Low Cost Fiber Optic Velocimeter

A. A. Boiarski

doi:10.1117/12.949777

3 January 1986 Low Cost Fiber Optic Velocimeter

A. A. Boiarski

Proceedings Volume 0566, Fiber Optic and Laser Sensors III; (1986) https://doi.org/10.1117/12.949777
Event: 29th Annual Technical Symposium, 1985, San Diego, United States

Abstract

A noncontact, fiber-optic-based velocity measurement device which has not received much attention in the literature is what could be called a "Retical Image Velocimeter" or RIV. It provides the potential of velocity measurement accuracy comparable to more costly techniques. The chief advantage of the RIV method is that a coherent light source is not required. Instead, an inexpensive light-emitting diode is used in conjunction with fiber optic light guides and a reticle to produce a real fringe image at the point of measurement. Light scattered from particles or surface irregularities moving through this point is modulated by the reticle pattern. Collection, fiber optic transmission, detection, and frequency analysis of this scattered light at a remote location are used to infer the velocity of flow in a transparent media or the speed of a moving surface.

Citation Download Citation

A. A. Boiarski "Low Cost Fiber Optic Velocimeter", Proc. SPIE 0566, Fiber Optic and Laser Sensors III, (3 January 1986); https://doi.org/10.1117/12.949777

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available