A Caltech Library Service

A Resonance-Induced Sensitivity Enhancement Method for Conductivity Sensors

Shih, Chi-Yuan and Li, Wei and Zheng, Siyang and Tai, Yu-Chong (2006) A Resonance-Induced Sensitivity Enhancement Method for Conductivity Sensors. In: 2006 IEEE Sensors. IEEE , Piscataway, NJ, pp. 271-274. ISBN 978-1-4244-0375-2.

PDF - Published Version
See Usage Policy.


Use this Persistent URL to link to this item:


We demonstrated in this paper a novel technique named Resonance-Induced Sensitivity Enhancement (RISE) method to be used for significantly improving the sensitivity of a variety of conductivity sensing devices. The technique works by introducing a parallel inductor to the conductivity sensor cell and operating the sensor system at the resonant frequency of its equivalent circuit model. At the resonant frequency, parasitic capacitances that are either in series or in parallel with the target conductance can be virtually removed from the equivalent circuit and therefore a much higher sensitivity to the target conductance is obtained. In a specific example, the sensitivity of a microchip capacitively-coupled contactless conductivity detector (C^4D) can be improved by more than 10,000 times.

Item Type:Book Section
Related URLs:
URLURL TypeDescription DOIArticle
Li, Wei0000-0003-2543-2558
Tai, Yu-Chong0000-0001-8529-106X
Additional Information:© 2006 IEEE. Issue Date: 22-25 Oct. 2006. Date of Current Version: 07 May 2007.
Record Number:CaltechAUTHORS:20110720-103050294
Persistent URL:
Official Citation:Chi-Yuan Shih; Wei Li; Siyang Zheng; Yu-Chong Tai; , "A Resonance-Induced Sensitivity Enhancement Method for Conductivity Sensors," Sensors, 2006. 5th IEEE Conference on , vol., no., pp.271-274, 22-25 Oct. 2006 doi: 10.1109/ICSENS.2007.355772 URL:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:24481
Deposited By: Tony Diaz
Deposited On:21 Jul 2011 17:37
Last Modified:03 Oct 2019 02:56

Repository Staff Only: item control page