Scheduled System Maintenance:
On Wednesday, July 29th, IEEE Xplore will undergo scheduled maintenance from 7:00-9:00 AM ET (11:00-13:00 UTC). During this time there may be intermittent impact on performance. We apologize for any inconvenience.
By Topic

Linearity study of a self-balancing capacitive half-bridge sensor interface

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

3 Author(s)
Yucetas, M. ; Sch. of Sci. & Technol., Electron. Circuit Design Lab., Aalto Univ., Aalto, Finland ; Aaltonen, L. ; Halonen, K.

This paper investigates the sources of non-linearity of a self-balancing capacitive half-bridge sensor interface. It has been shown that the linearity of the interface output with respect to input acceleration is infinity at DC input signals when half-bridge sensor element is assumed as parallel plate capacitor pair. The linearity degrades as the input signal frequency gets higher. The source of the non-linearity is found out to be the phase difference between senor sensor element displacement and the interface output voltage. The analytical expression for the HD3 of the interface is derived. It has been seen that to increase the linearity of the interface, the phase difference can be decreased by increasing the cut-off frequency of the interface loop.

Published in:

Electronics Conference (BEC), 2010 12th Biennial Baltic

Date of Conference:

4-6 Oct. 2010