Magnet-sensitive optical fiber and its application in current sensor system

1991 ◽  
Author(s):  
Tong Yu ◽  
Qin G. Li ◽  
Rongsheng Chen ◽  
Jin-Li Yan
Keyword(s):  
Optical Fiber ◽  
Sensor System ◽  
Current Sensor

Magnet-sensitive optical fiber and its application in current sensor system

1991 ◽  
Author(s):  
Tong Yu ◽  
Qin G. Li ◽  
Rongsheng Chen ◽  
Jin-Li Yan
Keyword(s):  
Optical Fiber ◽  
Sensor System ◽  
Current Sensor

High Current 270 VDC Contactor and Current Sensor System Design and Development

1998 ◽  
Author(s):  
Sean Sande ◽  
Karl Kitts ◽  
Robert Shanebrook ◽  
Dennis Timm ◽  
Tuan N. Tran
Keyword(s):  
System Design ◽  
Sensor System ◽  
Current Sensor ◽  
High Current ◽  
Design And Development ◽  
Sensor System Design

Polymer optical fiber-embedded force sensor system for assistive devices with dynamic compensation

2021 ◽  
pp. 1-1
Author(s):  
Leticia Avellar ◽  
Gabriel Delgado ◽  
Eduardo Rocon ◽  
Carlos Marques ◽  
Anselmo Frizera ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Force Sensor ◽  
Assistive Devices ◽  
Sensor System ◽  
Polymer Optical Fiber ◽  
Dynamic Compensation

scholarly journals Eddy Current Sensor System for Tilting Independent In-Process Measurement of Magnetic Anisotropy

Sensors ◽  
2021 ◽  
Vol 21 (8) ◽  
pp. 2652
Author(s):  
Frank Wendler ◽  
Rohan Munjal ◽  
Muhammad Waqas ◽  
Robert Laue ◽  
Sebastian Härtel ◽  
...  
Keyword(s):  
Magnetic Anisotropy ◽  
Eddy Current ◽  
Digital Signal ◽  
Production Equipment ◽  
Sensor System ◽  
Current Sensor ◽  
Cold Forming ◽  
Eddy Current Sensor ◽  
Two Samples ◽  
Internal Mechanical Stress

Modern production equipment is based on the results of quality control as well as process parameters. The magnetic anisotropy of materials is closely connected to internal mechanical stress by the Villari effect, and also to hardening effects due to plastic deformations, and could therefore provide an interesting basis for process control. Nevertheless, the analysis of anisotropic properties is extremely sensitive to sensor and workpiece misalignments, such as tilting. In this work, a novel eddy current sensor system is introduced, performing a non-contact measurement of the magnetic anisotropy of a workpiece and realizing a separation and correction of tilting effects. The measurement principle is demonstrated with the example of two samples with different magnetic anisotropy values induced by cold forming. Both samples are analyzed under different tilt angles between the sensor axis and the surface of the workpiece. In this work, digital signal processing is demonstrated on the acquired raw data in order to differentiate the effects of tilt and of anisotropy, with the use of preliminary results as an example of two prepared samples.

A Multiplexed Optical Fiber Sensor System For Distributed Measurement Of Structural Strains

1997 ◽  
Vol 503 ◽  
Author(s):  
F. Ansari ◽  
Z. Chen ◽  
Q. Li
Keyword(s):  
Optical Fiber ◽  
Optical Switch ◽  
Optical Fiber Sensor ◽  
Fiber Material ◽  
Smart Structure ◽  
Sensor System ◽  
Fiber Sensor ◽  
Fiber Sensors ◽  
Large Structures ◽  
Distributed Measurement

ABSTRACTStructurally integrated optical fiber sensors form the basis for smart structure technology. Over the past decade a variety of sensor configurations have been developed for measurement of strains and deformations in structures. Strains and deformations alter the refractive index and the geometry of the optical fiber material. These changes perturb the intensity, phase, and polarization of the light-wave propagating along the probing fiber. The optical perturbations are detected for the determination of strain. The research presented here describes the development of a new optical fiber sensor system for measurement of structural strains based on white light interferometry. An optical switch provides for multiplexing of strain signals from various locations in the structure. Redundant Bragg grating type fiber optic sensors as well as strain gauges were employed for comparison and verification of strain signals as measured by the new system. The system provides capability for distributed sensing of strains in large structures.

Polymer Optical Fiber Sensor System for Multi Plane Bending Angle Assessment

2020 ◽  
Vol 20 (5) ◽  
pp. 2518-2525
Author(s):  
Arnaldo G. Leal-Junior ◽  
Leticia M. Avellar ◽  
Camilo A. R. Diaz ◽  
Maria Jose Pontes ◽  
Anselmo Frizera
Keyword(s):  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Sensor System ◽  
Fiber Sensor ◽  
Polymer Optical Fiber ◽  
Bending Angle ◽  
Plane Bending

scholarly journals Analyses of carboxylic acid esters and lubricants using a gold-coated optical-fiber sensor system.

2000 ◽  
Vol 49 (5) ◽  
pp. 307-311 ◽  
Author(s):  
Masaru MITSUSHIO ◽  
Toshifumi YOSHIDOME ◽  
Satsuo KAMATA
Keyword(s):  
Carboxylic Acid ◽  
Optical Fiber ◽  
Optical Fiber Sensor ◽  
Sensor System ◽  
Fiber Sensor ◽  
Acid Esters

High bandwidth optical fiber current sensor

1993 ◽  
Author(s):  
Elizabeth M. Hodgson ◽  
Allan D. Boardman ◽  
A. C. Wilson ◽  
Y. Hua
Keyword(s):  
Optical Fiber ◽  
Current Sensor ◽  
High Bandwidth ◽  
Optical Fiber Current Sensor
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