Pub Date : 2023-12-28DOI: 10.24425/opelre.2023.148992
A. Kurzych, L. Jaroszewicz
Vibration is a ubiquitous phenomenon that occurs in everyday life and people are exposed to it almost all the time. Most often, vibration is measured using electromechanical devices such as piezoelectric, piezoresistive, or capacitive accelerometers. However, attention should be paid to the limitations of such vibration sensors. They cannot operate in the presence of strong electromagnetic fields. Measurements with electromechanical devices require physical contact between the sensor and the vibrating object, which is not always possible due to the design of the sensor and device. The possibility of a non-contact vibration measurement in harsh environments is provided by the technology of interferometric fibre optic sensors. This paper reports the principle of operation, design aspects, experimentation, and performance of a Mach-Zehnder interferometric setup for the measurement of vibration frequency. There are different sensing arms implemented in the interferometer: single-mode, polarization-maintaining, and tapered optical fibre. The paper emphasises the simplicity of the set-up structure and the detection capabilities based on the interferometric sensing giving the possibility of constructing a commercial vibration sensor for all industry demands.
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Pub Date : 2023-12-06DOI: 10.24425/opelre.2024.148831
A. Janaszek, Piotr Wróbel, Maciej Dems, O. Ceylan, Yasar Gurbuz, Ł. Kubiszyn, Józef Piotrowski, Rafał Kotyński
Abstract
摘要。
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