fiber-optic hydrogen sensor and hydrogen concentration measuring apparatus employing the same

摘要

The present invention relates to a hydrogen sensor and an optical fiber which apply the hydrogen concentration measuring device, and the substrate, the core layer The cladding layer has the length portion was abraded grinding part is inserted into the grinding section be curved to the substrate to be exposed on the upper surface of the substrate and the optical fiber side-polishing type coupled in a direction around a side portion of the substrate, including grinding-polishing type fiber is formed on the upper surface and the reaction including the palladium layer provided to be exposed to the inspection object gas, and the light source to be incident on the optical fiber side-polishing type of input unit extending in an outer side of the substrate, the other surface of the substrate is emitted from the light source analyzing the output light power at the output of the optical fiber side-polishing type extending outwardly to be provided with a detector that detects a hydrogen concentration in the gas in contact with the reaction layer. According to the optical fiber hydrogen sensor and a hydrogen concentration measuring device using it, and provides the advantage of being able to simplify the structure, yet can improve the detection accuracy and sensitivity of the hydrogen concentration.