Faraday effect optical current clamp using a bulk-glass sensing element

1993 ◽  
Vol 18 (10) ◽  
pp. 835 ◽  
Author(s):  
Y. N. Ning ◽  
D. A. Jackson
Keyword(s):  
Faraday Effect ◽  
Bulk Glass ◽  
Sensing Element ◽  
Current Clamp

An Innovative Way to Measure Temperature by Using the Faraday Effect

2011 ◽  
Author(s):  
Pranav Limaye ◽  
Anisur Rehman
Keyword(s):  
Magnetic Field ◽  
Optical Sensors ◽  
Electromagnetic Interference ◽  
Temperature Sensor ◽  
Faraday Effect ◽  
Fiber Optic ◽  
Magnetic Field Intensity ◽  
Sensing Element ◽  
Fiber Optic Cable ◽  
Optical Phenomenon

An innovative temperature sensor has been presented based on “Faraday Effect”. The Faraday Effect or the Faraday rotation is a magneto-optical phenomenon; that is, an interaction between electromagnetic wave and a magnetic field in a medium. Optical sensors based on the Faraday Effect have the advantages of simplicity, high electrical insulation and immunity to electromagnetic interference. We will be making use of an optical fiber and a permanent magnet as our sensing elements. The magnet will be the sensing element for change in temperature and the fiber optic cable will sense the change in magnetic field intensity corresponding to the change in temperature.

Magnetooptic Faraday effect in semiconductors

1973 ◽  
Vol 109 (4) ◽  
pp. 667 ◽  
Author(s):  
Yu.I. Ukhanov
Keyword(s):  
Faraday Effect

Energy-Dispersive X-ray Fluorescence Analysis as a Rapid Method for Identifying Tephras

1983 ◽  
Vol 19 (2) ◽  
pp. 201-211 ◽  
Author(s):  
A. B. Cormie ◽  
D. E. Nelson
Keyword(s):  
Reliable Method ◽  
Fluorescence Analysis ◽  
Energy Dispersive ◽  
Bulk Glass ◽  
X Ray ◽  
Additional Tool ◽  
White River ◽  
Routine Identification ◽  
Weathering Effects ◽  
Mount St Helens

AbstractThe use of energy-dispersive X-ray fluorescence analysis (XES) for the routine identification of three tephras (Mazama, Bridge River, Mount St. Helens Yn) commonly found in archeological sites in British Columbia has been investigated. Researchers have often assumed that chemical analysis of bulk samples of glass separates would be hampered by contamination and weathering effects. Our results indicate that XES of bulk glass separates provides a very reliable method for rapidly identifying the three tephras in question, even with a very simple sample preparation. This should enable persons not skilled in geology or in tephrochronology to collect and to identify samples of these tephras. Finally, as a part of the study, similar measurements were made on the separated glass portions of these three tephras and of three others (Glacier Peak B and G, White River) from northwest North America. The results suggest that this method may provide tephrochronologists with a useful additional tool for studying tephras in other regions.

Magnetic moment of a single metal nanoparticle determined from the Faraday effect

2013 ◽  
Vol 87 (3) ◽  
Author(s):  
Jacek Szczytko ◽  
Nataša Vaupotič ◽  
Karolina Madrak ◽  
Paweł Sznajder ◽  
Ewa Górecka
Keyword(s):  
Magnetic Moment ◽  
Faraday Effect ◽  
Metal Nanoparticle

scholarly journals Design Concepts for NiTiNOL Wires to Function as a Sensor

2021 ◽  
Author(s):  
D. Josephine Selvarani Ruth
Keyword(s):  
Shape Memory Alloy ◽  
Electrical Resistance ◽  
Nickel Titanium ◽  
The Other ◽  
Sensing Element ◽  
Proper Selection ◽  
Design Concepts ◽  
Mechanical Element ◽  
Selection Of ◽  
Inverse Hysteresis

AbstractNickel Titanium Naval Ordinance Laboratory (NiTiNOL) is widely called as a shape memory alloy (SMA), a class of nonlinear smart material inherited with the functionally programmed property of varying electrical resistance during the transformation enabling to be positioned as a sensing element. The major challenge to instrument the SMA wires is to suppress the wires’ nonlinearity by proper selection of two important factors. The first factor is influenced by the mechanical biasing element and the other is to identify the sensing current for the sensing device (SMA wires + biasing). This paper focuses on developing SMA wires for sensing in different orientation types and configurations by removing the non-linearity in the system’s output by introducing inverse hysteresis to the wires through the passive mechanical element.

scholarly journals Formation of a Complex Topologies of SAW-Based Inertial Sensors by Laser Thin Film Local Evaporation

Micromachines ◽  
2020 ◽  
Vol 12 (1) ◽  
pp. 10
Author(s):  
Alexander Kukaev ◽  
Dmitry Lukyanov ◽  
Denis Mikhailenko ◽  
Daniil Safronov ◽  
Sergey Shevchenko ◽  
...  
Keyword(s):  
Thin Film ◽  
Acoustic Wave ◽  
Surface Acoustic Wave ◽  
Acoustic Waves ◽  
Inertial Sensors ◽  
Surface Acoustic Waves ◽  
Sensing Element ◽  
Small Series ◽  
Evaporation Technique ◽  
Photolithography Process

Originally, sensors based on surface acoustic waves are fabricated using photolithography, which becomes extremely expensive when a small series or even single elements are needed for the research. A laser thin film local evaporation technique is proposed to substitute the photolithography process in the production of surface acoustic wave based inertial sensors prototypes. To estimate its potential a prototype of a surface acoustic wave gyroscope sensing element was fabricated and tested. Its was shown that the frequency mismatch is no more than 1%, but dispersion of the wave on small inertial masses leads to a spurious parasitic signal on receiving electrodes. Possible ways of its neglecting is discussed.

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