Characteristics of Metal Sensor using Variable Frequency
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This article is published in The Journal of the Korea institute of electronic communication sciences.The article was published on 2014-02-28 and is currently open access. It has received 4 citations till now. The article focuses on the topics: Inductive sensor & Potentiometric sensor.read more
Citations
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A comprehensive survey on computer vision based concepts, methodologies, analysis and applications for automatic gun/knife detection
TL;DR: An extensive survey on automatic detection of gun is presented and a taxonomy for this particular detection system is defined, describing the inherent difficulties related with this problem and pointing to the possible research gaps in related fields.
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Metal Detection Sensor Utilizing Magneto-Impedance Magnetometer
TL;DR: A magnetometer with a longitudinal sensing line using the MI effect was examined experimentally to find an application to replace conventional metal sensors based on an LVDT with unmatched degaussing, geomagnetic field compensation, and active noise reduction techniques.
Journal ArticleDOI
Development of Sound Frequency analyser using an Ultra-Low Power MCU
Jae-Hoon Choi,Yong-Joo Chung +1 more
TL;DR: This paper introduces a system that is developed based on a MSP430 MCU(:Micro-Controller Unit) from TI(: Texas Instruments) and could confirm that the proposed system could identify with a high-accuracy the frequencies of various artificial and natural sounds.
Journal ArticleDOI
Sound Frequency Detection Using an Ultra-Low Power MCU
Jae-Hoon Choi,Yong-Joo Chung +1 more
TL;DR: This paper introduces a system that is developed based on a MSP430 MCU (Micro Controller Unit) from TI (Texas Instrument) and could confirm that the proposed system could identify with a relatively high-accuracy the frequencies of various artificial and natural sounds.
References
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Journal ArticleDOI
Basic analysis of a metal detector
TL;DR: An attempt is made to theoretically analyze the properties, such as size, conductivity, and permeability of the metal objects from the output, i.e., amplitude and phase of theMetal detector.
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Calculation of optimum spacing for a three coil axially symmetric metal detector
M. Brighton,M.J. English +1 more
TL;DR: In this paper, a three-coil axially symmetric design is used for in-line metal detectors and a formula is derived which predicts the signal produced by a metal sphere when moved along the axis of such a detector and from this a graph is produced to determine the optimum coil spacing.
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Sensitivity of metal detectors to spheroidal targets
P.P. Silvester,D. Omeragic +1 more
TL;DR: The existence of such blind-position angles is investigated theoretically in detail and families of curves are given to illustrate them in a particular case.
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First Practical High Tc SQUID System for the Detection of Magnetic Contaminants in Commercial Products
TL;DR: The first practical High Tc SQUID system for the detection of magnetic contaminants in commercial products was developed in this article, which consists of three SQUIDs cooled by liquid nitrogen, a permalloy magnetic shield, a conveyer, and a magnetization unit.
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Signal Processing Techniques for Improved Performance of a SQUID-Based Metal-Detector
TL;DR: Improvements in the use of adaptive filters, matched filter correlation and component estimation algorithms for automatic contaminant detection will enable commercial operation of SQUID-based stainless-steel detection systems in standard factory environments with acceptable correct and false positive detection rates.