Micromechatronics

Online ISSN : 2432-0358
Print ISSN : 1343-8565
ISSN-L : 1343-8565

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Volume 48, Issue 3

Displaying 1-12 of 12 articles from this issue

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[title in Japanese]

Article type: Cover
2004 Volume 48 Issue 3 Pages Cover1-
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_Cover1

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[title in Japanese]

Article type: Cover
2004 Volume 48 Issue 3 Pages Cover2-
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_Cover2

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Development of an Indoor Positioning Device Using Wireless Communication : Consideration of Electric Power Compensations

Tetsu IWASAKI, Tomohiro SUGIYAMA, Kazumi YOSHIDA, Masakazu ENOMOTO, Ke ...

Article type: Article
2004 Volume 48 Issue 3 Pages 1-12
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_1

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In this study an indoor positioning system available in factories or shipyards was developed using the Bluetooth technology. By evaluating the influence of metals, human bodies and human postures quantitatively and carrying out suitable compensation, position detection was able to be performed in the accuracy of ±2m.

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High-speed Turning of Micro-Parts

Takahiro SATOH, Naoki WAKABAYASHI, Hirotoshi ARAMAKI, Tokio KITAHARA

Article type: Article
2004 Volume 48 Issue 3 Pages 13-21
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_13

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In order to clarify the effect of high-speed turning for micro-parts, we have performed the experiments on turning of carbon steel (drill rod), free machining brass, pure aluminum and copper, using the micro-shaft of maximum rotating speed 20×10^4rpm. On the turning of drill rod surface roughness Ra in feed direction decreased from 300 to 50nm with increasing cutting speed 50 to 250m/min. On the other kinds of materials, Ra improved remarkably with increasing cutting speed. The validity of high-speed-turning at micro-parts production becomes clear from the experiments.

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Study on Automatic Power Generating System Using Self-Excited Rotation

Yoshitsugu KATSUKI, Yuji OHSAKI, Hiroshi HOSAKA, Ken SASAKI, Kiyoshi I ...

Article type: Article
2004 Volume 48 Issue 3 Pages 22-33
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_22

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An automatic electric power generator that utilizes self-excited rotation has been investigated as a power supply for information devices. By the approximate analysis with the dynamic model and the numerical simulation, the conditions that the self-exited rotation takes place are clarified. In order to create self-excited rotation, a system that increases the angular speed is suggested. When increasing the rotational speed, the motor is used as an actuator rather than a generator. The experimental results show that generating output increases from 10μW to 380μW by the system. The input voltage and time was optimized to reduce energy loss. A system that increases the rotational speed till self-excited rotation occurs in order to lessen the influence of the initial mass position and angular speed is proposed.

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Development of Sports Monitoring System

Hisao Nakamura, Tomoharu Tsuji

Article type: Article
2004 Volume 48 Issue 3 Pages 34-41
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_34

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In the sports monitoring system which measures a heart rate and displays the heart rate value on a watch, we have developed the new system in which the heart rate monitor unit and other system units can separately communicate with a wrist watch by using a short range radio communication. The system enables to use plural units including PC data communication simultaneously without any mutual interference.

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Development of the pulse rate measurement technology to reduce influence of motion

Tsukasa KOSUDA, Ichiro AOSHIMA

Article type: Article
2004 Volume 48 Issue 3 Pages 42-51
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_42

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The tool is expected to monitor the living body information without feeling strange in daily life. Although the pulse rate is the important information of the living body, it was difficult to measure pulse rate correctly during motion, because the pulse rate have much influenced of the body motion. We developed pulse rate measurement technology to reduce influence of motion by sensor and signal processing.

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Inverted Pendulum for Mechatronics Education

Ken SASAKI

Article type: Article
2004 Volume 48 Issue 3 Pages 52-58
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_52

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[title in Japanese]

[in Japanese]

Article type: Article
2004 Volume 48 Issue 3 Pages 59-73
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_59

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[title in Japanese]

[in Japanese]

Article type: Article
2004 Volume 48 Issue 3 Pages 74-75
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_74

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[title in Japanese]

[in Japanese]

Article type: Article
2004 Volume 48 Issue 3 Pages 76-78
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_76

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[title in Japanese]

Article type: Appendix
2004 Volume 48 Issue 3 Pages 81-
Published: September 10, 2004
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.48.3_81_2

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