Industry Fiber optic mechanical vibration sensor
Abstract. A novel cantilever-type fiber Bragg grating (FBG) mechanical vibration sensor has been proposed with an excellent sensitivity through the use of the mechanical axial property of a
Industry Simulation and Measurement of Strain Waveform under Vibration
The work is devoted to the consideration of methods for determining the strain of objects using fiber Bragg gratings under a high-frequency vibration or pulsed mechanical action, which is difficult to
Industry Design and analysis of high-frequency fiber Bragg grating vibration
The advantages of this structure in the first-order natural frequency and sensitivity as a fiber-optic vibration sensor are analyzed. The parameters and materials of the accelerometer are
Industry Passively Conducted Vibration Sensing with Fiber Bragg Gratings
We present a sensor for measuring the vibrational frequencies on-site by placing the beam so that it makes physical contact with the vibrating body. The sensor has been tested in the range of 50–200 Hz.
Industry Vibration measurement of electrical machines using integrated
In this paper a method to track the rotating force vector set up within the air-gap of radial flux rotating electrical machines using fibre Bragg gratings is reported. The proposed technique offers the
Industry Design of Vibration Sensor Based on Fiber Bragg Grating
In this paper, a fiber grating vibration sensor which is suitable for vibration monitoring in key areas is designed based on the technical background of vibration monitoring system.
Industry Dual Fiber Bragg Grating Sensor for Vibration Measurement in High
Here, we propose a high-temperature two-parameter fiber Bragg grating (FBG) sensor for monitoring temperature and vibration signals simultaneously. Two sets of cascaded gratings are written onto a
Industry High-Precision distributed fiber optic vibration positioning system
The novelty of this study lies in the integration of incoherent light sources, grating arrays, and pulse coding techniques within a distributed fiber sensing system to detect strain and vibration.
Industry Simulation and Measurement of Strain Waveform under Vibration
The results of measuring gradient strain fields by embedded or mounted point fiber-optic sensors based on Bragg gratings and distributed fiber-optic sensors based on Rayleigh scattering...
Industry High-speed vibration measurement by fiber Bragg gratings with
We developed a high-speed wavelength-swept laser prototype using Fourier domain mode locking (FDML) and a reflection wavelength measuring system that could rapidly measure a fiber Bragg