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Hamamatsu Corp. - Earth Innovations LB 2/24

Fiber Optic Sensor Gauges Steel Volatility

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The process of welding adds diffusible hydrogen to steel, causing embrittlement of the weld. The steel could even explode if concentrations get too high. Although scientists have been detecting hydrogen with volumetric displacement since 1950 and with gas chromatography more recently, Rodney D. Smith II and his colleagues have developed a detection method based on fiber optics.    Smith conducted the research for his doctoral thesis but has since been hired by DCH Technology to continue his work. Unlike previous techniques, the fiber optic sensor can be attached directly to steel, and the...Read full article

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    Published: March 2000
    industrialNews & FeaturesSensors & Detectors

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