Experimental Studies Around Shock Tube for Dynamic Calibrations of High-Frequency Pressure Transducers

Lavayssière, Maylis; Luc, J.; Lefrançois, Alexandre

doi:10.1007/978-3-319-91020-8_36

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…In this paper, the shock tube used during these experiments did not have the necessary dimensions to generate pressure steps without deformations of the shock front. In the experiments with this shock tube, there are other non-ideal behaviors that are not considered in our study [ 24 ]. As a consequence, it is irrelevant to compare performances of our sensors with measurements made in another shock tube.…”

Section: Discussionmentioning

confidence: 99%

Demonstration of Pressure Wave Observation by Acousto-Optic Sensing Using a Self-Mixing Interferometer

Maqueda

Perchoux

Tronche

et al. 2023

Sensors

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In this paper, we demonstrate that a compact and inexpensive interferometric sensor based on the self-mixing effect in the laser cavity can be used for the characterization of shock waves. The sensor measures the changes in the refractive index induced by the shock wave. It is based on the self-mixing interferometry scheme. We describe the architecture of the dynamic sensor and the design of the experimental setup used for the characterization that involves a shock tube. Thus, we detail the experimental measurements for shock wave pressure amplitude of 5 bar and address their interpretation with regard to the most admitted models for acousto-optics.

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Section: Discussionmentioning

confidence: 99%

Demonstration of Pressure Wave Observation by Acousto-Optic Sensing Using a Self-Mixing Interferometer

Maqueda

Perchoux

Tronche

et al. 2023

Sensors

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“…The CEA–Gramat Metrology Laboratory uses a metrological shock tube 0.11 m in diameter and 2.7 m in length [ 19 ]. The inner diameter of the tube is 110 mm for an outer diameter of 132 mm, leading to a driver section volume of 8.5 L and a driven section volume of 17 L. The driver section is filled with nitrogen gas, to reach Mach number between 1 and 2.…”

Section: Methodsmentioning

confidence: 99%

“…The incident shock wave, represented by a blue line, travels in the driven section of the tube until it reflects on the end wall to reach the pressure P 5 and comes back into the gas compressed and heated by the incident shock wave. The CEA-Gramat Metrology Laboratory uses a metrological shock tube 0.11 m in diameter and 2.7 m in length [19]. The inner diameter of the tube is 110 mm for an outer diameter of 132 mm, leading to a driver section volume of 8.5 L and a driven section volume of 17 L. The driver section is filled with nitrogen gas, to reach Mach number between 1 and 2.…”

Section: The Laboratory Shock-tube Set-up For the Transfer Function D...mentioning

confidence: 99%

Toward Improvements in Pressure Measurements for Near Free-Field Blast Experiments

Lavayssière,

Lefrançois,

Crabos

et al. 2023

Sensors

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This paper proposes two ways to improve pressure measurement in air-blast experimentations, mostly for close-in detonations defined by a small-scaled distance below 0.4 m.kg−1/3. Firstly, a new kind of custom-made pressure probe sensor is presented. The transducer is a piezoelectric commercial, but the tip material has been modified. The dynamic response of this prototype is established in terms of time and frequency responses, both in a laboratory environment, on a shock tube, and in free-field experiments. The experimental results show that the modified probe can meet the measurement requirements of high-frequency pressure signals. Secondly, this paper presents the initial results of a deconvolution method, using the pencil probe transfer function determination with a shock tube. We demonstrate the method on experimental results and draw conclusions and prospects.

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Experimental Studies Around Shock Tube for Dynamic Calibrations of High-Frequency Pressure Transducers

Cited by 2 publications

References 6 publications

Demonstration of Pressure Wave Observation by Acousto-Optic Sensing Using a Self-Mixing Interferometer

Demonstration of Pressure Wave Observation by Acousto-Optic Sensing Using a Self-Mixing Interferometer

Toward Improvements in Pressure Measurements for Near Free-Field Blast Experiments

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