| 摘要 |
An intrinsically safe fiber optic hydrogen sensing assembly for detecting hydrogen levels in a system and/or for detecting hazardous hydrogen concentration gas leaks therefrom is disclosed. The sensor assembly preferably uses a palladium coated end of the fiber optic cable as the hydrogen sensor based upon the intensity and phase of the light reflecting off of the coated end. The assembly may be constructed to control the flow of hydrogen to the system and/or to sound an alarm indicative of leakage of hydrogen from the system.
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