State-of-the-art methods for determining the frequency shift of Brillouin scattering in fiber-optic metrology and sensing

AI Krivosheev, FL Barkov, YA Konstantinov… - Instruments and …, 2022 - Springer
This review describes state-of-the-art software and hardware methods for detecting the
frequency shift of a stimulated and spontaneous Brillouin scattering spectrum for the needs …

Research on high precision optical fiber acoustic emission system for weak damage location on concrete

S Miao, L Gao, F Tong, Y Zhong - Construction and Building Materials, 2022 - Elsevier
A high precision optical fiber acoustic emission (AE) locating system with designed random
fiber lasers (RFLs) and a proposed adaptive time of arrival extraction strategy for weak …

− 252.8° C Liquid Hydrogen Acoustic Emission Experiment in Simulated Aerospace Fuel Tank

J Lv, P Zhao, P Wei, H Yuan… - IEEE Transactions on …, 2023 - ieeexplore.ieee.org
With the increase of space activities, the safety detection of equipment in supercold
environment becomes more and more important. However, the safety detection of …

Locating acoustic emission signals due to shock impacts on a carbon fiber sample using piezoelectric and fiber optic sensors

LN Stepanova, SI Kabanov, VV Chernova - Russian Journal of …, 2022 - Springer
Comparative tests related to locating acoustic emission (AE) signals due to shock impacts
on a T700 carbon fiber sample were carried out. Piezoelectric acoustic emission transducers …

Strategies for extracting damage induced ae signals from different type noise-like backgrounds for carbon-fibre reinforced polymers

I Panteleev, A Prokhorov, O Plekhov - Applied Sciences, 2021 - mdpi.com
This paper presents an algorithm for isolating a useful acoustic signal (corresponding to
damage accumulation) against the background of a signal used to model the performance of …

IDENTIFICATION OF THE IMPACT POSITION IN A REINFORCED CONCRETE STRUCTURE BASED ON THE ANALYSIS OF THE RESPONSE OF VIBRATION …

RV Tsvetkov, IN Shardakov, IO Glot… - PNRPU Mechanics …, 2022 - ered.pstu.ru
The article presents the results of an experiment to study the vibration response of a large-
scale reinforced concrete model structure to an impulse load. The load was a series of …

[PDF][PDF] Малоракурсная акустическая томография композитных материалов: диссертация на соискание учёной степени кандидата технических наук: спец …

Ч Цзянлэй - 2021 - earchive.tpu.ru
С развитием современной промышленности, металлические материалы и сплавы,
используемые ранее, становятся все менее пригодными для удовлетворения …

ВЕСТНИК ПЕРМСКОГО НАЦИОНАЛЬНОГО ИССЛЕДОВАТЕЛЬСКОГО ПОЛИТЕХНИЧЕСКОГО УНИВЕРСИТЕТА. МЕХАНИКА

РВ Цветков, ИН Шардаков, ИО Глот, ГН Гусев… - ВЕСТНИК ПЕРМСКОГО … - elibrary.ru
Представлены результаты эксперимента по исследованию вибрационного отклика
крупномасштабной железобетонной модельной конструкции на импульсную ударную …