bullet Sensors & Transducers Journal

    (ISSN 1726- 5479)


2007 e-Impact Factor

25 Top Downloaded Articles

Journal Subscription 2009/2010

Editorial Calendar 2009

Submit an Article

Editorial Board

Current Issue

Sensors & Transducers journal's cover


Sensors & Transducers Journal 2007

2000-2002 S&T e-Digest Contents

2003 S&T e-Digest Contents

2004 S&T e-Digest Contents

2005 S&T e-Digest Contents

2006 S&T e-Digest Contents


Best Articles 2007




Vol. 99, Issue 12, December 2008, pp.7-17





Design and Development of an Embedded System for Measurement of Temperature and Remote Communication Using Fiber Optic Cable


Raghavendra Rao Kanchi, Sreelekha Kande and Ramanjappa Thogata

Electronics Laboratories, Department of Physics, Sri Krishnadevaraya University,
Anantapur- 515 055, Andhra Pradesh, India

E-mail: drkrr@rediffmail.com



Received: 21 November 2008   /Accepted: 22 December 2008   /Published: 30 December 2008


Abstract: This paper deals with the design of an embedded system for acquiring the temperature, and a fiber optic communication system to link the embedded system with a remotely located IBM compatible PC. The resistive temperature detector (RTD) is used as a temperature sensor, and is interfaced with Atmelís 89C2051 microcontroller. Temperature values measured in real-time are stored in the on-chip RAM of the microcontroller. These values are processed to a remote PC using fiber optic link. Signal conditioning of the measuring system is accomplished using a constant current source IC REF 200 and an amplifier circuit built in the laboratory using CA 3140. Though the PC does acquire data (data acquisition) and analyze it, the load on PC is very minimal and hence does not get locked up during the acquisition of temperature data in real-time, because it is being taken care by the embedded system. Software is developed in assembly, embedded C and Turbo C. Resonance Integrated Development Environment (RIDE) and Turbo C compilers are used for software development on microcontroller and PC, respectively.


Keywords: Temperature sensor, Fiber optic-link, Microcontroller, Resistive temperature detector (RTD)


 Acrobat reader logo Click <here> or title of paper to download the full pages article (1.7 Mb)





1999 - 2008 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News - Links - Archives - Tools - Standardization - Patents - Marketplace - Projects - Wish List - Subscribe - Search - Membership - Submit Press Release

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums - Polls - Sensor Jobs - e-Shop - Site Map