Abstract

The use of projection moire topographical methods to measure water waves is described. The advantages of the optical method are emphasized, and the practical importance of such measurement is discussed.

© 1990 Optical Society of America

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References

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  1. H. Takasaki, “Moire Topography,” Appl. Opt. 9, 1467–1472 (1970).
    [CrossRef] [PubMed]
  2. D. M. Meadows, W. O. Johnson, J. B. Allen, “Generation of Surface Contours by Moire Patterns,” Appl. Opt. 9, 942–947 (1970).
    [CrossRef] [PubMed]
  3. L. Pirodda, “Shadow and Projection Moire Techniques for Absolute or Relative Mapping of Surface Shapes,” Opt. Eng. 24, 640–649 (1982).
  4. M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).
  5. A. Livnat, G. Erez, O. Kafri, “Hills and Valleys Analysis in Optical Mapping and its Application to Moire Contouring,” Appl. Opt. 19, 3396–3400 (1980).
    [CrossRef] [PubMed]
  6. G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
    [CrossRef]
  7. D. G. Owen, I. A. Padilla-Perez, “An Experimental Investigation of Wave Interaction Effects Involving Groups of Large Diameter Cylinders,” in Proceedings, Seventh International Conference, OMAE, Houston (1988).
  8. R. E. Taylor, S. M. Hung, “Frequency Domain Analysis of Upwelling in Blocked Structures,” SERC Programme of Research into Dynamics of Compliant Structures, Report (1986).

1984 (1)

G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
[CrossRef]

1982 (1)

L. Pirodda, “Shadow and Projection Moire Techniques for Absolute or Relative Mapping of Surface Shapes,” Opt. Eng. 24, 640–649 (1982).

1980 (1)

1970 (2)

Allen, J. B.

Erez, G.

Hung, S. M.

R. E. Taylor, S. M. Hung, “Frequency Domain Analysis of Upwelling in Blocked Structures,” SERC Programme of Research into Dynamics of Compliant Structures, Report (1986).

Johnson, W. O.

Kafri, O.

Kanaya, N.

M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).

Livnat, A.

Meadows, D. M.

Messer, H. I.

G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
[CrossRef]

Owen, D. G.

D. G. Owen, I. A. Padilla-Perez, “An Experimental Investigation of Wave Interaction Effects Involving Groups of Large Diameter Cylinders,” in Proceedings, Seventh International Conference, OMAE, Houston (1988).

Padilla-Perez, I. A.

D. G. Owen, I. A. Padilla-Perez, “An Experimental Investigation of Wave Interaction Effects Involving Groups of Large Diameter Cylinders,” in Proceedings, Seventh International Conference, OMAE, Houston (1988).

Pirodda, L.

L. Pirodda, “Shadow and Projection Moire Techniques for Absolute or Relative Mapping of Surface Shapes,” Opt. Eng. 24, 640–649 (1982).

Reid, G. T.

G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
[CrossRef]

Rixon, R. C.

G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
[CrossRef]

Shokouchi, R.

M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).

Suzuki, K.

M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).

Suzuki, M.

M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).

Takasaki, H.

Taylor, R. E.

R. E. Taylor, S. M. Hung, “Frequency Domain Analysis of Upwelling in Blocked Structures,” SERC Programme of Research into Dynamics of Compliant Structures, Report (1986).

Appl. Opt. (3)

Opt. Eng. (1)

L. Pirodda, “Shadow and Projection Moire Techniques for Absolute or Relative Mapping of Surface Shapes,” Opt. Eng. 24, 640–649 (1982).

Opt. Laser Tech. (1)

G. T. Reid, R. C. Rixon, H. I. Messer, “Absolute and Comparative Measurements of Three-Dimensional Shape by Phase Measuring Moire Topography,” Opt. Laser Tech. 16, 315–319 (1984).
[CrossRef]

Other (3)

D. G. Owen, I. A. Padilla-Perez, “An Experimental Investigation of Wave Interaction Effects Involving Groups of Large Diameter Cylinders,” in Proceedings, Seventh International Conference, OMAE, Houston (1988).

R. E. Taylor, S. M. Hung, “Frequency Domain Analysis of Upwelling in Blocked Structures,” SERC Programme of Research into Dynamics of Compliant Structures, Report (1986).

M. Suzuki, N. Kanaya, K. Suzuki, R. Shokouchi, “Projection Type Moire System Used for Early Detection of Scoliosis,” in Proceedings, International Symposium on Moire Topography and Spinal Deformity, M. S. Moreland, Ed. (Pergamon, New York, 1981).

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Figures (4)

Fig. 1
Fig. 1

Principle of projection moire topography.

Fig. 2
Fig. 2

Model setup.

Fig. 3
Fig. 3

Typical fringe pattern photograph.

Fig. 4
Fig. 4

Isometric drawing.

Equations (1)

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h N = b ( b - f ) N P / { f l - ( b - f ) N P } ,

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