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This paper presents a wireless dynamic measurement of the air blast overpressure. This system is based on a piezoelectric PolyVinyliDene Fluoride (PVDF) sensor fully characterized in a shock tube calibration instrument. A dedicated optimized wireless system is used in order to transmit the transient pressure. The pressure signal inside a fire ball was recorded wirelessly for the first time during...
In this communication we present a new and different approach based on electromagnetic transduction principle, which can be used for long distance covering pressure measurement. Previous work reported by the authors has validated the principle of the electromagnetic transduction for 400 mum silicon membrane thickness and with the hypothesis of uniform vertical membrane displacement. In this new report...
In this paper a new type of low cost, smart and high sensitivity pressure micro-sensor is designed based on electromagnetic transduction principle, which can be used for long distance covering measurement. As it will be shown in this paper, the resulting pressure cell presents a high sensitivity to the applied pressure, is compatible with fully passive wireless sensor unit and does not require electronic...
A novel system is reported here for the pressure measurement at microwave and millimetre-wave frequencies. This method consists in using a radio frequency transducer based on RF resonator. Accurate determination of the pressure is expected.
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