Determination of the current distribution in power transistors by use of infrared techniques

1967 ◽  
Vol 55 (8) ◽  
pp. 1486-1487
Author(s):  
R.J. Boncuk
Keyword(s):  
Current Distribution ◽  
Power Transistors ◽  
Infrared Techniques

scholarly journals The current distribution in an electrochemical cell. Part VII. Concluding remarks

2002 ◽  
Vol 67 (4) ◽  
pp. 273-278 ◽  
Author(s):  
Konstantin Popov ◽  
S.M. Pesic ◽  
Predrag Zivkovic
Keyword(s):  
Process Parameters ◽  
Current Distribution ◽  
Current Density ◽  
Electrochemical Cell ◽  
Side Wall ◽  
Cell Geometry ◽  
Electrode Edge ◽  
Side Walls ◽  
In Cells

Anew method for the determination of the ability of an electrolyte to distribute uniformly current density in an electrochemical cell is proposed. It is based on the comparison of the current in cells in which the electrode edges touch the cell side walls with the current in cells with different electrode edge ? cell side wall distances. The effects of cell geometry process parameters and current density are discussed and illustrated using the results presented in the previous papers from this series.

scholarly journals Determination of nitrogen and acrylic / styrene components in nitrocellulose systems by UATR and NIRA infrared techniques

2021 ◽  
Vol 93 ◽  
pp. 106962
Author(s):  
Taynara Alves de Carvalho ◽  
Amanda Carrett Gama ◽  
Rachel Farias Magalhães ◽  
Milton Faria Diniz ◽  
Natália Beck Sanches ◽  
...  
Keyword(s):  
Infrared Techniques

Effect of Current Distribution on Quartz Crystal Microbalance Measurements

1997 ◽  
Vol 502 ◽  
Author(s):  
James J. Kelly ◽  
Christopher J. Durning ◽  
Alan C. West
Keyword(s):  
Quartz Crystal Microbalance ◽  
Current Distribution ◽  
Quartz Crystal ◽  
Electrochemical Quartz Crystal Microbalance ◽  
Sensitivity Factor ◽  
A Posteriori ◽  
Frequency Shifts ◽  
Point To Point ◽  
Measured Mass

ABSTRACTSpatially nonuniform electrodeposition can cause discrepancies between predicted and experimentally measured mass loadings on an electrochemical quartz crystal microbalance (EQCM) since the sensitivity of the quartz crystal varies significantly from point to point. These discrepancies can be significant even if the current distribution is nearly uniform. These effects were examined experimentally by varying the conductivity of the electrolyte and the current density during the electrodeposition of copper on an EQCM, effecting changes in the spatial, deposited-mass distribution in a controlled manner. The resulting frequency shifts are in agreement with results predicted by current distribution simulations, validated a posteriori with profilometry measurements. Our results permit determination of the spatial variation of the quartz crystal sensitivity factor or of the current distribution on the EQCM.

scholarly journals The current distribution in an electrochemical cell. Part V: The determination of the depth of the current line penetration between the edges of the electrodes and the side walls of the cell

1999 ◽  
Vol 64 (12) ◽  
pp. 795-800 ◽  
Author(s):  
Konstantin Popov ◽  
Slavisa Pesic ◽  
Tanja Kostic
Keyword(s):  
Current Distribution ◽  
Electrochemical Cell ◽  
Polarization Curves ◽  
Current Line ◽  
Plane Parallel ◽  
Electrode Arrangement ◽  
A Cell ◽  
Side Walls ◽  
Parallel Electrode

A method for the calculation of the depth of the current line penetration between the edges of the electrodes and the side walls of the cell in a cell with plane parallel electrode arrangement is proposed. The method is verified by the calculation of the polarization curves for the cells in which the electrode edges do not touch the side walls of the cell. The agreement between the calculated and the measured values was fair.

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