scholarly journals An exponent-scalable method for very small capacitance spread and large time constant of switched-capacitor integrator

2019 ◽  
Vol 16 (3) ◽  
pp. 20181075-20181075
Author(s):  
Quan Li ◽  
Yan Li ◽  
Xiaosong Wang ◽  
Xin Liu ◽  
Yu Liu
Keyword(s):  
Time Constant ◽  
Large Time ◽  
Switched Capacitor ◽  
Small Capacitance

Restoration of terahertz continuous wave image obtained by continuous scan mode with large time constant

2014 ◽  
Vol 53 (32) ◽  
pp. 7735 ◽  
Author(s):  
Xiao Lou ◽  
Lei Hou ◽  
Gaoyuan Guo ◽  
Wei Shi
Keyword(s):  
Time Constant ◽  
Large Time ◽  
Continuous Wave ◽  
Wave Image

Rapid Measurement of Power Transformer Winding DC Resistance

2013 ◽  
Vol 333-335 ◽  
pp. 22-26
Author(s):  
Xiao Fei Luo ◽  
Xian Xia ◽  
Kai Jun Wu
Keyword(s):  
Time Constant ◽  
Large Time ◽  
Power Transformer ◽  
Resistance Mutation ◽  
Transition Process ◽  
Measurement Circuit ◽  
Rapid Measurement ◽  
Transformer Winding ◽  
Simulation Results ◽  
Dc Resistance

Aim at the electric power transformer with inductance is large, resistance is small, the inherent characteristics of the large time constant, a fast measurement scheme of power transformer winding DC resistance is proposed. The scheme adopts the increase the measurement circuit loop resistance mutation method, in which the circuit transition process from a time constant is forced to another time constant, to realize the rapid measurement of winding DC resistance in power transformer. Simulation results show the effectiveness of the scheme.

Phosphoreszenz der Entladungsrohrwand (Kovarglas) als Beitrag zur Lichtemission abklingender Plasmen

1971 ◽  
Vol 26 (11) ◽  
pp. 1897-1900 ◽  
Author(s):  
T. D. Märk ◽  
H. J. Oskam
Keyword(s):  
Time Constant ◽  
Plasma Volume ◽  
Discharge Tube ◽  
Large Time ◽  
Glass Tube ◽  
Helium Plasma ◽  
Decay Period

Emission having a large time constant has been measured recently in the decay period of plasmas produced in nitrogen and helium-nitrogen mixtures. Whereas the fast decaying emission during the early afterglow originates from the plasma volume, it was suspected that emission responsible for the large time constant (10 to 15 ms) was not due to emission processes involving nitrogen. The present studies relate to detailed measurements of this phenomenon in a decaying helium plasma produced in a Kovarglass built discharge tube. It will be shown that this slow decaying emission is due to phosphorescence of the walls of the glass tube.

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