| 摘要 |
An optical sensor (1) for in-situ monitoring of chloride ion concentration in concrete structures, the sensor (1) comprising: a sensor body (3) that fluoresces when illuminated by light, the sensor body (3) being configured to exhibit a change in fluorescence when illuminated in the presence of chloride ions, and means (5) for optically coupling said sensor body to a source of illumination. A system (11) is also disclosed, along with methods of synthesising chloride sensitive polymerisable fluorescent dyes, and chloride sensitive polymerisable fluorescent dyes.
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