Yu. N. Kulchin, R. V. Romashko, O. T. Kamenev, Yu. S. Petrov, A. O. Kamenev
{"title":"用于地震信号记录的光纤干涉式水平加速度计","authors":"Yu. N. Kulchin, R. V. Romashko, O. T. Kamenev, Yu. S. Petrov, A. O. Kamenev","doi":"10.3103/S1541308X25700074","DOIUrl":null,"url":null,"abstract":"<p>A high-sensitivity fiber-optic interferometric horizontal accelerometer using passive phase demodulation is proposed and demonstrated. The principle of sensitivity improvement using multiturn optical fiber coil as a horizontal sensing element is described. A fiber-optic 3 × 3 splitter is used as a phase demodulator. The optical responsivity for the frequencies below the resonance was found to be equal 1770 rad/g. Accelerations as small as 0.16 μg at 55 Hz have been detected. The noise level of a fiber-optic accelerometer was compared with a piezoelectric accelerometer. The intrinsic noise level of the fiber-optic accelerometer is lower than that of the piezoelectric accelerometer and provides an opportunity to detect accelerations down to 5 × 10<sup>–8</sup> g. Operating frequency band is 10 to 130 Hz.</p>","PeriodicalId":732,"journal":{"name":"Physics of Wave Phenomena","volume":"33 2","pages":"127 - 130"},"PeriodicalIF":1.1000,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Fiber-Optic Interferometric Horizontal Accelerometer for Seismic Signals Recording\",\"authors\":\"Yu. N. Kulchin, R. V. Romashko, O. T. Kamenev, Yu. S. Petrov, A. O. Kamenev\",\"doi\":\"10.3103/S1541308X25700074\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>A high-sensitivity fiber-optic interferometric horizontal accelerometer using passive phase demodulation is proposed and demonstrated. The principle of sensitivity improvement using multiturn optical fiber coil as a horizontal sensing element is described. A fiber-optic 3 × 3 splitter is used as a phase demodulator. The optical responsivity for the frequencies below the resonance was found to be equal 1770 rad/g. Accelerations as small as 0.16 μg at 55 Hz have been detected. The noise level of a fiber-optic accelerometer was compared with a piezoelectric accelerometer. The intrinsic noise level of the fiber-optic accelerometer is lower than that of the piezoelectric accelerometer and provides an opportunity to detect accelerations down to 5 × 10<sup>–8</sup> g. Operating frequency band is 10 to 130 Hz.</p>\",\"PeriodicalId\":732,\"journal\":{\"name\":\"Physics of Wave Phenomena\",\"volume\":\"33 2\",\"pages\":\"127 - 130\"},\"PeriodicalIF\":1.1000,\"publicationDate\":\"2025-05-26\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Physics of Wave Phenomena\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1541308X25700074\",\"RegionNum\":4,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"PHYSICS, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Physics of Wave Phenomena","FirstCategoryId":"101","ListUrlMain":"https://link.springer.com/article/10.3103/S1541308X25700074","RegionNum":4,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"PHYSICS, MULTIDISCIPLINARY","Score":null,"Total":0}
Fiber-Optic Interferometric Horizontal Accelerometer for Seismic Signals Recording
A high-sensitivity fiber-optic interferometric horizontal accelerometer using passive phase demodulation is proposed and demonstrated. The principle of sensitivity improvement using multiturn optical fiber coil as a horizontal sensing element is described. A fiber-optic 3 × 3 splitter is used as a phase demodulator. The optical responsivity for the frequencies below the resonance was found to be equal 1770 rad/g. Accelerations as small as 0.16 μg at 55 Hz have been detected. The noise level of a fiber-optic accelerometer was compared with a piezoelectric accelerometer. The intrinsic noise level of the fiber-optic accelerometer is lower than that of the piezoelectric accelerometer and provides an opportunity to detect accelerations down to 5 × 10–8 g. Operating frequency band is 10 to 130 Hz.
期刊介绍:
Physics of Wave Phenomena publishes original contributions in general and nonlinear wave theory, original experimental results in optics, acoustics and radiophysics. The fields of physics represented in this journal include nonlinear optics, acoustics, and radiophysics; nonlinear effects of any nature including nonlinear dynamics and chaos; phase transitions including light- and sound-induced; laser physics; optical and other spectroscopies; new instruments, methods, and measurements of wave and oscillatory processes; remote sensing of waves in natural media; wave interactions in biophysics, econophysics and other cross-disciplinary areas.