Image:Laser-theory.gif

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[edit] Summary

A low intensity beam of monochromatic light, emitted from a laser diode inside a BLF21-Series flowmeter travels via the probe’s fiber optic light guide through the probe head to illuminate the tissue under study.

There, the laser beam is scattered by reflective components within the tissue. A portion of the light is reflected back, via the probe’s receiving fiber optic light guide, onto a photo detector inside the flowmeter. Generally, this received light has been reflected many times by stationary structures within the tissue as well as by one or more moving particles (mainly red blood cells) within the tissue. It is the moving Doppler effect Transonic Systems, Inc.

[edit] Licensing

I, the copyright holder of this work, hereby publish it under the following license:

Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation license, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled "GNU Free Documentation license".

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	Date/Time	Dimensions	User	Comment
current	18:42, 3 April 2007	352×144 (5 KB)	Moraviaspy	(A low intensity beam of monochromatic light, emitted from a laser diode inside a BLF21-Series flowmeter travels via the probe’s fiber optic light guide through the probe head to illuminate the tissue under study. There, the laser beam is scattered by r)