Redesigning Taguchi Sensor

, Hossein-Babaei Faramarz; Park, Won-Kyu; , Hossein-Babaei Faramarz; Park, Won-Kyu

doi:2005.42.1.11

J. Korean Ceram. Soc. > Volume 42(1); 2005 > Article

Journal of the Korean Ceramic Society 2005;42(1): 11.
doi: https://doi.org/10.4191/kcers.2005.42.1.011

Redesigning Taguchi Sensor

Electrical Engineering Department, KNT University of Technology
¹Department of Advanced Materials Engineering, Paichai University

ABSTRACT

The configuration of the main components and the physical structure of the Taguchi sensor, the first ceramic gas sensor mass produced, has remained virtually unaltered since its appearance 40 years ago. This device owns an excellent combination of the quality factors but is non-selective. The research efforts carried out to enhance the selectivity in this resistive gas sensor are briefly reviewed. A novel design, Capillary-attached Gas Sensor (CGS), is introduced, which employs the same ceramic components used for the fabrication of a classical Taguchi sensor but in altered geometries. CGS presents remarkable advantages from the view point of selectivity over the original design. While the steady state response of a CGS has the same significance as that of the Taguchi sensor, its transient response presents valuable diagnostic information. Fabrication and test of a prototype CGS is reported.

Key words: Gas sensor, Taguchi sensor, Sensitivity, Selectivity, Gas diagnosis, Transient response, Steady state response