Development of a PVDF Pressure Gauge for Blast Loading Measurement
| Autor: | J. Le Clanche, S. Kerampran, Michel Arrigoni, M. Monloubou, F. Bauer |
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| Přispěvatelé: | Institut de Recherche Dupuy de Lôme (IRDL), Université de Bretagne Sud (UBS)-Université de Brest (UBO)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Centre National de la Recherche Scientifique (CNRS), A.I.F.P. - Advices in Ferrorelaxor Polymers (A.I.F.P.), Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Techniques Avancées Bretagne (ENSTA Bretagne)-Université de Brest (UBO)-Université de Bretagne Sud (UBS) |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Calibration curve Acoustics Biomedical Engineering 02 engineering and technology 01 natural sciences law.invention law 0103 physical sciences Pressure [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] Oscilloscope Shock tube Charge amplifier Sensor 010302 applied physics Measurement [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Mechanics of the fluids [physics.class-ph] Mechanical Engineering PVDF Gauge (firearms) 021001 nanoscience & nanotechnology Blast Shock (mechanics) Pressure measurement Coaxial 0210 nano-technology Biotechnology |
| Zdroj: | Human Factors and Mechanical Engineering for Defense and Safety Human Factors and Mechanical Engineering for Defense and Safety, 2018, 2 (2), ⟨10.1007/s41314-018-0012-2⟩ |
| ISSN: | 2509-8004 |
| DOI: | 10.1007/s41314-018-0012-2⟩ |
| Popis: | International audience; We investigate the development of a sensor for dynamic pressure measurement. The sensor relies on a Bauer shock gauge of 25-μm thin Polyvinylidene fluoride (PVDF) film [AIP Conf. Proc 706:1121–1124, [21]. These gauges unfortunately require some skills to be integrated in an acquisition chain and the obtained results are strongly “experiment dependent.” In the presented work, the classical Bauer gauge has been adapted: the reproducible PVDF film is poled at high voltage, in electrical symmetrical response and reproducibility. The sensitive area is a 3 × 3 mm square. The gauge has been electrically shielded and overlaid with a heat conductive material. A 5-m long coaxial wire connects the gauge to a charge amplifier, allowing its connection to a deported oscilloscope. The output electrical charge of the PVDF gauge has been correlated with the pressure measured by calibrated PCB® sensors. Measured pressures are validated by an analytical approach and numerical simulations of the flow in the shock tube. A calibration curve can be deduced for pressures below 10 bar, values which are often met in blast loading situations. This customizable sensor is hence suitable and easy to use to measure the blast-reflected pressure on a flat material. |
| Databáze: | OpenAIRE |
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