著者
大西 公平 斉藤 佑貴 福島 聡 松永 卓也 野崎 貴裕
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.25, no.1, pp.9-16, 2017 (Released:2017-05-24)
参考文献数
13
被引用文献数
1 1

Real haptics has been a unsolved problem since its starting in 1940's. After many R&Ds including the early works in US and other countries, the bilateral control designed in acceleration space solves this issue. The quality of the touching and tactile sensation is heavily depends on transperancy between master side and slave side. The robust motion control which is equal to the acceleration control gives high transperancy. The real haptics is now key concept in 21st century where QOL should be the basis of the society. The various examples are also shown.
著者
津野田 亘 土方 亘 進士 忠彦
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.23, no.1, pp.151-156, 2015 (Released:2015-05-31)
参考文献数
10

In order to avoid the drive line infection of implantable devices and the surgical treatment for battery replacement, an intravascular micro turbine generator using blood flow, has been proposed and developed. The micro generator consisting of a micro turbine, a magnetic fluid (MF) seal, a stent, and an electrical generator is inserted by catheter into a descending aorta, which is able to reduce the invasiveness to patients. The experimental results using a prototype generator placed in a mock circuit loop showed that the resisting pressure of the MF seal was more than 25 kPa at 2,000 rpm and the generated power was 0.12 mW under a pulsatile flow condition.
著者
北川 亘 竹下 隆晴
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.25, no.3, pp.319-324, 2017 (Released:2017-10-23)
参考文献数
7

This paper presents the principle, characteristics and its analysis for bone conduction speaker. Bone conduction speaker has used under the sound noise, openable ear environment or by impaired hearing people because it is able to send the sound vibration directly to ear through the bone. In this article, introduce the 2 type of bone conduction speaker, then it is mentioned its analysis and results.
著者
岡本 丈夫 佐々木 実 伊藤 聡 竹田 幸市 Muhammad Ilhamdi Rusydi
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.22, no.2, pp.312-317, 2014 (Released:2014-10-06)
参考文献数
13
被引用文献数
3

Currently, there are many systems to support people with disability in their day to day activities. In this research, a robot arm system was designed, developed and controlled by use of an EOG (ElectroOculography) signal generated by the eye movement. The first part of the research was to establish the relationship between gaze position and EOG signal. Using Helmert transform method, the gaze position is estimated. The average error between real gaze position and estimated gaze position was ±4 cm. To recognize blink through EOG signal, Bell phenomenon was used. The blink recognition (voluntary and involuntary) experiment includes three occupants. The overall success rate of recognition of their blinks was more than 90%. Using this system long will make operators tired and results in erroneous experimental results. Thus, the switch from “control on” to “control off” was introduced in this system. The switch is activated when voluntary blink is detected. This will allow the system to improve the controllability.
著者
山下 知久 小方 正文 長嶋 賢
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.24, no.4, pp.293-298, 2016 (Released:2017-05-10)
参考文献数
11

The flywheel energy storage systems (FESS) can be stabilized the fluctuation of the output of the solar photovoltaic power generation system. FESS has been developed as a joint project of five enterprises subsidized by the New Energy and Industrial Technology Development Organization (NEDO). Key technology of FESS is the high temperature superconducting magnetic bearing (SMB). It consists of high temperature superconducting coils for its stator and high temperature superconducting bulks for its rotor. The FESS demonstration machine was reinstalled in the power plant, and the examination of the charge/discharge with solar photovoltaic power by the FESS demonstration machine was operated.
著者
野口 俊介 鈴木 憲吏 百目鬼 英雄
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.24, no.3, pp.210-215, 2016 (Released:2016-12-21)
参考文献数
11

A square wave excitation is the simplest method of brushless DC motor drive, but it has part inferior in terms of efficiency and vibration noise. However, the efficiency can be clearly improved by extending excitation angle and advancing current phase angle, especially the 150 degree excitation leads maximum efficiency. And the 150 degree excitation has possibility of making vibration noise characteristic improve because it leads losses decrease. In this paper, we measure the motor vibration noise characteristics in 150 degree excitation, and inspect degree of improvement of the characteristics experimentally.
著者
碓井 茂夫 野村 直樹 熊谷 光 関根 浩史
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.25, no.4, pp.383-389, 2017 (Released:2018-01-30)
参考文献数
3
被引用文献数
2

SUBARU has developed EyeSight, which has Autonomous Emergency Braking (AEB), “Pre-Collision Braking System”. The concept is to minimize collision damage or if conditions allow, prevent the collision. Through a trial-and-error process, SUBARU has, and continues to enhance the performance of Pre-Collision Braking System. The latest Pre-Collision Braking System was refined to two points. The first is to hasten the reaction to crossing pedestrians coming out from behind obstacles to heighten the speed reduction effect. The other point is to improve the reaction to night-time pedestrians. The effectiveness has been raised by suppressing the drop in the recognition performance caused by peripheral darkness or the color of pedestrians' clothes. These improvements will offer a high level of safety. This report also describes details of traffic accident data, and comparing results of “with EyeSight” and “without EyeSight”.
著者
米盛 弘信 丸山 諒
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.23, no.1, pp.213-218, 2015 (Released:2015-05-31)
参考文献数
6

This paper discusses high frequency acoustic noise generated by an IH cooker. Mechanism of high frequency acoustic noise generation is clarified by the experimental study. Recently, influence of the electromagnetic wave on the human body is worried. The symptoms; user of home electronics appliances feels; are headache and nausea. There is a report that some users who are using IH cooking heater also feel these symptoms. We have discovered that the high frequency acoustic noise, which is generated from an IH cooker, indicates strong-level sound pressure. High frequency strong acoustic noise must not be ignored, because its danger on our health is reported scientifically and medical standpoints. Then, it becomes necessary to examine the suppressing method of high frequency acoustic noise. In this paper, generating mechanism of the high frequency (20 kHz ∼) acoustic noise is made clarify by the experiments. Further, we have experimentally cleared that the lid of a pan has important effect on the suppression of the high frequency acoustic noise.
著者
菅野 勉
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.22, no.3, pp.348-353, 2014

This paper describes a basic concept of thermoelectric tubes. Construction of thermoelectric tubes has been done by making use of the off-diagonal thermoelectric effect, which is one of the direct energy conversion processes from heat into electricity. Here we also present a fabrication process and the current status of a feasibility study at a garbage incineration plant in Kyoto.
著者
茶位 祐樹 山本 達也 金野 泰之 川原 翔太 卜 穎剛 水野 勉 山口 豊 狩野 知義
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.26, no.2, pp.332-337, 2018 (Released:2018-08-23)
参考文献数
13

In this paper, the results of examining the number of strands for high efficiency and low heat generation of litz wire used for transformer of LLC resonant converter are described. Converter used for switching power supplies are required to be smaller and more efficient. To reduce the size of the converter, examinations have been made by increasing the frequency of the driving frequency. However, due to the high frequency, heat generation in the winding increase due to an increase in AC resistance in the transformer, which is one of the programs of high frequency. In view of this, we study reduction in heat generation by making the wire diameter of the winding constant and changing the number of strands. As a results, it is possible to improve efficiency of the LLC converter by 0.3 % and suppress heat generation of the transformer at 37 °C.
著者
久保山 敬介 王 鋒 松本 浩樹 中沢 信明
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.21, no.2, pp.140-145, 2013 (Released:2014-02-25)
参考文献数
11
被引用文献数
1

This paper reports a novel system that real-timely detects the respiration and the heartbeat during sleep for the purpose of early diagnosis of Sleep Apnea Syndromes. Real-time discrimination of the signal components related to the respiration and the heartbeat was realized using the Independent Component Analysis from the observed signals of PVDF films, which are placed on the bed under the bed sheet. Body movement is taken into consideration in order to prevent the system from divergence and to improve the discrimination accuracy. Efficacy of the system is testified through experiments.
著者
大野 勇輝 新口 昇 平田 勝弘 森元 瑛樹
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.23, no.1, pp.23-28, 2015 (Released:2015-05-31)
参考文献数
17
被引用文献数
2 2

We propose a novel magnetic gear with a high torque density and a huge gear ratio despite the small number of magnet poles. This magnetic gear combines a magnetic flux harmonics gear with a magnetic paradox planetary gear by replacing all planetary gears with steel pole pieces. Its structure and operating principle are described, and the effectiveness of the proposed gear is verified by 3-D finite element analysis.
著者
アラブシャヒ サイエド アリレザ 江 鐘偉 渡辺 哲陽
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.14, no.3, pp.333-338, 2006-09-10
被引用文献数
1

The purpose of this report is to introduce and discuss about the design parameters for a segment of a tactile sensor which will be used to read one dot of a braille alphabet. A single segment of a tactile sensor, consisting of a piezoelectric (PVDF) film sandwiched between two elastic materials, is designed. The design parameters, regarding the geometry and Young's modulus of the sensor are introduced. Simulations are used to investigate the influence of the design parameter on the sensor output, and to show the design criterion in order to obtain enough large sensor output. The results show that 1) for obtaining enough large sensor output, the layer, which is closer to the contact point with the dot of a Braille alphabet, should be "thinner" than and have a "similar hardness" to the other layer, 2) the output of sensor is mostly dependent on the bending effect near the PVDF layer and the Clamped structure can encourage more bending.
著者
武居 直行
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.25, no.1, pp.24-27, 2017 (Released:2017-05-24)
参考文献数
20

In this article, the author introduces two aquatic robots being developed in the author's laboratory: a miniature aquatic robot propelled by resonance of elastic plate and MINAMO (Multidirectional INtuitive Aquatic MObility). The former is a robot including a vibrating motor in the body shell and having an elastic plate fixed on the outer as a fin. The latter is a personal vehicle on water that realizes the straight and whirl movement by the control of the rider weight shifting.
著者
三浦 大知 河合 亮典 卜 穎剛 水野 勉 丸山 利喜 寺島 智樹
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.26, no.1, pp.133-138, 2018-05-30

<p> Linear DC motors often fit the drive field of which you request single stroke fast response below the 100 mm in particular. It is necessary to make the servo gain increased to drive LDM by fast-response. But displacement of LDM is easy to oscillate in increased gain. Amount of displacement is increase by pitching of LDM. It is desirable to install the displacement detection sensor at a position not affected by pitching behavior. This paper introduces the displacement detection position not affected by pitching.</p>
著者
池俣 吉人 佐野 明人
出版者
日本AEM学会
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.25, no.1, pp.2-8, 2017 (Released:2017-05-24)
参考文献数
52

A passive walker can walk down shallow slope with no energy source other than gravity. This motion is very attractive because its gait is really natural and ideal. Moreover, the walker can exhibit a stable limit cycle. Dynamics of passive walking is very interesting target and important for understanding human locomotion and developing the biped robots. In this paper, we introduce principles and applications of passive walking.
著者
中川 将嘉 米盛 弘信
出版者
The Japan Society of Applied Electromagnetics and Mechanics
雑誌
日本AEM学会誌 (ISSN:09194452)
巻号頁・発行日
vol.26, no.1, pp.89-94, 2018 (Released:2018-05-30)
参考文献数
7

This paper describes the effect of power supply noise on the acoustic noise and pan vibration when making use of the IH (Induction Heating) cooker. Recently, due to the spread of power electronics device, noise superimposed on the AC power supply is a problem. It has been reported that the acoustic noise provides discomfort feeling when using the IH cooker. Other studies have concluded that the vibration of a pan due to the induction heating is the noise source. So, we started our study on the noise from a pan when making use the IH cooker. Furthermore, we clarify the influence of power source noise on the acoustic noise and pan’s vibration. We made an experiment to clarify this influence. As a result, we clarified that power source noise has influenced acoustic noise and pan’s vibration.