Characterization of horizontal earth electrodes: Variable frequency and impulse responses

2015 ◽  
Author(s):  
H. Hasan ◽  
H. Hamzehbahmani ◽  
S. Robson ◽  
H. Griffiths ◽  
D. Clark ◽  
...  
Keyword(s):  
Variable Frequency ◽  
Impulse Responses

Characterization of external ear impulse responses using Golay codes

1992 ◽  
Vol 92 (2) ◽  
pp. 1169-1171 ◽  
Author(s):  
Bin Zhou ◽  
David M. Green ◽  
John C. Middlebrooks
Keyword(s):  
External Ear ◽  
Impulse Responses ◽  
Golay Codes

scholarly journals Spatial and Temporal Characterization of Indoor Millimeter Wave Propagation at 24 GHz

2016 ◽  
Vol 2016 ◽  
pp. 1-10 ◽  
Author(s):  
Seok-hwan Min ◽  
Hayeon Kim ◽  
Haengseon Lee ◽  
Woo Jin Byun ◽  
Minsoo Kang ◽  
...  
Keyword(s):  
Wave Propagation ◽  
Millimeter Wave ◽  
Channel Model ◽  
Impulse Responses ◽  
Channel Sounder ◽  
Model Following ◽  
Millimeter Wave Propagation ◽  
Temporal And Spatial ◽  
24 Ghz

Indoor millimeter wave propagation at the frequency of 24 GHz is studied by experimental methods. Measurements are performed to obtain temporal and spatial channel model using a channel sounder and rotating antennas in a corridor. The measured impulse responses are processed to obtain compact channel model following Saleh-Valenzuela’s model. The responses are compared with those of 5.3 GHz for the same test sites. Angular spread of 24 GHz is found to be smaller than that of 5.3 GHz, while echoes of 24 GHz are found to be longer than those of 5.3 GHz.

scholarly journals Thermal Characterization of SiC Modules for Variable Frequency Drives

2021 ◽  
pp. 1-1
Author(s):  
Marzieh Karami ◽  
Tianchen Li ◽  
Rangarajan M Tallam ◽  
Robert M Cuzner
Keyword(s):  
Thermal Characterization ◽  
Variable Frequency ◽  
Variable Frequency Drives

scholarly journals Characterization of subscriber local loop by measures and analysis of frequency and impulse responses

2006 ◽  
Author(s):  
João C. W. A. Costa ◽  
Jacklyn Reis ◽  
Igor Negrão ◽  
Agostinho Castro ◽  
Lamartine V. de Souza ◽  
...  
Keyword(s):  
Impulse Responses ◽  
Local Loop

Materials Characterization and Diagnosis Using Variable Frequency Microwaves

1996 ◽  
Vol 430 ◽  
Author(s):  
J. Billy Wei ◽  
Zak Fathi ◽  
Denise A. Tucker ◽  
Michael L. Hampton ◽  
Richard S. Garard ◽  
...  
Keyword(s):  
Resonant Mode ◽  
Diglycidyl Ether ◽  
Materials Characterization ◽  
Variable Frequency ◽  
Product Quality Control ◽  
Microwave Curing ◽  
Microwave Assisted ◽  
Characterization Of Materials ◽  
Crucial Part

AbstractProduct quality control is a crucial part of manufacturing and usually involves materials characterization and diagnosis. Though various microwave assisted nondestructive evaluation (MA-NDE) systems have been fabricated for materials inspection, none of the systems can be applied to materials within a mold or reactor. A broadband variable frequency microwave based, resonant mode MA-NDE was studied as an alternative for characterization of materials within a cavity. The main advantage of the resonant mode MA-NDE are non-intrusive and volumetric diagnosis of the material inside a mold. The principles and possible applications of the resonant mode MA-NDE are discussed. Resonant mode MA-NDE was fully demonstrated by using Vani-Wave to trace material status during microwave curing of Diglycidyl Ether of Bisphenol A (DGEBA)/Diaminodiphenylsulphone (DDS) epoxy samples.

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