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http://dx.doi.org/10.5573/ieie.2017.54.5.97

Miniaturized Ground-Detection Sensor using a Geomagnetic Sensor for an Air-burst Munition Fuze  

LEE, HanJin (Agency for Defense Development)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.54, no.5, 2017 , pp. 97-105 More about this Journal
Abstract
An air-burst munition is limited in space, so there is a limit on the size of the fuze and the amount of ammunition. In order to increase a firepower to a target with limited ammunition, it is necessary to concentrate the firepower on the ground instead of the omnidirectional explosion after flying to the target. This paper explores the design and verification of a ground-detection sensor that detects the direction of the ground and determines the flight-distance of an air-burst munition using a single axis geomagnetic sensor. Prior to the design of the ground detection sensor, a geomagnetic sensor model mounted on the spinning air-burst munition is analyzed and a ground-detection algorithm by simplifying this model is designed. A high speed rotating device to simulate a rotation environment is designed and a geomagnetic sensor and a remote-recording system are fabricated to obtain geomagnetic data. The ground detection algorithm is verified by post-processing the acquired geomagnetic data. Taking miniaturization and low-power into consideration, the ground detection sensor is implemented with analog devices and the processor. The output signal of the ground detection sensor rotating at an arbitrary rotation speed of 200 Hz is connected to the LED (Light Emitting Diode) in the high speed rotating device and the ground detection sensor is verified using a high-speed camera.
Keywords
Geomagnetic sensor; Ground-detection sensor; Ground-detection algorithm;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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