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Inductively coupled sensing using a quartz crystal microbalance

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3 Author(s)
Wei Wu ; Dept. of Electr. & Comput. Eng., Carnegie Mellon Univ., Pittsburgh, PA ; Greve, D.W. ; Oppenheim, I.J.

We report the application of a quartz crystal microbalance (QCM) in an inductively coupled measurement. Inductive coupling makes it possible to locate the sensing element in a hostile environment and to perform measurements without direct wired connections. We demonstrate inductively coupled sensing of methanol in nitrogen using a poly(ethyl methacrylate) adsorbing layer. The gas-related signal is easily detectable and is substantially larger than changes associated with thermal expansion of the apparatus.

Published in:

Ultrasonics Symposium, 2008. IUS 2008. IEEE

Date of Conference:

2-5 Nov. 2008