019(0), 1P1-S09, 2019


  • Development of power assist suit using McKibben type artificial muscle with outer diameter sensor  [in Japanese]

    YANO Takuya , FUJIMOTO Shinsaku , Akagi Tetsuya , KOBAYASHI Wataru

    The Proceedings of Conference of Chugoku-Shikoku Branch 2019.57(0), 1113, 2019


  • Easy Hall position sensor fault-tolerant control algorithm for brushless DC drives

    Lv Degang , Li Song , Du Zeyuan

    … <p>This paper focuses on Hall-effect sensor fault detection and compensation for brushless dc (BLDC) drives. … A methodology based on the Hall position vector phase differences is investigated to detect Hall fault. … After that, Hall signal noise is analyzed between sampling periods, and a correction machine to filter Hall noise and compensate the filter delay is proposed. …

    IEICE Electronics Express 16(6), 20181004-20181004, 2019


  • Consideration of Introduction of a Correlated Double Samping to a Two-Dimensional Magnetic Sensor and Its Noise Suppresion  [in Japanese]

    Kimura Takayuki , Yamane Kouhei , Masuzawa Toru

    … The two-dimensional integrated magnetic sensor used for the consideration of CDS was composed of a 64×64 array of Hall sensors. … The size of a Hall element was 2.7×2.7µm<sup>2</sup> …

    IEEJ Transactions on Sensors and Micromachines 139(3), 61-62, 2019


  • 4-Contact structure of vertical-type CMOS Hall device for 3-D magnetic sensor

    Oh Sein , Hwang Dong-young , Chae Hyungil

    … <p>This study presents a new structure of vertical-type CMOS Hall devices to detect 3-D magnetic field in various types of applications or devices with high sensitivity. …

    IEICE Electronics Express 16(4), 20180854-20180854, 2019


  • Development of Educational Magnetic Levitation System with a Hall element Displacement Sensor: Construction of Current Sensorless Voltage Driven Control System Using Kalman Filter  [in Japanese]

    Asato Kentaro , Nagado Tsutomu

    … <p>In this study, we developed a current sensorless voltage driven magnetic levitation system with a Hall element displacement sensor using Kalman filter. … However, the use of the displacement sensor for a voltage driven magnetic levitation system causes two problems, namely compensation for measurement error and correction of Hall element output voltages in the sensor. …

    IEEJ Transactions on Industry Applications 139(2), 136-142, 2019


  • Evaluation of Simulated and Measured Results of Stator Magnetic Flux in Simulated Induction Motor  [in Japanese]

    松尾 駿宏 , 福本 尚生 , 古川 達也

    電気学会研究会資料. IM = The papers of technical meeting on instrumentation and measurement, IEE Japan 2018(31-39), 1-6, 2018-11-16

  • Distance dependence of magnetic field generated by a current in a wire measured by InSb and InAs Hall elements  [in Japanese]

    笠原 健司 , 眞砂 卓史 , 柴﨑 一郎

    「センサ・マイクロマシンと応用システム」シンポジウム論文集 電気学会センサ・マイクロマシン部門 [編] 35, 4p, 2018-10-30

  • Handheld magnetic probe with permanent magnet and Hall sensor for identifying sentinel lymph nodes in breast cancer patients

    Masaki Sekino , Akihiro Kuwahata , Tetsu Ookubo , Mikio Shiozawa , Kaichi Ohashi , Miki Kaneko , Itsuro Saito , Yusuke Inoue , Hiroyuki Ohsaki , Hiroyuki Takei , Moriaki Kusakabe

    Scientific Reports 8(1195), 1-9, 2018-01-19


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