FIELD: measuring technology.
SUBSTANCE: invention relates to measuring technology, namely to the study and creation of sensitive elements of spectral sensors and converters of physical quantities. On an elastic element in the form of a beam made of a material with a positive value of the temperature coefficient of expansion, an additional structural element is fixed: a thermosensitive element made of a material with a negative value of the temperature coefficient of expansion. The assembly is heated to the set temperature. The Bragg fiber lattice is fixed with the help of a fixing material in such a way that it is fixed at one end on an elastic element, and at the other end on an additional structural element: a thermosensitive element. The assembly is cooled. By means of temperature elongation of the thermosensitive element, when it cools down, the Bragg fiber lattice is stretched to a predetermined value of relative elongation.
EFFECT: expansion of the arsenal of methods for stretching the Bragg fiber lattice to a given value of relative elongation.
1 cl, 1 dwg
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