Research Article
Fast Phase Analysis of SAW Delay Lines
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@INPROCEEDINGS{10.1007/978-3-319-47075-7_42, author={Christian Gruber and Alfred Binder and Martin Lenzhofer}, title={Fast Phase Analysis of SAW Delay Lines}, proceedings={Internet of Things. IoT Infrastructures. Second International Summit, IoT 360° 2015, Rome, Italy, October 27-29, 2015, Revised Selected Papers, Part II}, proceedings_a={IOT360}, year={2017}, month={6}, keywords={SAW Surface Acoustic Wave Sensor SAW sensor interrogation Pulse radar I/Q-demodulation}, doi={10.1007/978-3-319-47075-7_42} }- Christian Gruber
Alfred Binder
Martin Lenzhofer
Year: 2017
Fast Phase Analysis of SAW Delay Lines
IOT360
Springer
DOI: 10.1007/978-3-319-47075-7_42
Abstract
Today continuous wave (CW) radar systems have been established as a standard method to interrogate surface acoustic wave (SAW) delay line sensors. They provide an ideal solution with high accuracy and reasonable reading distances for low dynamic measured quantities, which do not change fast in time. But their relatively long reading cycles [1] makes them unsuitable for high dynamic measurements. This paper illustrates a concept of an interrogation principle based on a pulse radar system which allows decreasing the reading cycle of a SAW delay line to a minimum of about 3 µs given by the physical dimension of the SAW delay line tag itself [2, 3].
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