title: Ð Ð°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° Ð¼ÐµÑÐ¾Ð´Ð¾Ð² ÑÐ°ÑÑÐµÑÐ° Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² ÑÐ¸Ð³Ð½Ð°Ð»Ð¾Ð² Ð² Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾-Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¸Ð½ÑÐµÑÑÐµÑÐ¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ñ Ð¸Ð·Ð¼ÐµÑÐ¸ÑÐµÐ»ÑÐ½ÑÑ ÑÐ¸ÑÑÐµÐ¼Ð°Ñ Ñ Ð¼ÑÐ»ÑÑÐ¸Ð¿Ð»ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
title: Ð½Ð°ÑÑÐ½ÑÐ¹ Ð´Ð¾ÐºÐ»Ð°Ð´
titleType: Subtitle
title: Development of methods for calculating signal parameters in fiber-optic interferometric measurement systems with multiplexing of sensitive elements
Creators: name: ÐÐ¾ÑÑÑÐ¾Ð¼Ð¸ÑÐ¸Ð½, ÐÐ»ÐµÐºÑÐµÐ¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2020
Subjects: ÐÐ°ÑÑÐ¸ÐºÐ¸ Ð²Ð¾Ð»Ð¾ÐºÐ¾Ð½Ð½Ð¾-Ð¾Ð¿ÑÐ¸ÑÐµÑÐºÐ¸Ðµ
ÐÐ½ÑÐµÑÑÐµÑÐ¾Ð¼ÐµÑÑÑ
ÐÐµÐ½ÐµÑÐ°ÑÐ¾ÑÑ ÐºÐ²Ð°Ð½ÑÐ¾Ð²ÑÐµ
Ð­Ð»ÐµÐºÑÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ¸Ð³Ð½Ð°Ð»Ñ
Ð¼ÑÐ»ÑÑÐ¸Ð¿Ð»ÐµÐºÑÐ¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ ÑÑÐ²ÑÑÐ²Ð¸ÑÐµÐ»ÑÐ½ÑÑ ÑÐ»ÐµÐ¼ÐµÐ½ÑÐ¾Ð²
ÑÐ°ÑÑÐ¾ÑÐ½ÑÐµ ÑÑÐ¼Ñ Ð»Ð°Ð·ÐµÑÐ°
Ð¸Ð½ÑÐµÑÑÐµÑÐµÐ½ÑÐ¸Ð¾Ð½Ð½ÑÐ¹ ÑÐ¸Ð³Ð½Ð°Ð»
multiplexing of sensitive elements
laser frequency noise
interference signal

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description: Fiber-optic interferometric sensors of physical quantities are becoming more widespread and are actively used in various fields of industry and instrumentation, as well as for scientific experiments. In many cases, it is necessary to perform distributed measurements, in which information about the measured impact must be collected and processed using a large number of sensors. For example, in hydroacoustic antennas, where a large number of hydrophones are used. One of the promising approaches for solving this problem is the use of fiber-optic measurement systems with multiplexing of sensitive elements. However, to improve the performance of such measurement systems, it is necessary to know the relationship between the parameters of individual elements and the system as a whole. This work is devoted to solving this problem. A new method for calculating the power of optical signals from multiplexed circuits is proposed. An example of one scheme shows the calculation procedure using the proposed method. The results of the analysis of the dependence of the relative power of the interference signal on the number of sensitive elements in the optical circuit are presented. To measure the frequency noise of lasers, a new method is proposed with the formation of an interference signal at a subcarrier frequency. A comparison of the frequency noise measurement result obtained using the new method with the frequency noise spectrum provided by the laser manufacturer was performed, which showed a good match. The results of this work can be used in the development of new measurement systems based on fiber-optic sensors with multiplexing of sensitive elements.