Patent classifications
G
PHYSICS
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G01
MEASURING; TESTING
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G01L
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
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1/00
Measuring force or stress, in general
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G01L1/24
by measuring variations of optical properties of material when it is stressed, e.g. by photoelastic stress analysis; using infrared, visible light, ultraviolet
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G01L1/242
the material being an optical fibre
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G01L1/246
using integrated gratings, e.g. Bragg gratings
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