In-situ soil gas analysis with a robust SAW sensor system integrated in percussion driven penetration cones

被引：0
|
作者：
Skrypnik, Aleksandr [1 ]
Voigt, Achim [1 ]
Rapp, Michael [1 ]
机构：
[1] Forschungszentrum Karlsruhe, Inst Mikrostrukt Tech, Hermann Von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany
来源：
TRANSDUCERS '07 & EUROSENSORS XXI, DIGEST OF TECHNICAL PAPERS, VOLS 1 AND 2 | 2007年
关键词：
surface acoustic waves; SAW; sensor arrays; polymer; organic volatiles; soil gas detection;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present the first integration of a SAW sensor based sensor system (electronic nose) into a percussion driven penetration cone for in situ soil gas analysis. The system includes an 8-fold SAW sensor array with different polymers as sensitive coatings, sampling system with absorbent materials for the selective enrichment of analytes, inlet system for probing ambient soil, rechargeable battery pack and a remote control to an external PC on ground via Bluetooth. By means of an integrated spring based mechanical decoupling system measurements could be performed even during penetration of the cone via a pneumatic hammer! Proper operation of sensor system was possible until soil depths of 8m!.
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