This paper describes optical fiber-based velocity measurement in the velocity range of approximately 0–7 m/s with an error of approximately 10% compared to a hot wire anemometer and a new method for...
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TL;DR: This work presents an overview of progress and developments in the field of fiber optic sensor technology, highlighting the major issues underpinning recent research and illustrating a
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterized by its ability to measure displacements along a millimetric range with sub-micrometric
This paper describes optical fiber-based velocity measurement in the velocity range of approximately 0–7 m/s with an error of approximately 10% compared to a hot wire anemometer and
This works because flow velocity and fluid viscosity directly translate to a shear stress and consequently to a tensile strain on the fiber optic cable. Using the technology of fiber-optic distributed
An integrated interferometric fiber optic velocimetry sensor has been proposed and demonstrated at the central wavelength of 638 nm. The sensor is
A fiber-optic sensor for distance and velocity measurements is described which is based on dynamic properties of speckles formed by two illuminating laser beams. This sensor is composed of two
To address these issues, this study employs distributed optical fiber sensors (DOFSs) for measuring flow velocity in water-filled pipes, and the effectiveness is validated by the fiber Bragg grating (FBG)
Inspired by the exceptional hydrodynamic properties of seal whiskers, we develop a biomimetic streamlined optical fiber flow velocity sensor.
Three velocity measurement experiments are carried out to measure the velocity, and the experimental data shows that the velocity increases linearly
The influence of different sensor layouts of the distributed optical fibers on the monitoring data is also carefully checked, and the testing results show that bonding the optical fiber on the pipes can
The comparison between modeling and experimental results shows the appropriateness of the eddy current speed sensor for the speed
By using a different scheme to perform the Sagnac interferometer with the probe in momentum space, we have demonstrated the new weak measure protocol to detect the linear
Abstract and Figures An extensive review of optical fiber sensors and the most beneficial applications is presented in this chapter.
The paper presents an approach to noninvasively measure pulse wave delay and velocity by means of two multiplexed fiber-optic Fabry-Perot
In this work, optical fiber Bragg grating sensors were used to measure water velocity and examine how it was distributed in open channels. Several types of coatings were incorporated into the
We put forward a new fiber optic sensor for measuring linear velocity with picometer/second sensitivity with weak-value amplification based on generalized Sagnac effect
In this work, FBG fiber optic sensors for measuring water velocity using two different coatings were theoretically analyzed and experimentally developed, one of which was especially hardened to
communication system via using fiber optics there was a great demand to measure and sense the rate of data transmission, change in phase, intensity, and wavelength and in the case of incentive
A fiber-optic cable as flow sensor introduces the opportunity to build a several meter long distributed flow sensor for boreholes and other flow-measurement applications.
To conduct experimental studies of a fiber-optic system for measuring the fluid flow velocity, a methodology for conducting experimental studies of mock-up samples has been developed.
A sensitive fluid viscosity and flow measurement device using optical intensity based sensing is presented. The sensing principle makes use of the damping characteristic of a vibrating
Our results show our scheme with weak-value amplification is effective and feasible to detect linear velocity with pico meter/second sensitivity
We have developed a new method for measuring temperature and velocity at a high spatial resolution (minimum 2.56 mm pitch along an optical
The paper presents an approach to noninvasively measure pulse wave delay and velocity by means of two multiplexed fiber-optic Fabry-Perot interferometric sensors interrogated by means of spectral
We present here the recent advance in exploring new detection mechanisms, materials, processes, and applications of fiber optic sensors. Keywords: fiber optic sensors, detection mechanisms, materials,
This article presents a fiber-optic method for measuring the velocity of a liquid flow, taking into account the flow direction. The proposed method is based on the use of an optical fiber with an