In this paper, we present a polymer optical fiber (POF) Bragg grating (FBG) to measure liquid level based on Archimides' law of buoyancy. The sensor consists of polymer 3D-printed rods with different radii attached to the fiber terminal containing an FBG....
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In this work, a versatile liquid level sensor using Femtosecond-Laser-Inscribed Fiber Bragg Gratings (high tensile strength) is designed and implemented for accurate measurement of liquid
We propose here a liquid level sensor using a long period fiber grating (LPFG) in which direct liquid level measurement is carried out by utilising an LPFG, 100mm in length and a periodicity of 1mm.
In this paper, we present a fiber sensor using a fiber Bragg grating encapsulated in a half-polymer-filled metal cylinder for measuring liquid level variation. The operating mechanism of this novel design is
Experimental configuration for the Long Period Fiber Grating based liquid level sensor. Transmission spectra of the Long Period Fiber Grating in air,
Recent advancements in fiber optic sensors for liquid level or hydrological-related measurement have garnered significant attention [6, 7, 8, 9,
Optical fiber-based sensors are routinely used for extremely high-precision measurements of various parameters, including length, displacement
A novel ultra-sensitive liquid-level indicator using an etched chirped fiber Bragg grating is experimentally demonstrated with a sensitivity of 1.214
In this paper, we present a polymer optical fiber (POF) Bragg grating (FBG) to measure liquid level based on Archimides'' law of buoyancy. The sensor consists of polymer 3D-printed rods with different
ABSTRACT A highly sensitive liquid level monitoring system based on microstructured polymer optical fiber Bragg grating (mPOFBG) array sensors is reported for the first time. The configuration is based
The performances of two liquid level sensors based on long-period fiber gratings are studied. The long-period gratings (LPGs) have similar characteristics (length and period), but are fabricated with two
Abstract A corrugated surface long period grating (LPG) imprinted on a plastic optical fiber (POF) was proposed as a liquid level sensor. The LPG was fabricated by a simple mechanical die
Abstract A liquid-level sensor based on the refractive-index sensitivity of long-period fiber-optic gratings is proposed and demonstrated. The form of the transmission spectrum of the long-period grating is
The design and packaging of simple, small, and low cost sensor heads, used for continuous liquid level measurement using uniformly thinned (etched) optical fiber Bragg grating
A technique for liquid-level sensors based on a long fiber Bragg grating (FBG) is presented and experimentally demonstrated. The measurement system is based on the measurement of the central
This paper presents the development and assessment of two types of Long Period Fiber Grating (LPFG)-based sensors including a mobile liquid
Obtained results pave the way for the exploitation of the proposed platform for accurate liquid level monitoring in large-scale storage tanks, useful both for petrochemical industry and for
In order to measure the change of liquid level near the warning value, a new optical fiber fusion splicer was used to fabricate a fiber optic sensor for measuring liquid level based on long-period fiber grating
We describe a fiber-optic system to measure the liquid level inside a container. The technique is based on the extraction of the temperature profile of the fiber by using a fiber Bragg grating (FBG) array.
We describe a fiber-optic system to measure the liquid level inside a container. The technique is based on the extraction of the temperature profile of
The article deals with the use of intensity-based fiber optic sensors for the level measurement. Two types of optical fiber sensors have been tested. In
In this paper an intensity liquid level sensor based on a single-mode—no-core—single-mode (SMS) fiber structure together with a Bragg grating inscribed in the later single mode fiber is...
This study is proposed for obtaining simultaneous measurements of the level and specific gravity of a liquid using a dual-optical-fiber-sensor system
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