Optical fiber sensing device for analysis
First Claim
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1. A sensing device for quantitative determination of the chemical properties of a medium in situ, said device comprising at least one glass optical fiber means having a porous fused glass tip, said fused glass tip being treated after fusing with heat, alkali and acid to render it porous internally.
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Abstract
A sensing device for use in the manufacture of an optic probe apparatus for quantitative determination of the chemical properties of a medium in situ includes at least one glass optical fiber.
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19 Claims
- 1. A sensing device for quantitative determination of the chemical properties of a medium in situ, said device comprising at least one glass optical fiber means having a porous fused glass tip, said fused glass tip being treated after fusing with heat, alkali and acid to render it porous internally.
- 11. Apparatus for quantitative determination of the chemical properties of a medium in situ, which comprises as an optic probe a sensing device which comprises at least one glass optical fiber means including an internally porous glass tip which has been obtained by converting a substantially non-porous glass tip fused thereto and which has on the internal surface of the pores thereof at least one substance selected from the group consisting of fluorescent and other light sensitive substances.
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19. Apparatus for quantitative determination of the chemical properties of a medium in situ, which comprises as an optic probe a sensing device which comprises at least one fused silica optical fiber means including an internally porous glass tip which has been obtained by converting an internally substantially non-porous glass tip fused thereto and which has on the internal surface of the pores thereof at least one substance selected from the group consisting of fluorescent and other light sensitive substances.
Specification