Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Shenglai Zhen"'
Publikováno v:
Photonic Sensors, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract In this paper, a dual Mach-Zehnder interferometer for measuring both temperature and strain is proposed and verified by experiments. The sensor configuration involves cascading a four-core fiber and a double-clad fiber between two single-mod
Externí odkaz:
https://doaj.org/article/3c48b9d667dd417d8c615e8038e09203
Publikováno v:
Sensors, Vol 23, Iss 20, p 8411 (2023)
Laser Doppler velocimetry (LDV) based on a differential laser Doppler system has been widely used in fluid mechanics to measure particle velocity. However, the two outgoing lights must intersect strictly at the measurement position. In cross-interfac
Externí odkaz:
https://doaj.org/article/de0df6dfdb774a0a97fc6e9eb2e778b8
Publikováno v:
IEEE Photonics Journal, Vol 9, Iss 1, Pp 1-10 (2017)
Phase-sensitive optical time domain reflectometry Φ-OTDR has been widely used in vibration sensing applications due to its high sensitivity and distributed sensing capability. However, the real vibration behavior is hard to be distinguished from amb
Externí odkaz:
https://doaj.org/article/b759285ac6964e87bddaa77b18b64e01
Publikováno v:
IEEE Photonics Journal, Vol 7, Iss 3, Pp 1-8 (2015)
We present a remote low-coherence fiber vibrometer, which is composed of a hybrid configuration of Mach-Zehnder and Sagnac interferometer. In the interferometer, the signal and reference beams travel along the same path but in opposite directions. Ow
Externí odkaz:
https://doaj.org/article/a68067feca5341c08a32c74cf1d0f844
Autor:
Chenchen Yin, Zhigang Cao, Zhao Zhang, Tao Shui, Rui Wang, Jian Wang, Liang Lu, Shenglai Zhen, Benli Yu
Publikováno v:
IEEE Photonics Journal, Vol 6, Iss 4, Pp 1-9 (2014)
A fiber Fabry-Perot interferometer (FPI) based on a bubble-expanded microcavity is investigated in this paper. Due to the expanded bubble microcavity, the FPI exhibits high strain sensitivity of 30.66 pm/με. To the best of our knowledge, such strai
Externí odkaz:
https://doaj.org/article/d38750ecf9104989bf091669786e31b4
Publikováno v:
Second International Conference on Electronic Information Engineering and Computer Communication (EIECC 2022).
Publikováno v:
Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022).
Publikováno v:
Seventh Symposium on Novel Photoelectronic Detection Technology and Applications.
Laser Doppler Velocimetry (LDV) has been widely used for many years in fluid mechanics to measure particle velocity. However, the signal of LDV is weaker in most applications. One challenging issue is how to effectively discover the weak characterist
Publikováno v:
2020 International Conference on Optoelectronic Materials and Devices.
The deep-sea hydrothermal velocity measurement system based on laser Doppler is mainly used for in-situ accurate measurement of deep-sea hydrothermal velocity. Due to the high-pressure environment of the deep-sea hydrothermal area, the optical window
Publikováno v:
Journal of Physics: Conference Series. 2246:012084
In this paper, several improved convolutional recurrent networks (CRN) are proposed, which can enhance the speech with non-additive distortion captured by fiber-optic microphones. Our preliminary study shows that the original CRN structure based on a