DEVICE FOR MEASURING THE LINE INTEGRAL OF A LOCAL VARIABDEVICE FOR MEASURING THE LINE INTEGRAL OF A LOCAL VARIABLE QUANTITY TO BE MEASURED LE QUANTITY TO BE MEASURED

摘要

In order to measure the line integral of a locally variable measurement quantity along a measurement path, an optical fibre whose optical properties, e.g. refractive index, are influenced by the measured quantity is laid along the measurement path. Measures for suppressing the influence of interference are specified in common with some advantageous applications.