The Research of Full Digital Beneficiation Metal Detector

Abstract:

Due to the influence of interference signals, such as the electromagnetic interference, noise interference, temperature drift, and so on. The traditionally used metal detectors have the shortcomings of the inaccuracy and poor anti-interference ability. This paper is based on analyzing the principles and characteristics of traditionally used metal detectors, presents a new full digital beneficiation metal detector, which using MSP430 MCU as the core, the FFT algorithm is employed successfully to analyze the induction signals that collected when the metal through the induction coil, gets the amplitude-frequency and phase frequency characteristics, determines whether metal impurities through the coil by the characteristics of cross-correlation function. In the end, achieves good harmonization between sensibility and reliability.

• Periodical: Applied Mechanics and Materials (Volumes 385-386)
• Pages: 622-625
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.385-386.622
• Online since: August 2013
• Authors: Duan Duan Li, Cheng Hao, Ce Cui
• Keywords: Electric-Magnetic Induction, Frequency, Metal Detector, Micro Controller Unit (MCU)

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