METHOD TO MEASURE TEMPERATURE OF POLYMER COATING OF FIBRE LIGHT GUIDE

摘要

FIELD: measurement equipment.SUBSTANCE: method to measure temperature of a polymer coating of a fibre light guide consists in calibration of a device by external heating of optic fibre and measurement of dependence of resonant frequency of amplitude-frequency characteristic of an oscillating circuit from temperature measured by a thermal controller. Temperature of polymer coating during distribution of radiation in optic fibre is determined with the help of comparison of a shift of resonant frequency of the oscillating circuit with calibration coefficients. This method makes it possible to measure temperature of a polymer shell of optic fibre under conditions of optical radiation passage, and also in other polymer thread-like structures.EFFECT: increased accuracy to determine temperature of a polymer coating of a fibre light guide.5 dwg