Equipment |Fiber Optic Oxygen Sensors

Fiber Optic Oxygen Sensors

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Fiber Optic Oxygen Sensors use a fluorescence method to measure the partial pressure of dissolved or gaseous oxygen. Optical fiber carries excitation light produced by the Blue LED to the thin-film coating at the probe tip. Fluorescence generated at the tip is collected by the probe and carried by the optical fiber to the high-sensitivity spectrometer. When oxygen in the gas or liquid sample diffuses into the thin-film coating, it quenches the fluorescence. The degree of quenching correlates to the level of oxygen pressure.