Method of using thin metallic foils to minimize thermal transients and photoelectric effects in pressure measurements

2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720) Pub Date : 2004-03-13 DOI:10.1109/AERO.2004.1368052

J. Booth, R. W. Milton, M.W. Kirkham

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Abstract

This paper discusses the development of a method to reduce the transient effects on piezoelectric pressure transducers used in the measurement of blast overpressure produced by non-conventional explosives. This method was developed during testing of high-energy and non-conventional explosives at the Aviation and Missile Research, Development and Engineering Center (AMRDEC) on the Redstone Arsenal in Huntsville, Alabama. There are two major contributors that negatively affect the quality of data gathered in the measurement of blast overpressures using piezoelectric pressure transducers. These undesirable effects are thermal and photoelectric transients generated in the explosive blast. These transients were found to obscure the data generated by causing a non-positive amplitude shift in the pressure-time curves when trying to measure the performance of non-conventional explosives. This paper explores the phenomenon in detail, utilizing graphical data derived from laboratory experiments to explain the problem and to illustrate how the use of this method may improve blast measurements.

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在压力测量中使用薄金属箔最小化热瞬变和光电效应的方法

本文讨论了一种减少用于测量非常规炸药爆炸超压的压电压力传感器瞬态效应的方法。这种方法是在阿拉巴马州亨茨维尔红石兵工厂的航空和导弹研究、开发和工程中心(AMRDEC)对高能和非常规炸药进行测试时开发的。在使用压电压力传感器测量爆炸超压时，有两个主要因素会对收集到的数据质量产生负面影响。这些不良影响是爆炸爆炸中产生的热和光电瞬变。当试图测量非常规炸药的性能时，发现这些瞬变会使压力-时间曲线的非正振幅位移所产生的数据模糊不清。本文详细探讨了这一现象，利用从实验室实验中得到的图形数据来解释这一问题，并说明使用这种方法如何改进爆炸测量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2004 IEEE Aerospace Conference Proceedings (IEEE Cat. No.04TH8720)

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