Cart (Loading....) | Create Account
Close category search window
 

Interfacing Differential Resistive Sensors to Microcontrollers: A Direct Approach

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Reverter, F. ; Sensors & Interfaces Group, Univ. Politec. de Catalunya, Castelldefels, Spain ; Casas, O.

This paper introduces and analyzes a novel circuit to directly connect differential resistive sensors to microcontrollers without using either a signal conditioner or an analog-to-digital converter (ADC) in the signal path. This new circuit relies on measuring the discharging time of several resistance-capacitance ( RC) circuits that include the two sensor resistances. Such an operating principle makes the circuit simple, compact, low cost, low power, and accurate. The main uncertainty sources are the quantization of the discharging time measurement and the mismatch of internal resistances of the microcontroller. According to experimental results, the circuit shows errors in the range of 0.01% full-scale span (FSS), and the effective resolution can be up to 13 bits for a measuring time of 100 ms, which are very remarkable considering its simplicity.

Published in:

Instrumentation and Measurement, IEEE Transactions on  (Volume:58 ,  Issue: 10 )

Date of Publication:

Oct. 2009

Need Help?


IEEE Advancing Technology for Humanity About IEEE Xplore | Contact | Help | Terms of Use | Nondiscrimination Policy | Site Map | Privacy & Opting Out of Cookies

A not-for-profit organization, IEEE is the world's largest professional association for the advancement of technology.
© Copyright 2014 IEEE - All rights reserved. Use of this web site signifies your agreement to the terms and conditions.