The correlation function between power-output and object displacement is analyzed theoretically by Gaussian electromagnetic beam approximation and characterize the dynamic range sensor 4 mm (with line...
Of particular interest here, fiber optic displacement sensors have gained wide interest and have evolved from basic intensity modulation-based configurations to more advanced structures,
Fiber optic displacement sensor using multimode fiber coupler based on intensity modulation has been demonstrated. In general, both theoretical and experimental results agree each other.
Finally, the feasibility of the sensor was verified by calibration experiment and soil shear experiment. The results show that the displacement sensor has high sensitivity and accuracy, and
Here, we present a comprehensive analytical model for multi-axis tilt sensing based on intensity-modulated optical fiber sensors (OFDSs).
This study investigates the application of BOFDA distributed optical fiber sensing technology in static load testing of cast-in-place pile foundations to
For example, Liehr and Krebber reported the operation of a fibre-optic-displacement sensor based on incoherent optical frequency domain reflectometry (OFDR) to measure length
Optical Fiber Displacement Sensors (OFDSs) provide several advantages over conventional sensors, including their compact size, flexibility,
Introduced Fiber Optic Displacement measurement principle, Through setting the reference channel, useing of modulation and demodulation technology the system eliminates interference caused by
The recent developed and applications of plastic fiber optic displacement sensors (FODSs) based on intensity modulation technique are reviewed in this paper. In the evolvements of FODSs,
The paper presents some fiber optic sensors that have been devised to provide a low-cost solution to monitor mechanical quantities, such as displacement, vibration amplitude and
In this paper an innovative spring-shaped fiber-optic displacement sensor (SSFODS) based on optical time domain reflectometer (OTDR) technology with simple construction and cheap
Compared to conventional transducers, optical fiber sensors show very high performances in their response to many physical parameters such as displacement, pressure, temperature and electric field.
This paper reports unified mathematical model of fiber optic bundle displacement sensor (FOBDS) based on ray tracing technique. The sensor response for concentric, random and
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
We propose a novel non-contact optical fiber displacement sensor. It uses a radio frequency (RF) interrogation technique which is based on
This paper introduces a novel design methodology for optical fiber bundles in OFDSs, simplifying the design process while customizing it to meet
A novel quasi-distributed fibre optic displacement sensor for dynamic measurement View the table of contents for this issue, or go to the journal homepage for more 2010 Meas. Sci. Technol.
Our paper begins by describing the mathematical model that underlies advanced sensor configurations. We then explain our method for
This article reviews specifically the advanced fiber optic displacement sensing techniques that have been developed in the past two decades.
B. R. Tittmann, “High sensitivity fiber optic angular displacement sensor and its application for detection of ultrasound”, Appl. Opt., v. 51, n. 20, p. 4841–4851 (2012).
Based on the measured strains, three algorithms for transforming monitored data to required displacement were investigated. Comparison analysis regarding typical advantages and
Photograph of prototype for fiber optic displacement sensor. (a) Overlap area for s = 0; (b) Overlap area for s = S1 (>0). Performance parameters
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
fiber based sensors are also presented in this chapter. The application of the FODSs in liquid refractive index measu ement is investigated theoretically and experimentally. In the last part of this chapter, a
Fibre optic displacement sensors will play an increasingly larger role in a broad range of industrial, military and medical applications. Two particular advantages include the potential for
Displacement measurements are of significant importance in a variety of critical scientific and engineering fields, such as gravitational wave detection, geophysical research, and manufacturing
This paper describes the optimal design of a miniature fiber-optic linear displacement sensor. It is characterized by its ability to measure
The mechanism of displacement sensing of sensor is investigated by mathematical analysis and tests. A novel and simple fiber-optic sensor for measuring a large displacement range in
Abstract A novel and simple fiber-optic sensor for measuring a large displacement range in civil engineering has been developed. The sensor incorporates an extremely simple bowknot
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