Zero-crossing detection algorithm for arrays of optical spatial filtering velocimetry sensors

Proceedings of SPIE - The International Society for Optical Engineering

Volumn 7003, Issue , 2008, Pages

  Jakobsen, M L ^a   Pedersen, F ^a   Hanson, S G ^a  

^a TECHNICAL UNIVERSITY OF DENMARK   (Denmark)

Author keywords

Angular velocity; Optical sensor; Pseudovibrations; Spatial filtering velocimetry; Speckle dynamics; Zero crossing detection

Indexed keywords

ALGORITHMS; ANGULAR VELOCITY; CALIBRATION; FILTRATION; LIGHT; ROTATING MACHINERY; ROTATION; SENSORS; SIGNAL DETECTION; SIGNAL TO NOISE RATIO; THERMAL EXPANSION; THERMAL SPRAYING; VELOCIMETERS; VELOCITY MEASUREMENT;

CALIBRATION FACTORS; LINEAR TRANSLATION; LOW-COST OPTICAL SENSORS; NOISE RATIOS; OPTICAL SENSOR; OPTICAL-; PSEUDOVIBRATIONS; SOLID STRUCTURES; SPATIAL FILTERING; SPATIAL FILTERING VELOCIMETRY; SPECKLE DYNAMICS; SPECULAR SURFACES; VELOCIMETRY; ZERO-CROSSING DETECTION;

OPTICAL SENSORS;

EID: 50249165297     PISSN: 0277786X     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1117/12.781561     Document Type: Conference Paper

References (5)

1. M. L. Jakobsen and S. G. Hanson, "Reduction of pseudo-vibrations in rotational measurements, using sensor arrays", ICEM13, 2-6 July 2007, Greece.
2. N. Takai, T. Iwai and T. Asakura, "an effect of curvature of rotating diffuse object on the dynamics of speckle produced in the diffraction field", Appl. Phys. B 26, 185-192 (1981).
3. B. Rose, H. Imam, S. G. Hanson, H. Yura and R. S. Hansen, "Laser-Speckle angular-displacement sensor: theoretical and experimental study", Applied Optics, 37, 2119-2129 (1998).
4. H.T. Yura and S.G. Hanson, "Optical beam wave propagation through complex optical systems," J. Opt. Soc. Am. A 4, 1931-1948 (1987).
5. S. O. Rice, "Mathematical analysis of random noise", Bell System Technical Journal, 23 & 24.