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Spatial Filtering Velocimetry

Fundamentals and Applications

Yoshihisa Aizu, Toshimitsu Asakura (Autoren)

Buch | Hardcover

XII, 212 Seiten

2005 | 2006
Springer Berlin (Verlag)
978-3-540-28186-3 (ISBN)

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The invention of lasers in the early 1960s enhanced the rapid development of optoelectronics which had introduced various optical measurement methods. A typical example of the methods is found in measurements of velocity. It is well recognized that optical velocity measuring methods have important advantages, such as noncontacting and nondisturbing operations, over c- ventional methods employed previously. These fundamental advantages are indicated by the enormous research e?ort which has gone into their devel- ment for many years. One of the optical methods proposed and studied to measure the velocity is laser Doppler velocimetry which was proposed in the early 1960s and extensively studied by many investigators and is at present applied to practical uses. Another is spatial ?ltering velocimetry which was also proposed in the early 1960s and studied by a number of investigators. In comparison with laser Doppler velocimetry, spatial ?ltering velocimetry had not received much attention from investigators but was studied steadily by several research groups mainly in Japan and is now practically used in various ?elds of engineering. Several important books on laser Doppler velocimetry have already been published, but there has been no book on spatial ?ltering velocimetry. This book is the ?rst contribution to spatial ?ltering velocimetry. Therefore, the Introduction of Chapter 1 provides in detail a historical review of spatial ?ltering velocimetry, relating it to other optical methods and discussing its practical relevance. In the book following Chap.

Yoshihisa Aizu received the B. Eng. in electronics from Musashi Institute of Technology in 1980, and Ms. Eng. and Dr. Eng. in electronics from Hokkaido University in 1982 and 1985, respectively. From 1985 to 1989, he was a leader of a research group in the Chofu Laboratory of Kowa Company Limited in Tokyo. In 1989, he joined the Research Institute of Applied Electricity, Hokkaido University, as a research associate. From 1990, he was an associate professor at Muroran Institute of Technology. From 1992 to 1993, he was a visiting researcher at the fluid mechanics institute of University Erlangen, Germany. His current research activities are in the fields of optical velocimetry, optical particle measurements, laser speckles and their applications to scientific, industrial, and medical fields, and biomedical application of visible to near infrared spectroscopy. He is a member of SPIE, OSA, the Japan Society of Applied Physics, Optical Society of Japan, the Japan Society of Mechanical Engineering, and the Society of Instrument and Control Engineers, Japan.

Introduction.- Principle and Properties of the Spatial Filtering Method.- Optical System.- Signal Analysis.- Spatial Filtering Devices and Systems.- Applications.- Fourier Analysis.- Power Spectral Density of the Signal.- Derivation of (2.12).- Derivation of (2.20) and (2.21).- Power Spectra for Spatial Filters in Sect. 2.3.- Derivation of (2.45).- One-Dimensional Power Spectrum of the Signal.- Derivation of Output Signals for Visibility Analysis.

Erscheint lt. Verlag	3.11.2005
Reihe/Serie	Springer Series in Optical Sciences
Zusatzinfo	XII, 212 p. 112 illus.
Verlagsort	Berlin
Sprache	englisch
Maße	155 x 235 mm
Gewicht	445 g
Themenwelt	Naturwissenschaften ► Physik / Astronomie ► Optik
Themenwelt	Technik ► Elektrotechnik / Energietechnik
Schlagworte	Filter • Imaging • Optical velocity measurement • Optical velocity sensor • Optics • Science • Signal Processing • Spatial Filter • Spatial filtering velocimetry • Transmission grating velocimetry
ISBN-10	3-540-28186-X / 354028186X
ISBN-13	978-3-540-28186-3 / 9783540281863
Zustand	Neuware