Micromechatronics

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

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Issue 207 Pages 1-
Issue 206 Pages 2-

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Volume 56, Issue 207

Displaying 1-17 of 17 articles from this issue

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[title in Japanese]

Article type: Cover
2012 Volume 56 Issue 207 Pages Cover1-
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_Cover1

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[title in Japanese]

Article type: Cover
2012 Volume 56 Issue 207 Pages Cover2-
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_Cover2

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Micro Fabry-Perot interferometer for visible light range fabricated by anodic bonding of SOI wafer

Tetsuji DOHI, Kiyoshi MATSUMOTO, Isao SHIMOYAMA

Article type: Article
2012 Volume 56 Issue 207 Pages 1-9
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_1

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This paper reports on a micro Fabry-Perot interferometer (MFPI) fabricated by anodic bonding of an SOI wafer. Since we design optical and mechanical characteristics of the MFPI by using matrix method, our MFPI can be used in the wavelength ranging from visible light to near-infrared. The movable capacitor with the half mirror of the MFPI was fabricated on the SOI wafer, and this SOI wafer was bonded to the pyrex glass substrate by anodic bonding. The MFPI fabricated in this study can be used in wide wavelength ranging from 550 nm to 950 nm. It transmits the light from 10 to 80 % in that range. The gap of MFPI mirrors calculated by the peak wavelength of transmitting light was change from 1580 nm to 1270 nm by applying the voltage from 0 to 180 V.

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Design of the tunable micro optical filter for measuring spectroscopic image

Tetsuji DOHI, Kiyoshi MATSUMOTO, Isao SHIMOYAMA

Article type: Article
2012 Volume 56 Issue 207 Pages 10-21
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_10

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This paper reports on a tunable micro optical filter for measuring spectral endoscope which can acquire spectroscopic images of a target. We use a micro Fabry-Perot Interferometer (MFPI) as the tunable optical filter. The MFPI with the Si/Si_3N_4/Si multi-layer mirrors and the MFPI prototype were designed and fabricated. This MFPI can be used in the wavelength ranging from 450 nm to 1000 nm. The RGB image of the butterfly was taken by the spectral endoscope, which consists of the MFPI prototype, a CCD, and lenses. The image according to the peak wavelength was also acquired. Thus, we demonstrate the efficiency of the MFPI for the spectral endoscope.

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Development of integral structure type precise linier motion positioning stage with displacement expansion mechanism

Hirotaka TSUTSUMI, Teppei WAKATSUKI, Yasuo YOSHIMURA

Article type: Article
2012 Volume 56 Issue 207 Pages 22-31
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_22

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A piezoelectric actuator is used as a positioning device which produces large force, high speed and high response. In practical use for a micro-positioning system, however, force support and displacement expansion mechanism is required to obtain precise output displacement. This research deals with the integrated-type linear positioning stage having displacement expansion mechanism. This stage consists of 2 piezoelectric actuators, a base stage body, two kinds of hinges, and displacement expansion mechanism. This stage is designed to be driven in the X direction, while two piezoelectric actuators are actuated synchronistically. The basic property of positioning stage and the integral controlling system are described in this report.

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Development of the high-frequency mechanical watch

Hisashi FUJIEDA

Article type: Article
2012 Volume 56 Issue 207 Pages 32-35
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_32

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We developed a mechanical watch with high frequency, 5 Hertz movement for the first time in about 40 years (generally mechanical watches have from 2.5 to 4 Hertz movements). It is a fundamental method to increase frequency for improving accuracy, however there are some technical problems to achieve higher frequency. We solved them with UV-LIGA technology and a newly developed material.

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Development of the watch with pedometer function

Satoshi SAKAI, Keisuke TSUBATA

Article type: Article
2012 Volume 56 Issue 207 Pages 36-42
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_36

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We developed a new watch with pedometer function (Cal.S670). The watch comprises a three-axis acceleration sensor to count steps. Then, we can detect a touchdown impact (landing impact) to occur in the direction that is different from a run in a walk. Also we developed new algorithm to count steps from data of three-axis acceleration sensor. In this way, we can count steps during not only running, walking, but also changing position of the watch. Finally, we were able to achieve the high-precision detection by optimizing a detection condition.

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Development of chronograph reset mechanism in analog quarts watch

Kei HIRANO, Masayuki KAWATA, Tamotsu ONO

Article type: Article
2012 Volume 56 Issue 207 Pages 43-48
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_43

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We developed an analog quartz-type chronograph watch with new chronograph reset mechanism. This mechanism enabled no adjustment of reset and reduction of the number of the chronograph parts. In addition, by the adoption of the asymmetry heart cam, it became hard to be affected by the coefficient of friction and was able to simplify heart cam production.

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 49-58
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_49

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 59-60
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_59

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 61-74
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_61

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 75-79
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_75

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Eco-Drive RING

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 84-88
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_84

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 89-91
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_89

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[title in Japanese]

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 92-94
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_92

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Brooks Brothers in BASELWORLD 2012

[in Japanese]

Article type: Article
2012 Volume 56 Issue 207 Pages 95-100
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_95

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[title in Japanese]

Article type: Appendix
2012 Volume 56 Issue 207 Pages 108-
Published: December 10, 2012
Released on J-STAGE: November 09, 2017

DOIhttps://doi.org/10.20805/micromechatronics.56.207_108_2

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