Fiberoptic active chemical sensor and fabrication method of the same.

摘要

A chemical active optical fibre sensor for measuring a given magnitude of a fluid, comprises a chemical reactant suitable for the measurement and capable of reacting with the fluid, a device (20a, 28) for supporting the reactant and a single optical fibre (20) for sending light on the reactant and recovering light sent back by the reactant. The improvement is that the supporting device comprises a film (28) of vinylimidazole (co)polymer in which the reactant is immobilised. Also claimed is prepn. of the sensor.