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Wireless Transmission of Friedlander‐Type Signals for the Dynamic Measurement of Blast Pressure
Author(s) -
Chalnot Mathieu,
Coustou Anthony,
Aubert Hervé,
Pons Patrick,
Lavayssière Maylis,
Lefrançois Alexandre,
Luc Jérôme
Publication year - 2021
Publication title -
propellants, explosives, pyrotechnics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.56
H-Index - 65
eISSN - 1521-4087
pISSN - 0721-3115
DOI - 10.1002/prep.202000163
Subject(s) - explosive material , detonation , wireless , pressure sensor , wireless transmission , bandwidth (computing) , pressure measurement , transmission (telecommunications) , computer science , wideband , data acquisition , electronic engineering , acoustics , engineering , telecommunications , physics , mechanical engineering , chemistry , organic chemistry , operating system
During explosive detonation or air blast experiments, long cables are commonly used for transmitting signals delivered by pressure sensors to the safe place of the acquisition unit. While constant efforts are undertaken for enlarging the bandwidth of sensors in order to improve the measurement precision of the peak pressure, the limitations of the wired transmission of blast pressure signals delivered by these sensors are not addressed. We discuss here such limitations and propose a wireless new solution for the dynamic measurement of Friedlander‐type signals delivered by ultra‐wideband sensors (> 10M H z ). Contrary to the wired solution, the distance between the sensor and the acquisition unit does not limit the measurement bandwidth of the wireless setup. Experimental results are reported for validation purposes and pave the way of the dynamic measurement of blast pressure variations occurring at the heart of the fireball generated during explosions.