论文信息 - High-resolution rotation-angle measurement of a cylinder using speckle displacement detection.

High-resolution rotation-angle measurement of a cylinder using speckle displacement detection.

A new method for measuring the rotation angle of a cylinder is described, based on the speckle displacement detection caused by the cylinder surface rotation. It is shown that this method is effective for measuring the small rotation angle with high resolution. The accuracy, sensitivity, and resolution of this method are determined by the speckle size, detector pitch, and magnification of the speckle displacement. The configuration to obtain an accurate, sensitive, stable measuring system is discussed. The usefulness of this method is confirmed by experiments.

A Hayashi | Y Kitagawa

[1] Junji Ohtsubo,et al. Velocity measurement using the time-space cross-correlation of speckle patterns , 1980 .

[2] I. Yamaguchi. Real-Time Measurement of In-Plane Translation and Tilt by Electronic Speckle Correlation , 1980 .

[3] Toshimitsu Asakura,et al. Real-time velocity measurement for a diffuse object using zero-crossings of laser speckle , 1980 .

[4] Camera testing by use of speckle patterns. , 1974, Applied optics.

[5] Velocity Measurement of Diffuse Objects by Using Speckle Dynamics , 1976 .

[6] Automatic Measurement of Vertex Refraction with Coherent Light , 1975 .

[7] A Speckle Pattern Velocimeter Using a Periodical Differential Detector : Speckle Patterns , 1975 .

[8] E. Ingelstam,et al. Eye refraction examined by aid of speckle pattern produced by coherent light. , 1972, Vision research.

[9] I. Yamaguchi,et al. A laser-speckle strain gauge , 1981 .

[10] J H Churnside,et al. Velocity measurement using laser speckle statistics. , 1981, Applied optics.

[11] J. McLaughlin. Focus-position sensing using laser speckle. , 1979, Applied optics.