Optical strain gauge comprising a fibre Bragg grating
The invention relates to an optical strain gauge using a glass fibre (1) comprising a Bragg grating (2). The glass fibre is coated with a sheath (3) consisting of polyether ether ketone with an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a...
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| creator | KREUZER MANFRED SCHULZ RUDOLF GUENTHER BERND HAASE KARL-HEINZ RUPPIN HAGEN KIPP TOBIAS MAUL JOCHEN |
| description | The invention relates to an optical strain gauge using a glass fibre (1) comprising a Bragg grating (2). The glass fibre is coated with a sheath (3) consisting of polyether ether ketone with an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a particle size of between 0.08 [mu]m and 12 [mu]m. The outer diameter of the sheath (3) is between 0.2 mm and 1.2 mm. The ratio D/d between the outer diameter D of the sheath (3) and the diameter d of the glass fibre (1) is between 2 and 6. A pressure of the sheath (3) on the glass fibre (1) is such that essentially no relative movement can occur between the glass fibre (1) and the sheath (3). |
| format | Patent |
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The glass fibre is coated with a sheath (3) consisting of polyether ether ketone with an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a particle size of between 0.08 [mu]m and 12 [mu]m. The outer diameter of the sheath (3) is between 0.2 mm and 1.2 mm. The ratio D/d between the outer diameter D of the sheath (3) and the diameter d of the glass fibre (1) is between 2 and 6. 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The glass fibre is coated with a sheath (3) consisting of polyether ether ketone with an admixture of at least 10 weight percent and a maximum of 40 weight percent of an inorganic filler, with a particle size of between 0.08 [mu]m and 12 [mu]m. The outer diameter of the sheath (3) is between 0.2 mm and 1.2 mm. The ratio D/d between the outer diameter D of the sheath (3) and the diameter d of the glass fibre (1) is between 2 and 6. A pressure of the sheath (3) on the glass fibre (1) is such that essentially no relative movement can occur between the glass fibre (1) and the sheath (3).</abstract><oa>free_for_read</oa></addata></record> |
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| language | chi ; eng |
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| subjects | MEASURING MEASURING ANGLES MEASURING AREAS MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS OPTICS PHYSICS TESTING |
| title | Optical strain gauge comprising a fibre Bragg grating |
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