Deformation Measurement Sensor Operating In A Hostile Environment And Including An Optical Movement Measurement Module, And Measurement System Using Said Sensor

摘要

Deformation measurement sensor operating in a hostile environment and including an optical movement measurement module, and measurement system using said sensor.;The sensor includes: an enclosure comprising an opening a movable element having a first surface that is brought into contact with an object that can deform, for example a nuclear fuel rod, and a second surface that is reflective and extends into the enclosure through the opening; a sealed, resilient connecting component performing a return function between the element and the enclosure; and, inside the enclosure, a module for creating an interference light using a light reflected by the second surface of the element. Deformation of the object results in a modification to the interference light that is representative of the deformation.

主权项

1. Deformation measurement sensor, capable of operating in a hostile environment comprising:
an enclosure, comprising an opening, a movable element that has opposite first and second surfaces and which can be moved with respect to the enclosure along a first axis meeting the first and second surfaces, the first surface being intended to be brought into contact with an object liable to deform, the second surface being capable of extending into the enclosure through the opening thereof and reflecting an incident light, a sealed, resilient connecting component, performing a return function between the movable element and the enclosure, and an optical module, placed inside the enclosure, for creating an interference light along a second axis which is not parallel to the first axis, using an auxiliary light reflected by the second surface of the movable element, such that a deformation of the object results in a modification of the interference light, representative of the deformation.