Measuring system for secondary current of induced voltage adder, marking device and method thereof

Abstract

The invention provides a measuring system for a secondary current of an induced voltage adder, a marking device and a method thereof. The measuring system is characterized in that a plurality of B-dot arrays are uniformly distributed along an angular direction on inner and outer cylinders of a transition section between IVA secondary inducing chambers, so that the angular directional distribution of the secondary current at an outlet of each level of IVA secondary inducing chambers can be measured. Due to the special electric structures of the inducing chambers, the inducing chambers are replaced by coaxial marking external cylinders added on the positions of the original inducing chambers in the marking for B-dot probe arrays, so that the current passing by the B-dot probe arrays is uniform along the angular direction. A current closed loop is formed by the marking external cylinders and the transition connecting sections. At the secondary tail end, coaxial fast pulse current sources are adopted for providing uniform injection current, a current measuring coil sleeved on a grounding end is utilized to monitor the current parameters of the pulse sources and the B-dot probe arrays of the inner and outer cylinders of the secondary are marked.

Description

technical field [0001] The invention proposes a B-dot array and a calibration method for measuring the angular distribution of the secondary current of an induced voltage superimposed device, and has important applications in pulsed power devices such as induced voltage superimposed devices and vacuum magnetically insulated transmission lines. Background technique [0002] Magnetically induced voltage adders (MIVA) is a high-current pulse power accelerator topology, which can generate high-power electric pulses with a voltage of several MV to tens of MV and a current of tens of kA to hundreds of kA. Effect simulation, material dynamics experiment, high power microwave and other fields have important applications. MIVA is composed of multi-level megavolt induction cavities in series, and each induction cavity can be regarded as a pulse transformer with a transformation ratio of 1:1. Based on the principle of electromagnetic induction, the pulse voltages fed into the inductio...

AI Technical Summary

Problems solved by technology

However, the magnetic induction coil of the current B-dot probe is usually wound into a small ring with enameled wire or steel core cable, and the consistency of multiple B-dot magnetic induction coils is difficult to guarantee, resulting in a large difference in B-dot sensitivity

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