Three-Dimensional Flow Measurement by Digital Holographic Particle Image Velocimetry with Spatio-Temporal Derivative Method (Evaluation of the Measurement Accuracy by Numerical Simulation)

• YAMAGUCHI Takahiro

  Seiko Epson Corp.

• MURATA Shigeru

  Department of Mechanical and System Engineering, Kyoto Institute of Technology

• MORIHARA Takafumi

  Seiko Instruments Inc.

書誌事項

タイトル別名

• (Evaluation of the Measurement Accuracy by Numerical Simulation)

抄録

In this paper, we present a digital holographic particle image velocimetry (DHPIV) technique with a spatio-temporal derivative method for velocity measurement in 3D space and the results of evaluating on its measurement accuracy. In this technique, hologram patterns are observed as digital images using an electronic camera, such as CCD or CMOS, and image reconstruction is carried out on a personal computer. Since an in-line observation system is utilized in conventional digital holography, a numerically reconstructed image is considerably enlarged in the depth direction and its depth resolution is extremely low; hence, the measurement accuracy in the depth direction is inaccurate in a digital holographic measurement. To overcome this difficulty, we apply a spatio-temporal derivative method to this technique for the detection of particle displacement along the z-axis. In a numerical simulation, measurement accuracy is evaluated for a multi particle model and a cubic cavity flow model. Furthermore, we examine the effect of noise on displacement measurement accuracy for numerically constructed noisy hologram patterns.

収録刊行物

• JSME International Journal Series B Fluids and Thermal Engineering

  JSME International Journal Series B Fluids and Thermal Engineering 49 (4), 1133-1140, 2006

  一般社団法人 日本機械学会

キーワード

• Flow Measurements
• Three-Dimensional Flow
• Digital Image Processing
• Digital Holography
• PIV
• Spatio-Temporal Derivative Method
• Measurement Accuracy
• Depth Displacement

詳細情報

• CRID: 1390001204676397440
• NII論文ID: 110004850813
• NII書誌ID: AA10888815
• DOI: 10.1299/jsmeb.49.1133
• ISSN: 13475371
• ISSN: 13408054
• NDL書誌ID: 8535907
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8535907
• Web Site: http://www.jstage.jst.go.jp/article/jsmeb/49/4/49_4_1133/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可