【6h】

Techniques for embedding instrumentation in pressure vessel test articles

机译:在压力容器测试物品中嵌入仪器的技术

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摘要

Many interesting structural and thermal events occur in materials that are housed within a surrounding pressure vessel. In order to measure the environment during these events and explore their causes instrumentation must be installed on or in the material. Transducers can be selected that are small enough to be embedded within the test material but these instruments must interface with an external system in order to apply excitation voltages and output the desired data. The methods for installing the instrumentation and creating an interface are complicated when the material is located in a case or housing containing high pressures and hot gases. Installation techniques for overcoming some of these difficulties were developed while testing a series of small-scale solid propellant and hybrid rocket motors at Marshall Space Flight Center. These techniques have potential applications in other test articles where data are acquired from materials that require containment due to the severe environment encountered during the test process. This severe environment could include high pressure, hot gases, or ionized atmospheres. The development of these techniques, problems encountered, and the lessons learned from the ongoing testing process are summarized.
机译:许多有趣的结构和热事件发生在容纳在周围压力容器中的材料中。为了在这些事件期间测量环境并探究其原因,必须在材料之上或之中安装仪器。可以选择足够小以嵌入测试材料中的换能器,但是这些仪器必须与外部系统连接才能施加激励电压并输出所需的数据。当材料位于包含高压和高温气体的壳体或外壳中时,用于安装仪器和创建界面的方法会很复杂。在马歇尔太空飞行中心测试一系列小型固体推进剂和混合火箭发动机时,开发出了克服这些困难的安装技术。这些技术在其他测试产品中具有潜在的应用,在这些测试产品中,由于在测试过程中遇到的严酷环境,需要从遏制材料中获取数据。这种恶劣的环境可能包括高压,热气或电离气氛。总结了这些技术的发展,遇到的问题以及从正在进行的测试过程中学到的教训。

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