Publication:
Fiber Optic Accelerometer With Centrally Supported Flexural Disk

Loading...
Thumbnail Image
Authors
Hofler, Thomas J.
Drown, David A.
Garrett, Steven L.
Subjects
Advisors
Date of Issue
1994-11-29
Date
Publisher
The United States of America as represented by the Secretary of the Navy, Washington, DC (US)
Language
Abstract
An accelerometer or seismometer has an elastic disk bearing a mass distributed peripherally around the disk. The disk is supported for flexure and for isolation from mounting strain by a stob centrally through the disk. The accelerometer or seismometer has a pair of flat spirals of optical fiber, each spiral being fixedly attached to a corresponding disk side so that disk flexure lengthens a spiral on one disk side and shortens a spiral on an oppositely facing disk side and so that temperature differences between the spirals are minimized. The pair of spirals are connected as legs of a fiber optic interferometer so that the interferometer provides an output corresponding to the flexure. Several of the disks and asociated pairs of spirals may be coaxially mounted to provide increased sensitivity.
Type
Patent
Description
Patent
Series/Report No
Department
Organization
Monterey, California : Naval Postgraduate School
Identifiers
NPS Report Number
Sponsors
Funder
Format
Citation
Distribution Statement
Rights
This publication is a work of the U.S. Government as defined in Title 17, United States Code, Section 101. Copyright protection is not available for this work in the United States.
Collections