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14 results on '"Sakabe, Toshiya"'

3. Journal of JSEE

Author

SAKABE, Toshiya, primary, FUKUDA, Kazuhiro, additional, AMANO, Yuji, additional, and MICHISHITA, Takahiro, additional

Published
2006
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5. Journal of JSEE

Author

FUJITA, Naoyuki, primary, SAKABE, Toshiya, additional, KOSHIBA, Takashi, additional, and ISHITOBI, Manabu, additional

Published
2006
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8. Measurements of Flow Velocity and Temperature Using Laser Photothermal Effect with a Multiple Beam Interferometer

Author

OSAKA ELECTRO-COMMUNICATION UNIV (JAPAN) DEPT OF MANAGEMENT ENGINEERING, Nakatani, Noboru, Oshio, Takanori, Suzuki, Norihito, Sakabe, Toshiya, OSAKA ELECTRO-COMMUNICATION UNIV (JAPAN) DEPT OF MANAGEMENT ENGINEERING, Nakatani, Noboru, Oshio, Takanori, Suzuki, Norihito, and Sakabe, Toshiya

Abstract

This paper describes measurements of flow velocity and temperature using photothermal effect. We developed a multiple beam interferometer for detecting small phase variation caused by photo-thermal effect. The operating point is set on the maximum inclination of fringe intensity curve by the use of lead zircorate titanate (PIT) piezoelectric ceramics. The influence of the walk off effect on phase measurement is eliminated by the use of laser beam of small diameter. Using jet of air mixed with ethylene gas, it is demonstrated that this method is a useful tool to measure flow velocity and temperature. (Author)

Published
1992

12. Optical fiber heterodyne interferometer probe free from external disturbance.

Author

Nakatani, Noboru, Izumi, Takao, Asano, Shin, Yamada, Tomoharu, and Sakabe, Toshiya

Subjects
INTERFEROMETERS, ELECTRONIC probes, HETERODYNING (Electronics)
Abstract

A fiber heterodyne interferometer probe free from external disturbance, which can measure small displacement of an object as a pressure transducer or a vibrational object, is described. The phase fluctuation in the fiber due to external disturbance is excluded using a reference beat signal of light beams from a reflection mirror on a graded index rod lens. A graded index-type multimode fiber connected to one end of a single-mode fiber by arc fusion splicing is used to improve acceptance of the light. The characteristics of the fiber probe are also described. [ABSTRACT FROM AUTHOR]

Published
1987
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