Results 1 to 10 of about 479,020 (225)

Sensitivity Optimization and Experimental Study of the Long-Range Metal Detector Based on Chaotic Duffing Oscillator [PDF]

open access: yesSensors, 2022
Sensors based on chaotic oscillators have a simple design, combined with high sensitivity and energy efficiency. Among many developed schemes of such sensors, the promising one is based on the Duffing oscillator, which possesses a remarkable property of ...
Timur Karimov   +7 more
doaj   +2 more sources

Metal detector system [PDF]

open access: green, 1970
Signal voltage resulting from the disturbance of an electromagnetic field within the volume of a sensitive area is compared with a reference ac voltage for polarity information, which identifies the material. System output amplitude and polarity indicate
Lee, R. D.
core   +2 more sources

Analysis of the Influence of Farmer Behavior on Heavy Metal Pollution in Farmland Soil: A Case Study of Shouyang County, Shanxi Province [PDF]

open access: yesToxics
Building upon a theoretical framework, this study utilized 126 field survey questionnaires from farmers in Shouyang County, Shanxi Province, China, coupled with corresponding farmland soil heavy metal monitoring data, to investigate the extent of heavy ...
Jin-Xian Han   +2 more
doaj   +2 more sources

Detection of Modern Spinal Implants by Handheld Metal Detectors: A Prospective Observational Study. [PDF]

open access: diamondCureus
Dave BR   +10 more
europepmc   +3 more sources

Safety beyond Sight: Handheld Metal Detectors as Diagnostic Allies in the Management of Children Suspected to have Ingested Foreign Bodies [PDF]

open access: goldDiagnostics
Background. Foreign body (FB) ingestion remains a common cause of pediatric emergency department referrals, and the gold standard for detection is whole-digestive-tract radiographic examination.
Tomaz Krencnik   +4 more
doaj   +2 more sources

Overview of Promising Solutions in Subsurface Sounding Equipment

open access: yesSensors, 2023
This overview analyzes current advances in the equipment for detecting various subsurface metal and metal-containing objects. Various metal detector types are discussed alongside their operation principles, properties, and capabilities.
Ivan V. Bryakin   +3 more
doaj   +1 more source

SYSTEM FOR DETECTION AND IDENTIFICATION OF POTENTIALLY EXPLOSIVE OBJECTS IN OPEN AREA

open access: yesСучасний стан наукових досліджень та технологій в промисловості, 2022
The subject of this research is the methods, means and systems for detecting potentially dangerous military objects in open terrain. The purpose of the study is to develop a system for the detection and identification of potentially explosive military ...
Ivan Pakhnуts   +2 more
doaj   +1 more source

Using a handheld metal detector to detect ingested hooks and other metallic objects in freshwater turtles

open access: yesWildlife Society Bulletin, 2023
Turtles can be unintentionally hooked during recreational and commercial fishing operations. While hook ingestion is not always fatal, ingested hooks can harm or kill turtles by damaging soft tissues or affecting digestion.
Vanessa R. Lane   +3 more
doaj   +1 more source

Developing a Combined Method for Detection of Buried Metal Objects

open access: yesMachines, 2021
This paper discusses the author-developed novel method for the detection of buried metal objects that combines two basic subsurface sensing methods: one based on changes in the electromagnetic field parameters as induced by the inner or surficial ...
Ivan V. Bryakin   +3 more
doaj   +1 more source

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