Title :
Performance of an embedded SAW sensor for filter bed monitor and the development of a wireless monitoring prototype system
Author :
Dominguez, Dawn D. ; McGill, R.A. ; Chung, Russell ; Nguyen, Viet
Author_Institution :
Naval Res. Lab., Washington, DC, USA
Abstract :
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
Keywords :
adsorption; carbon; gas sensors; surface acoustic wave sensors; C; breakthrough characteristics; carbon adsorbent; dimethyl methylphosphonate; embedded SAW sensor; filter bed monitor; filter test bed; gas filter; gas sensors; miniature wireless remotely-powered SAW sensor; polymer-coated SAW sensors; porous carbon gas filters; residual adsorption capacity; wireless monitoring prototype; Carbon dioxide; Chemical sensors; Filters; Gas detectors; Monitoring; Pollution measurement; Sensor systems; Surface acoustic waves; Testing; Wireless sensor networks;
Conference_Titel :
Frequency Control Symposium, 1998. Proceedings of the 1998 IEEE International
Conference_Location :
Pasadena, CA
Print_ISBN :
0-7803-4373-5
DOI :
10.1109/FREQ.1998.717962
