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ワイドストライプ形半導体レーザを用いた流れの計測


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Title: ワイドストライプ形半導体レーザを用いた流れの計測
Other Titles: Flow Velocimeter with Wide-Stripe Semiconductor Laser
Authors: 植木, 弘信 / 石田, 正弘 / 雨森, 雅典
Authors (alternative): Ueki, Hironobu / Ishida, Masahiro / Amemori, Masanori
Issue Date: 25-Dec-1992
Publisher: 日本機械学会
Citation: 日本機械学會論文集. B編 58(556) p.3685-3689, 1992
Abstract: A semiconductor laser with a wide active stripe was utilized as the power source of a laser 2-focus velocimeter. The focus was expanded to about 0.2mm wide to form the two parallel focal planes. The backscattered light from seeding particles was detected by photodiodes, and the time-of-flight between two foci was counted by means of a digital clock. The flow velocity was measured in a circular jet stream, and the results were compared with those measured simultaneously by Pitot tube. After checking the accuracy of measurements, the blade-to-blade distribution of velocity and flow angle were measured at the exit of a centrifugal impeller to confirm the applicability of the semiconductor-L2F with band focus.
Keywords: Fluid Engineering / Flow Measurement / Semiconductor Laser / Wide Active Stripe / Laser 2-Focus Velocimeter
URI: http://hdl.handle.net/10069/6742
ISSN: 03875016
Type: Journal Article
Text Version: publisher
Appears in Collections:Articles in academic journal

Citable URI : http://hdl.handle.net/10069/6742

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