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Performance of an embedded SAW sensor for filter bed monitor and the development of a wireless monitoring prototype system

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4 Author(s)
Dominguez, D.D. ; Naval Res. Lab., Washington, DC, USA ; McGill, R.A. ; Chung, R. ; Nguyen, V.

Methods of measuring the residual adsorption capacity of porous carbon gas filters are virtually non-existent. The main objective of our work is to evaluate the performance of gas sensors that can be operated successfully when embedded in the carbon of a gas filter. This paper describes how polymer-coated SAW sensors have been utilized to monitor the progression of dimethyl methylphosphonate through a filter test bed filled with carbon adsorbent. Performance of the sensor and the breakthrough characteristics of the filter test bed are described. We also describe the design of a miniature, wireless, remotely-powered SAW sensor system

Published in:

Frequency Control Symposium, 1998. Proceedings of the 1998 IEEE International

Date of Conference:

27-29 May 1998