SENSOR AND METHOD OF MEASUREMENT Russian patent published in 2016 - IPC G01L1/24 G01D5/353 G01M11/08 G01M11/00 

FIELD: measurement equipment.

SUBSTANCE: invention relates to the field of optical measurements and relates to the method and sensor for measurement of temperature and mechanical stresses. Measurements are carried by a sensor, which comprises the first path of optical radiation propagation, which is configured for interaction with the structure, properties of which must be measured; the second path of propagation of optical radiation, which is configured for interaction with the structure, properties of which must be measured; the third path of optical radiation propagation. Besides, the sensor comprises a facility to amplify a signal, which propagates along the third path of optical radiation propagation so that the signal amplifies before it starts propagation along the second path of optical radiation propagation, and the facility to prevent propagation of signals from the second path of optical radiation propagation into the third path of optical radiation propagation.

EFFECT: increased accuracy and distance of measurements.

15 cl, 7 dwg