| 摘要 |
PROBLEM TO BE SOLVED: To provide a leakage detector capable of measuring fluorescence emitted from a detected object such as oil at high SN and detecting the leakage from an inspected object, even in an environment of noise light that cannot shield illumination, sunlight or the like, for example the outside of a building or the like. SOLUTION: The leakage detector includes a radiating means 2a for radiating a laser beam of linear polarization to the inspected body, a polarization selecting means 5 for selecting and observing polarization of polarized fluorescence to the polarized fluorescence emitted by laser beam radiation of the linear polarization by the radiating means, a spectroscopy means 6 for selecting and observing wavelength of the polarized fluorescence with respect to the polarized fluorescence whose polarization is selected, and imaging means 7a and 7b for picking up the image of the polarized fluorescence whose polarization and wavelength are selected, and imaging and detecting the leakage. COPYRIGHT: (C)2007,JPO&INPIT
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