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Experimental techniques in infrared measurements of thin-film plastics.

机译：薄膜塑料红外测量的实验技术。

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The work herein presents the results of various infrared measuring experiments designed to measure the temperature of thin-film plastics, specifically the plastic material used for scientific High Altitude Balloons (HAB)s. This thesis explains the physics involved with infrared radiation and its connections with the materials the balloons are constructed of. Also, this work outlines experiments developed for four major ballooning projects, including various research techniques visited both conceptually and physically in a laboratory. Little infrared measurement research has been performed on the balloon material itself, especially while the balloon is in flight. The sensitive nature of balloons themselves makes it difficult to measure the material with traditional contact methods, thus non-contact methods are left as the only viable option. The primary method for non-contact temperature measurement is measuring radiative heat transfer to and from the balloon via Infrared (IR) temperature sensors. The idea behind measuring the infrared effects on these balloons is to observe the behavior of the balloon by monitoring its surface temperature, in an effort to improve the longevity and operation of said balloons. Throughout the research and development of these measurement techniques, different aspects of experimentation and theory were adapted. Most notably, technology advancements with the thermopile IR sensors changed yearly in a progressive manner that better allowed for measurement of materials with unknown emission properties. Other noteworthy results focus on the use of black body cavities to create well controlled radiative heat transfer systems in the laboratory that when coupled with the specially tuned IR sensors will provide information on material properties and behavior.
机译：本文的工作提出了各种红外测量实验的结果，这些实验旨在测量薄膜塑料的温度，特别是用于科学高海拔气球（HAB）的塑料材料的温度。本文阐述了红外辐射的物理原理及其与气球材料的联系。此外，这项工作还概述了为四个主要的热气球项目开发的实验，包括从概念上和物理上在实验室中进行过考察的各种研究技术。很少对气球材料本身进行红外测量研究，尤其是在飞行过程中。气球本身的敏感性使传统的接触方法难以测量材料，因此非接触方法是唯一可行的选择。非接触式温度测量的主要方法是测量通过红外（IR）温度传感器进出气球的辐射热。测量这些气球上的红外线影响的想法是通过监视气球的表面温度来观察气球的行为，以努力提高所述气球的寿命和操作性。在这些测量技术的整个研发过程中，对实验和理论的不同方面进行了调整。最值得注意的是，热电堆红外传感器的技术进步逐年变化，可以更好地测量具有未知发射特性的材料。其他值得注意的结果集中于使用黑体腔在实验室中创建受控制的辐射传热系统，当与经过特殊调整的IR传感器配合使用时，将提供有关材料特性和性能的信息。

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