Modeling and Experimental Strain Measurements on a Non-Homogeneous Cylinder Under Transverse Load
Abstract
Optical fiber sensors have the capability of sensing environmental factors, including strain and temperature. In particular, optical ber Bragg gratings have been used to create multi-parameter sensors capable of measuring axial and transverse strain in addition to temperature. These measurements are made by writing gratings into optical bers at two separated wavelengths, 1300 and 1550 nm, and monitoring the polarization sensitive output from the sensor. While there is an analytical model for determining the strain on a homogeneous cylinder under transverse load, these ber optic sensors are not homogeneous as they consist of distinct regions within the ber: core, cladding, and stress rods. We measure the strain on a multi-parameter ber Bragg grating written at 1550nm under transverse load at 0, 15, 30, 45, 60, 75, and 90 and compare these values with an analytical solution accounting for internal stresses and transverse load.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 2004
- Accession Number
- ADA452687
Entities
People
- Eric Udd
- John A. Viator
- Michele W. Winz
- Stephen Kreger