A Small-Sized and Battery-Supplied Data Acquisition System for the Electromagnetic Launcher to Measure Pulsed Magnetic Fields

Rong Gang Cao; Xiang Cai Xu

doi:10.4028/www.scientific.net/AMM.870.85

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 870A Small-Sized and Battery-Supplied Data...

A Small-Sized and Battery-Supplied Data Acquisition System for the Electromagnetic Launcher to Measure Pulsed Magnetic Fields

Abstract:

In rail-gun launchers, the main current is pulsed and can reach up to several MA. The width of the pulse is about 2 - 4ms. When pulsed currents are supplied from the pulse power, it will generate a large transient magnetic field around the armature. Meanwhile, the armature will be accelerated up to 2km/s by a large electromagnetic force. In order to research the features of the fields around contact surfaces between rails and the armature, it needs to use a small-sized and battery-supplied data acquisition system to measure pulsed magnetic fields. The B-dot probe acts as a sensor to acquire the transient magnetic fields. All data will be stored in a SD card. The armature and SD card will be caught and fetched back after the launching. The system would be suitable and useful for the electromagnetic launcher design.

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Periodical:

Applied Mechanics and Materials (Volume 870)

Pages:

85-92

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.870.85

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Online since:

September 2017

Authors:

Rong Gang Cao*, Xiang Cai Xu

Keywords:

Data Acquisition System, Electromagnetic Launcher, Micro Control Unit, Pulsed Magnetic Field

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* - Corresponding Author

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