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Scientists created sensors on the erbium doped fiber basis

Scientists created sensors on the erbium doped fiber basis

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Photo: misis.ru

Date : Aug 16, 2017 03:23 PM

It will help to avoid accidents at NPP, in mines and spacecrafts

Scientists from National University of Science and Technology (MISiS) developed technology for creating highly-precise sensors on the basis of erbium doped fiber. There rare-earth and transition metals were added. The composition and proportions of chemical additives in quartz-based fibers are original, therefore they provide unique properties of the material. It is expected that devices based on it will be in demand in construction, geotechnics, aerospace, oil and gas industry and in nuclear energy.

Alexander Kiryanov — the project manager, professor of the Semiconductor Electronics and Physics Department MISiS — explains, that the optical fiber sensor can be either point device or spatially distributed circuit, which is able to collect information on parameters at large distances. The entire length of the fiber is a sensitive element in the «long sensor» format.

«Our research is aimed at the creation and application of the second type sensors with the usage of specially developed doped fibers.These fibers are obtained with the method of nano engineering, — Alexander Kiryanov says, — Such fibers can become a reliable solution in work in aggressive environments, when the device based on them function in extreme conditions. For example, thermomonitoring of oil wells or radiation dosimetry at NPP».

In near-earth orbit sensors based on erbium doped fiber will measure the state of the background radiation in a spacecraft and detect surface defects. They can register radiation, ultra-high temperatures — up to 1700°C (3092° F) — and electromagnetic fields within small limits. Due to the length of the fiber, it is really possible to carry out such remote measurements as monitoring the state of a deep oil well, a mine, a pipe line and nuclear power plant units.

New fiber-optic material creation project is an example of a successful international collaboration. The fiber composition was developed and tested in MISiS and in the Center for Optical studies in Mexico. Whereas developmental prototypes were produced in India, in the Research Institute of Ceramics and Glass. The results of scientific work are published in Laser Physics Letters.

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