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Chemochromic Hydrogen Detection

机译：化学变色氢检测

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摘要

Hydrogen is becoming an increasingly important fuel source as fossil fuel supplies decline. The low explosive limit of hydrogen makes leak detection a priority when dealing with this fuel. In an effort to support the use of hydrogen, a chemochromic sensor has been developed which is robust, simple to use, and does not require active operation. It can be made into a thin film or tape which can be conveniently used for leak detection at unions, valves, or outlets. There are two forms of the sensor, a reversible and an irreversible, allowing a variety of applications based on individual situations. The irreversible sensor is useful during hazardous operations when personnel cannot be present, while the reversible is ideal for monitoring the status of a leak in person or via a camera. Testing the irreversible sensor against environmental effects has been completed and results indicate this material is suitable for outdoor use in the harsh beachside environment of Kennedy Space Center. The environmental testing has led to increased sensitivity of the irreversible chemochromic sensor. In an effort to advance this technology further, this chemochromic sensor will be integrated into a sensor system using an electrical or optical signal.
机译：随着化石燃料供应的减少，氢正成为越来越重要的燃料来源。氢的爆炸极限低，因此在处理这种燃料时应优先进行泄漏检测。为了支持氢的使用，已经开发了一种坚固耐用，易于使用并且不需要主动操作的化学变色传感器。它可以制成薄膜或胶带，可以方便地用于活接头，阀门或出口处的泄漏检测。传感器有两种形式，一种是可逆的，一种是不可逆的，允许根据个人情况进行多种应用。不可逆传感器在危险操作中（人员无法在场时）非常有用，而可逆传感器是监视人员泄漏或通过摄像机泄漏的状态的理想选择。不可逆传感器针对环境影响的测试已经完成，结果表明该材料适合在肯尼迪航天中心恶劣的海滩环境中户外使用。环境测试导致不可逆的化学变色传感器的灵敏度提高。为了进一步推动该技术的发展，将使用电或光信号将该化学变色传感器集成到传感器系统中。

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