Although the state-of-the-art fiber optic shape sensing mechanisms can provide sub-millimeter spatial resolution for off-axis strain measurement and
Here, a novel approach is presented that utilizes a fiber-integrated microscale coil at the fiber tip to generate a localized uniaxial magnetic field. The same fiber-tip coil is used in parallel for
Here, the authors demonstrate a blind and sparse near-field array signal processing approach to enhance the measurement quality of fibre-optic distributed acoustic sensors. It further
To enable the detection of marine magnetic field vector information, we propose an optical fiber vector magnetic field sensor that integrates three single-axis sensors in an orthogonal configuration.
In this paper, we propose an all-fiber vector magnetic field sensor with a relatively simple process and good adaptability to environmental temperature and vibration. The sensor consists of a
The latter is a challenging feature as, usually, optical fiber-based bending sensors are only sensitive to few directions, which restricts their functionality.
We propose and demonstrate a compact and simple vector bending sensor capable of distinguishing any direction and amplitude with high accuracy. The sensor consists of a short
Abstract This study introduces a high-resolution optical fiber underwater acoustic sensor utilizing a Fabry-Perot (FP) interferometer design. The sensor consists of a single-mode fiber (SMF)
This review provides a comprehensive overview of magneto-sensitive coating material-based interfacing technologies, including composite fiber-optic magnetic field sensors, and a
Distributed fiber-optic vibration sensors receive extensive investigation and play a significant role in the sensor panorama. Optical parameters such as
In this paper, a simple and low cost optical fiber sensing technology by using loop transmission polarization detection and cross-correlation algorithm for long distance vibration
A deep-learning-assisted fiber-optic sensor was proposed for simultaneous measurement of temperature and vector magnetic field. The sensor employs an asymmetric structure to generate distinct spectral
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Different from the conventional piezoelectric-type vector hydrophone, the FOVH shares the same merits with the fiber optic sensors, while it has some
Many countries especially China have developed a variety of vector hydrophones based on different mechanisms, e.g. moving-coil, velocity, piezoelectric (vibrating), piezoresistive and fiber
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Abstract: A kind of compact fiber optic vector magnetic field sensor is proposed. This sensor features a highly localized eccentric point-by-point fiber Bragg grating as its core component,
This paper proposed a vector magnetic field sensor based on an open-cavity Mach-Zehnder interferometer filled with magnetic fluid. The micro-cavity MZI is fabricated by splicing single
Instrumentation, Measurement, and Optical Sensors Ultra-high-temperature sensing using fiber grating sensor and demodulation method based on support vector regression optimized
In this work, an envelope-fitting-free, peak-recognition-based optical Vernier method is proposed to demodulate fiber optic vector bend sensors for high-sensitivity bend measurement.
Femtosecond laser auto-positioning direct writing of a multicore fiber Bragg grating array for shape sensing Xunzhou Xiao, Baijie Xu, Xizhen Xu, Bin Du, Ziyong
Several scalar and vector magnetometers have been proposed in the recent past by exploiting the coating of magneto-optical materials like yttrium iron garnet, silk fibroin hydrogel, Fe 3
A subtype of fiber-optic microphone uses a Fabry-Pérot interferometer as the sensing element. In these sensors, two partially reflective mirrors form an optical
Here, we demonstrate a kilometer-scale optomechanical sensor network, integrating multiple fiber-optic optomechanical sensors into a standard
We propose and demonstrate a novel high-temperature-resistant vector accelerometer, consisting of a ring cavity laser and sensing probe (i.e.,
A fiber optic intrusion sensor with the configuration of an optical time-domain reflectometer using coherent interference of Rayleigh backscattering. In
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A kind of bent multimode fiber (MMF) vector magnetic sensor based on surface plasmon resonance (SPR) was proposed. By plating gold film on the
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