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| language |
jpn
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| Title Transcription | イソウ シフト ディジタル ホログラフィー ヲ モチイタ カンナイ ヒョウメン ケイジョウ ケイソク ニ オケル エンスイ キョウ ノ ジク ズレ ニ ヨル ゴサ ノ ホセイ
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| Title Alternative (English) | Compensation of measurement error due to the positional misalignment of the cone-shaped mirror in the measurement of an inner surface profile of a pipe by phase-shifting digital holography
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| Author |
ADACHI, Toru
Department of Electronic and Control Systems Engineering, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Japan
YOKOTA, Masayuki
Department of Electronic and Control Systems Engineering, Faculty of Science and Engineering, Shimane University, 1060 Nishikawatsu-cho, Matsue 690-8504, Japan
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| Description | Phase-shifting digital holography is applied to a surface profilometry of an inner surface of a pipe. For the surface contouring of the inner wall, two wavelength method using an injection-current induced wavelength change of a laser diode is used. To illuminate the inner wall of the pipe, a cone-shaped mirror is set inside the pipe. A compensation method using a calculated optical path length in the experimental alignment is used to evaluate the inner shape of the pipe. The effectiveness of the compensation method has been experimentally investigated by shifting the cone-shaped mirror from the center of the pipe. To demonstrate an inspection of the pipe inner wall, the proposed method has been applied to detection of two seals pasted on the inner wall. Three-dimensional profile of the seals on the inner wall of the pipe can be evaluated using a simple image processing.
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| Description Alternative | 位相シフトディジタルホログラフィーを管内表面の3次元形状計測に適用した．管内壁面の等高線形成には，半導体レーザーへの注入電流の変化に伴う波長変化を利用する二波長法を用いた．なお，管内壁面の照明には円錐鏡を使用した．そして，実験配置において計算された光路長を用いる補正方法を使用して，管の内面形状を測定した．また，円錐鏡を管の中心からずらすことにより，補正方法の有効性を実験的に調べた．そして管内壁面の評価を行うため，管内壁面に貼った2つのシールの検出に提案手法を適用し，簡単な画像処理によりシールの3次元形状を計測した．
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| Subject | inner surface profile
phase-shifting
digital holography
two wavelength method
optical path length
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| Journal Title |
光学
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| Volume | 40
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| Issue | 12
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| Start Page | 641
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| End Page | 648
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| Published Date | 2011-12
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| Publisher | 日本光学会
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| Publisher Transcription | ニホン コウガク カイ
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| NII Type |
Journal Article
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| Format |
PDF
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| Relation | |
| Text Version |
著者版
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| OAI-PMH Set |
Faculty of Science and Engineering
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| Remark | フォトニクス分科会日本光学会誌アーカイブサイト https://annex.jsap.or.jp/photonics/kogaku/index.html
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