Abstract
A simple, low-cost spectrometric system for non-destructive quantitative measurement of water vapour density enclosed in halogen lamp bulbs has been developed using a near-infrared semiconductor laser system. A working curve was successfully obtained using a temperature stabilized, perturbed-injection-current near-infrared semiconductor laser system. A minimum detectable water vapour density as low as several tens of ppm with good reliability has been confirmed.
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Suzuki, T. Development of non-destructive quantitative measurement system of water vapour density enclosed in halogen lamp bulbs. Optical and Quantum Electronics 29, 933–937 (1997). https://doi.org/10.1023/A:1018585802101
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DOI: https://doi.org/10.1023/A:1018585802101