Abstract
In this chapter the correct choice, layout and adjustment of a laser Doppler system for one, two or three velocity components will be discussed. This requires, among other things, a priori information about the flow field; in particular, which flow quantities are to be measured and their desired measurement accuracy (section 7.1). From this, the necessary dimensions of the measurement volume and the required seed particle concentration follow. Once this information is known, it is necessary to select the components of the optical system to achieve these values in the flow rig considered (sections 7.2, 7.3). Typical examples of such systems and how they can be customized and optimized for particular applications are discussed in section 7.4. For completeness, the laser transit velocimeter (LTV) is presented in section 7.5 as the limiting case of a laser Doppler system with two fringes in the measurement volume.
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© 2003 Springer-Verlag Berlin Heidelberg
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Albrecht, HE., Borys, M., Damaschke, N., Tropea, C. (2003). Laser Doppler Systems. In: Laser Doppler and Phase Doppler Measurement Techniques. Experimental Fluid Mechanics. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-05165-8_7
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DOI: https://doi.org/10.1007/978-3-662-05165-8_7
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-08739-4
Online ISBN: 978-3-662-05165-8
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