The University of Southampton
University of Southampton Institutional Repository

Serial digital multiplexing of transducer data for intrinsically safe applications

Collins, Richard Paul (1991) Serial digital multiplexing of transducer data for intrinsically safe applications University of Southampton, School of Electronics and Computer Science, Doctoral Thesis .

Record type: Thesis (Doctoral)

Abstract

The galvanic isolation of fibre optic transmission offers a distinct advantage in the design of a telemetry system to meet intrinsic safety requirements. So far the usage of fibre optics in instrumentation systems has been largely confined to the implementation of point to point links due to the difficulties encountered in tapping into an optical fibre. Recent developments in the use of intelligence within instrumentation systems, however, have generally tended to concentrate on the concept of multiplexed signal paths. The aim of the work here has been to realise an intrinsically safe fibre optic multi-drop bus utilising an unbroken fibre as the transmission path. The technique employed involves the modulation of light within the fibre using an acoustic wave to vary the characteristics of a multi- mode fibre resulting in a differential phase modulation of the propagating modes. Since the system is unidirectional the use of two-way protocols is precluded and instead the method adopted uses the technique of allowing collisions of data to occur on the basis that they can be detected and the corrupted data can be subsequently ignored.

Full text not available from this repository.

More information

Published date: 1991
Organisations: University of Southampton

Identifiers

Local EPrints ID: 47472
URI: http://eprints.soton.ac.uk/id/eprint/47472
PURE UUID: ab7b5645-1d09-4eb5-8083-be2e968fffe1

Catalogue record

Date deposited: 17 Aug 2007
Last modified: 17 Jul 2017 15:04

Export record

Contributors

Author: Richard Paul Collins

University divisions

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×