Investigation of a fiber specklegram sensor for structural fatigue monitoring

Janet Sawyer; Paul B. Ruffin; Cassie M. Lofts

doi:10.1117/12.173949

1 May 1994 Investigation of a fiber specklegram sensor for structural fatigue monitoring

Janet Sawyer, Paul B. Ruffin, Cassie M. Lofts

Proceedings Volume 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation; (1994) https://doi.org/10.1117/12.173949
Event: 1994 North American Conference on Smart Structures and Materials, 1994, Orlando, FL, United States

Abstract

An in-house laboratory independent research program was initiated at the U.S. Army Missile Command (MICOM) to develop a Fiber Specklegram Sensor (FSS) for structural monitoring of fiber optic bobbins during long-term storage. The purpose of this effort is to develop a nondestructive measurement technique to monitor the structural fatigue of the Fiber Optic Guided Missile (FOG-M) fiber optic payout bobbin. Issues associated with the fiber optic bobbin or dispenser are inter-layer stress buildup due to multi-layer winding, structural fatigue of fiber packs during long-term storage, and mechanical defects in the bobbin due to temperature fluctuations. A bulk optics FSS has been assembled, and test results quantify the FSS as a highly sensitive strain sensor. Several fibers were characterized by using compression and temperature tests to select a fiber that would provide the most sensitivity. The Corning graded index multimode 100/140 micron fiber was selected as the sensing fiber for the FSS. The sensing fiber was successfully embedded in a miniature composite bobbin.

Citation Download Citation

Janet Sawyer, Paul B. Ruffin, and Cassie M. Lofts "Investigation of a fiber specklegram sensor for structural fatigue monitoring", Proc. SPIE 2191, Smart Structures and Materials 1994: Smart Sensing, Processing, and Instrumentation, (1 May 1994); https://doi.org/10.1117/12.173949

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

Members: $17.00

Non-members: $21.00 ADD TO CART

PROCEEDINGS
11 PAGES

DOWNLOAD PAPER SAVE TO MY LIBRARY

GET CITATION

RIGHTS & PERMISSIONS

Get copyright permission Get copyright permission on Copyright Marketplace

KEYWORDS

Multimode fibers

Composites

Optical fibers

Lead

Sensors

Speckle pattern

Fiber optics sensors

Show All Keywords

Keywords/Phrases

Search In:

Publication Years