M. Pereira da Cunha, R. Lad, P. Davulis, A. Canabal, T. Moonlight, S. Moulzolf, D. Frankel, T. Pollard, D. McCann, E. Dudzik, A. Abedi, D. Hummels, G. Bernhardt
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引用次数: 41
Abstract
This paper reviews current progress in the area of wireless microwave acoustic sensor technology, and discusses advances in wireless interrogation systems that can operate in harsh environments. The use of wireless, battery-free, low maintenance surface acoustic wave (SAW) sensors has been successfully demonstrated in applications including high temperature turbine engines and inflatable aerospace structures. Wireless interrogation of multiple sensors up to 910°C has been established and sensor tests in gas turbine engine are reported. This paper elaborates on several aspects of the technology, including: high-temperature thin-film electrode and sensor development, temperature cycling, thermal-shock behavior, testing in turbine engine environments, sensor packaging and attachment, wireless operation, and adaptation to energy and industrial applications.
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