Fibre-optic probe for measuring e.g. fluorescence, scattering or Raman effect in solid, liquid and gaseous material

摘要

The fibre optic probe contains one or more optical fibres (1) to illuminate the material with radiation (5) in the band 200 nm. to 5 um. One or more optical fibres are used to detect the scattered or fluorescent radiation. The probe also has an opaque protective sleeve (3) and a transparent window (4) in the form of a concentric meniscus. The transmit and receive paths may be by concentric fibres (1,2) or by concentrically arranged multiple fibres.