scholarly journals AN IMPEDANCE-PERMEABILITY SELF-RESONANCE OF INDUCTANCE COIL WITH METAMATERIALS

2013 ◽  
Vol 138 ◽  
pp. 21-30
Author(s):  
Qiang Yu ◽  
Qian Zhao ◽  
Yonggang Meng
Keyword(s):  
Inductance Coil

Computer-assisted experiments with an inductance coil

2011 ◽  
Vol 79 (11) ◽  
pp. 1180-1182 ◽  
Author(s):  
Yaakov Kraftmakher
Keyword(s):  
Computer Assisted ◽  
Inductance Coil

HIGH INDUCTANCE COIL EMBEDDED ON MAGNETIC SENSOR CHIP FOR BIOMAGNETIC SIGNAL MEASUREMENTS

2013 ◽  
Vol 27 (26) ◽  
pp. 1350159
Author(s):  
HYUNJUNE LYU ◽  
JUN RIM CHOI
Keyword(s):  
Complementary Metal Oxide Semiconductor ◽  
Magnetic Sensor ◽  
Oxide Semiconductor ◽  
Sensor Chip ◽  
Instrumentation Amplifier ◽  
Cmos Process ◽  
Band Pass Filter ◽  
Current Feedback ◽  
Pass Filter ◽  
Inductance Coil

For the purpose of biomagnetic measurements, a magnetic sensor chip is manufactured using a 0.18 μm complementary metal–oxide–semiconductor (CMOS) process. A high-inductance coil and an instrumentation amplifier (IA) are embedded on this chip. The embedded high-inductance coil sensor contains suitable sensitivity and bandwidth for biomagnetic measurements, and is designed via electromagnetic field simulation. A low-gm operational transconductance amplifier (OTA) is also implemented on the chip to reduce the transconductance value. The output signal sensitivity of the magnetic sensor chip is 3.25 fT/μV, and the output reference noise is [Formula: see text]. The instrumentation amplifier is designed to minimize the magnetic signal noise using current feedback and a band-pass filter (BPF) with a bandwidth between 0.5 kHz and 5 kHz. The common-mode rejection ratio (CMRR) is measured at 117.5 dB by the Multi-Project Chip test. The proposed magnetic sensor chip is designed such that the input reference noise is maintained below 0.87 μV.

The Oxford-Kew ozone sonde

1960 ◽  
Vol 256 (1287) ◽  
pp. 470-495 ◽  
Keyword(s):  
Electric Current ◽  
Ozone Concentration ◽  
Low Cost ◽  
Output Current ◽  
Auxiliary Equipment ◽  
Electrochemical Detector ◽  
Inductance Coil ◽  
Variable Inductance ◽  
A Current

An ozone sonde capable of measuring and transmitting the local ozone concentration has been developed for the I. G. Y. and is described in some detail. A continuous electrochemical detector measures the ozone concentration, providing a d. c. electric current of 0 to 5 μ A according to the amount of ozone in the air passed through it. This output current is telemetered by a current-controlled variable inductance which is interchangeable with a standard inductance coil in a Kew radiosonde. The element is of low cost, weighs about 600 g and requires very limited auxiliary equipment for its use. Sixty-five successful ascents have been made and the results of the European ascents are given.

Design and Study of Sensor Layout of Magnetic Navigation Smart Car

2014 ◽  
Vol 945-949 ◽  
pp. 1916-1919
Author(s):  
Chao Jia ◽  
Xu Fang Bo ◽  
Wen Qian An ◽  
Xiao Fang Chen
Keyword(s):  
Intelligent Vehicle ◽  
Magnetic Navigation ◽  
Inductance Coil

This article introduces tracking principle of the "Freescale" intelligent vehicle electromagnetic group which is using inductance coil as sensor and the principle of electromagnetism, it analyzes the different number and the layout of inductance coils which affect the tracking of smart car and corresponding solution.

scholarly journals Investigating a Process of Accelerating Macroscopic Objects in an Eddy-Current Inductance Coil Magnetic Field

2017 ◽  
Vol 8 (1) ◽  
pp. 115-0
Author(s):  
Andrzej HORODEŃSKI ◽  
Cezary POCHRYBNIAK ◽  
Kamil NAMYŚLAK
Keyword(s):  
Magnetic Field ◽  
Kinetic Energy ◽  
Eddy Current ◽  
Experimental Verification ◽  
Design And Technology ◽  
Electrically Conductive ◽  
Conductive Material ◽  
Inductance Coil ◽  
Macroscopic Objects ◽  
The Subject

The subject of this paper is an analysis of the process of applying kinetic energy to a projectile made of non-magnetic electrically conductive material and located inside an induction coil live with alternating current. An experimental verification was carried out of the analytical conclusions that were pertinent to the design and technology of an inductance coil gun, which is a ranged weapon type.

A versatile cryostat and a mutual inductance coil for a.c. susceptibility measurements on high Tc superconductors

1988 ◽  
Vol 100 ◽  
pp. L11-L13 ◽  
Author(s):  
Wenwu Cao ◽  
Mark Klemkosky ◽  
G.H Ziegenfuss ◽  
Amar Bhalla ◽  
L.N Mulay
Keyword(s):  
Mutual Inductance ◽  
High Tc Superconductors ◽  
High Tc ◽  
Inductance Coil

The Intelligibility of Speech by Hearing Aids on Inductance Loop and Microphone Modes of Signal Reception

1970 ◽  
Vol 13 (1) ◽  
pp. 87-91 ◽  
Author(s):  
Steven W. Vargo ◽  
Glenn Taylor ◽  
J. Curtis Tannahill ◽  
Sally A. Plummer
Keyword(s):  
Data Analysis ◽  
Hearing Aids ◽  
Comparative Evaluation ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
The Other ◽  
Measure Data ◽  
Criterion Measure ◽  
Inductance Coil ◽  
Intelligible Speech

A comparative evaluation was done on the speech intelligibility of two hearing aids, one with an inductance loop and the other with a conventional body unit. Each aid received and reproduced 50 monosyllables (CID W 22) on both inductance coil and microphone input modes. The resultant 200 words were tape-recorded from the output of a 2cc coupler and then evaluated by 196 students. Words correctly written served as the criterion measure. Data analysis revealed significantly more intelligible speech for the conventional hearing aid for both inductance coil and microphone inputs. Further, the loop hearing aid was significantly less intelligible on its inductance coil setting than on microphone reception.

A soft ferromagnetic multiwire-based inductance coil sensor for sensing applications

2014 ◽  
Vol 116 (23) ◽  
pp. 234504 ◽  
Author(s):  
J. Devkota ◽  
T. Luong ◽  
J. S. Liu ◽  
H. Shen ◽  
F. X. Qin ◽  
...  
Keyword(s):  
Inductance Coil ◽  
Sensing Applications ◽  
Soft Ferromagnetic
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