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Low current sensitivity and insufficient system robustness are two significant obstacles preventing widespread use of all-fiber current sensors (AFCSs). We demonstrate a novel AFCS
Fiber-optic current sensors have the significant advantages that they are non-conductive and lightweight, which can allow much simpler insulation and mounting designs. In addition, optical
In one of our recent works , we have highlighted the higher sensitivity of evanescent-based fiber sensors over reflection-based sensor
As the core component of inertial navigation systems, fiber optic gyroscope (FOG), with technical advantages such as low power consumption, long lifespan, fast startup speed, and flexible structural
Coupled with the new advances in functional nanomaterials as well as fiber structure design and fabrication in recent years, new solutions continue to emerge to further improve the fiber-optic
This paper provides a method to reduce the demodulation error of sensors with sensitivity nonlinear variation characteristics and reduce the
The problem of improving the metrological characteristics of an attenuator-reflective low-pressure fiber-optic sensor located in narrow cavities with uneven surfaces, in particular, in life
Citations (13) References (11) Abstract Bias error, along with scale factor, is a key factor that affects the measurement accuracy of the fiber-optic current sensor.
Optical fibre-based plasmonic sensors offer several advantages over traditional fibre sensors, such as high sensitivity, miniaturization, remote sensing capabilities, and
We have developed a highly sensitive fiber optic sensor that can measure temperature and pressure. The sensor comprises two Fabry–Perot interferometers (FPIs), FPI 1 and FPI 2,
In this study, we will combine the enhanced VE with the HVE to reduce the difficulty of sensor fabrication while achieving high sensitivity. Two FPIs were constructed using single-mode fiber...
Radiation absorption creates electronic excited states that are trapped by localized defects for extended periods of time. Heating the material enables the trapped states to interact with phonons and decay
Fiber optic sensors are defined as devices that utilize optical fibers to measure a variety of stimuli, including mechanical, thermal, electromagnetic, radiation, chemical, and flow characteristics. They
The fourth method is the optical compensation approach [24, 25]. The Faraday effect-induced bias errors of two polarizations in PM fiber possess opposite polarities, thus they can be canceled out
Measurement accuracy is essential for the all-fiber optic current sensor. Angle errors of axis alignment in the fusion processing affect the measurement accuracy with different modulation and
The influence of reflector losses attracts little discussion in standard treatments of the Fabry–Perot interferometer yet may be an important factor contributing to errors in phase-stepped demodulation
Optical fiber current sensor (OFCS) based on Faraday magneto-optic effect has many advantages of immunity against electromagnetic interference, high sensitivity and wide dynamic range.
Meanwhile, an improved method based on the ellipse fitting of the Lissajous figure is proposed to compensate for the error and improve the signal
Before the experiment, in order to ensure the measurement accuracy and reliability of Fabry-Perot (FP) fiber optic temperature and pressure sensors, it is necessary to analyze the source
This paper presents a fiber-optic parallel Fabry-Perot interferometer (FPI) sensor based on a mismatched structure and vernier effect, which can simultaneously measure strain and
In this paper, we calculate the relation between sensing accuracy and sensitivity-difference and obtain that the enlarged sensitivity difference could improve the sensing accuracy.
A variety of optical fiber gas sensors have been developed for the real-time detection of harmful gases, especially for ammonia, based on Fabry-Perot (FP) cavity , fiber Bragg gratings
Spectral interrogation has been an effective method for fiber-optic Fabry–Perot (F–P) sensors, but it still suffers from low sampling rate, poor dynamic response, and potential jump errors.
In recent years, optical fiber sensors (OFSs) have been widely used in measuring ocean temperature and depth due to their advantages over electrical sensors [6,7].
The fiber-optic angle sensor designed in this study was installed together with the high-precision MK415B Hall angle sensor on the rotating shaft of
Improving the performance of interferometric fiber optic gyroscope (IFOG) in harsh environments, such as magnetic field and temperature field variation, is necessary for its practical applications. This
A high-sensitivity fiber optic temperature sensor based on the enhanced harmonic Vernier effect (HVE) is proposed, which consists of two Fabry–Perot interferometers (FPI) that are
In this paper, we propose a fiber-optic strain and temperature sensor with a highly simplified and cost-effective fabrication process that uses only inexpensive standard optical fibers.