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High-Speed and High-Accuracy Three-Dimensional Object Profiling Using FMCW Optical Ranging System by Continuous Scanning of Laser Beam

High-Speed and High-Accuracy Three-Dimensional Object Profiling Using FMCW Optical Ranging System by Continuous Scanning of Laser Beam

通常価格 ¥440 JPY
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カテゴリ: 部門大会

論文No: SS1-8

グループ名: 【C】2021年電気学会電子・情報・システム部門大会

発行日: 2021/09/08

タイトル(英語): High-Speed and High-Accuracy Three-Dimensional Object Profiling Using FMCW Optical Ranging System by Continuous Scanning of Laser Beam

著者名: 小西 朋春(金沢大学),飯山 宏一(金沢大学)

著者名(英語): Tomoharu Konishi (Kanazawa University),Koichi Iiyama (Kanazawa University)

キーワード: FMCW法|3次元物体形状計測|光イメージング|光距離計測|面発光レーザー|Frequency modulated continuous wave|3D object profiling|Optical imaging|Optical ranging system|Vertical cavity surface emitting laser

要約(日本語): High-speed and high-accuracy three-dimensional object profiling is realized by using the frequency modulated continuous wave optical ranging system and a two-dimensional Galvano scanner. The Galvano scanner for laser beam scan is continuously scanned to avoid the response delay of the Galvano scanner. In addition, blurring of the three-dimensional object profiling result caused by the change of the illuminating position while data acquisition, is canceled by changing the symmetricity of the triangular modulation waveform of the laser injection current. As a result, the profiling time is 43 times faster than the conventional system using a step-scanned Galvano scanner. 

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