Rogowski coil calibration
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TheMerovingian
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Thu Nov 15 2007, 10:56AM
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Registered Member #14
Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
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I have built a rogowski coil wound on a coaxial wire. It is connected to an active integrator and to the o-scope via bnc connector. The purpose is to measure coilgun waveforms. The sensibility and the offset are adjusted by two potentiometers. Sensibility can be adjusted from 0.1mV/A to 10mV/A. I want to adjust it in the range of 4 or 5 mV/A. Any advices?
These waveforms belong to a coilgun pistol with SCR-VSWITCH without the projectile inside, the negative di/dt during the decay phase of the capacitor discharge is enough to trigger the second scr (the small peak) and inibite the current. For safety purposes i didn't use the projectile
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Steve Conner
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Registered Member #30
Joined: Fri Feb 03 2006, 10:52AM
Location: Glasgow, Scotland
Posts: 6706
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According to the second paper, the mutual inductance is just u0 times the cross-sectional area of the coil former times the number of turns.
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TheMerovingian
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Registered Member #14
Joined: Thu Feb 02 2006, 01:04PM
Location: Prato/italy
Posts: 383
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interesting. I'll try these methods
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