Referenced Items are not available for this document.
A pressure-measurement system based on surface-acoustic-wave (SAW) sensors is presented in this paper. Since SAW sensors are powered by the energy of the RF field, no battery is required, which is a major drawback of conventional microcontroller-based telemetry systems. A successful combination of a SAW reflective delay line with a high-Q capacitive pressure sensor is shown, With a new way of matching the sensor impedance to the SAW reflector impedance, both a high signal-to-noise ratio and a high signal dynamic are achieved, which supports accurate signal evaluation. As an example of realization, the prototype of the pressure sensor unit is presented
Published in:
Microwave Theory and Techniques, IEEE Transactions on
(Volume:48
,
Issue:
12
)
Date of Publication: Dec 2000
- Page(s):
- 2730 - 2735
- ISSN :
- 0018-9480
- INSPEC Accession Number:
- 6842569
- Digital Object Identifier :
- 10.1109/22.899037
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 August 2002
- Issue Date :
- Dec 2000
- Sponsored by :
- IEEE Microwave Theory and Techniques Society
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