Visualization of very weak shock waves by digital phase-shift interferometry

2000 ◽  
Author(s):  
Toshiharu Mizukaki ◽  
Harald Kleine ◽  
Kazuyoshi Takayama
Keyword(s):  
Phase Shift ◽  
Shock Waves ◽  
Weak Shock ◽  
Digital Phase

Experimental study of heat transfer in the boundary layer of a flat plate with the impact of weak shock waves on the leading edge

2020 ◽  
Author(s):  
V. L. Kocharin ◽  
A. A. Yatskikh ◽  
D. S. Prishchepova ◽  
A. V. Panina ◽  
Yu. G. Yermolaev ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Boundary Layer ◽  
Experimental Study ◽  
Shock Waves ◽  
Flat Plate ◽  
Leading Edge ◽  
Weak Shock ◽  
The Impact

Effects of Viscosity on Steady Reflection of Weak Shock Waves

2008 ◽  
Author(s):  
Mikhail Ivanov ◽  
Yevgeny Bondar ◽  
Dmitry Khotyanovsky ◽  
Alexey Kudryavtsev ◽  
Georgiy Shoev
Keyword(s):  
Shock Waves ◽  
Weak Shock

On the propagation of weak shock waves in compressible thermohyperelastic solids

2017 ◽  
Vol 229 (1) ◽  
pp. 87-97 ◽  
Author(s):  
Hocine Bechir ◽  
Abdelhakim Benslimane
Keyword(s):  
Shock Waves ◽  
Weak Shock

A digital phase shift method for phase compensation of electronic transformer

2017 ◽  
Vol 40 (13) ◽  
pp. 3690-3695 ◽  
Author(s):  
Wei Wei ◽  
Han-miao Cheng ◽  
Fan Li ◽  
Deng-ping Tang ◽  
Shui-bin Xia
Keyword(s):  
Phase Shift ◽  
Phase Error ◽  
Recursion Formula ◽  
Rogowski Coil ◽  
Shift Method ◽  
Electronic Transformer ◽  
Digital Phase ◽  
Fitting Algorithm ◽  
Fixed Phase ◽  
Phase Shift Method

When sampling analog signal, the electronic transformer generally produces a fixed phase error that will compromise the measurement accuracy and require a phase shift method for correction. In this paper, we propose a digital phase shift method based on least squares fitting algorithm and derive the recursion formula of digital phase shift. The simulation has also been done to analysis its performance. The result shows that the method has high phase shift resolution and precision. By applying the method to an electronic transformer based on Rogowski coil, we have experimentally verified the feasibility and validity of the method.

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