Bi-eddy current sensor based automated scanning system for thickness measurement of thick metallic plates

Nebair, Hocine; Cheriet, Ahmed; Ghoul, Islam Nacereddine El; Helifa, B.; Bensaid, Samir; Lefkaier, Ibn Khaldoun

doi:10.1007/s00170-018-1753-z

Cited by 9 publications

(4 citation statements)

References 10 publications

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“…is research aims to realize the automation, remote, and intelligence of laboratory video surveillance system and equipment operation and maintenance management, use of Internet technology and multisensor technology, reduce the pressure of manual maintenance and management laboratory equipment and system, and improve the efficiency and level of maintenance and management [13,14].…”

Section: Methodsmentioning

confidence: 99%

Laboratory Intelligent Monitoring Operation and Maintenance Management System with Multisensor Technology

Lei

2022

Mobile Information Systems

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Recently, following the rapid development of information technology and computer technology, various universities have higher and higher requirements for the management efficiency of their laboratories. Therefore, this paper studies the laboratory operation and maintenance management system (LOMMS) based on video surveillance, focusing on the detection and tracking of moving targets in the laboratory, and detecting possible abnormal behaviors. Compared with the traditional manual operation and maintenance management laboratory, the efficiency of LOMMS is significantly improved. At the same time, LOMSS video surveillance ensures the normal operation of the laboratory and the safety of the laboratory. This paper designs the complete scheme of LOMSS comprehensively with the video surveillance technology and the multisensor technology. First of all, through the detailed demand analysis of the university laboratory related staff, teachers, and students, the research objectives of LOMSS based on video surveillance are determined through repeated investigation with them. Secondly, through the demand analysis results, combined with the characteristics of LOMSS based on video surveillance, the system function is generally designed. Thirdly, based on the top-down principle, the overall function of the designed system is differentiated to obtain a more detailed functional map. At the same time, the database of LOMSS is designed to better store the data and other information in the system. The experimental results show that the temperature collected by the sensor is 10∼30°C, and the humidity is 35∼65%, which meets the environmental standards of the laboratory. This also shows that the test results of the sensor are normal, and also shows that the intelligent monitoring operation and maintenance management system (IMOMMS) of the laboratory meets the needs of the laboratory.

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Section: Methodsmentioning

confidence: 99%

Laboratory Intelligent Monitoring Operation and Maintenance Management System with Multisensor Technology

Lei

2022

Mobile Information Systems

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“…Detection of cracks and voids in, for example, welded joints are made possible by inducing eddy currents in the target area and then either measuring the leakage flux [6,7] or detecting local deviations in the thermal response [8][9][10]. Eddy current sensors have also been used in other applications, such as detecting defects buried inside parts made with additive manufacturing [11] and as a method for automated measurement of the thickness of metallic plates [12]. For grinding processes, Barkhausen noise has been used to monitor the process and detect thermal damage [13].…”

Section: Introductionmentioning

confidence: 99%

Evolution of magnetic properties during tempering

Akujärvi

Cedell

Gutnichenko

et al. 2021

Int J Adv Manuf Technol

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Quality control in heat treatment of steel is often conducted after the treatment. Failure to confine within the specified range of mechanical properties may lead to wasted energy and production resources. Performing quality control in-line in the heat treatment process allows for early detection and possibility to react to changes in the process. The prospects of utilizing the change in the electromagnetic (EM) properties of steel, as means for quality control, are investigated in this paper. The focus is on the tempering process of hardened SS2244 (42CrMoS4) steel. The tempering takes the hardness of the steel from approximately 600 HV down to around 400 HV. The EM signature of the steel is recorded during the tempering process. This is later compared with results from more traditional means of material characterization, such as laser scanning microscopy, X-ray diffractometry and Vickers microhardness measurement. This initial study shows clear indications of precise detection of the hardness through EM properties during the tempering process of selected material.

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“…Increasing the detection speed under the premise of ensuring the detection accuracy is an inevitable development direction of eddy current detection. To increase the detection speed, multiple detection coils can be used instead [15][16][17]. Literature [18] proposed a new detection scheme based on the flexible array eddy current sensor (FAECS), which can perform fast and efficient automatic online detection of the surface quality of steel balls.…”

Section: Introductionmentioning

confidence: 99%

Multi-Channel Eddy Current Detector Based on Virtual Instrument Technology and Self-Balancing Technology

2021

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In order to reduce the complexity of software and hardware design in multi-channel eddy current testing, a multi-channel real-time eddy current testing system based on lock-in amplifier technology and self-balancing technology is designed. The system uses graphical programming language platform (LabVIEW), Myrio1900 data acquisition control card and lock-in amplifier as key components. The lock-in amplifier adopts the lock-in technology to detect the amplitude and phase of the weak eddy current signal. The Myrio1900 card outputs multiple analog switch control signals and collects the amplitude component of the weak eddy current signal. The LabVIEW platform uses self-balancing technology to eliminate the imbalance of the bridge itself. The detection system realizes the real-time and reliable display of the amplitude and XY components of the 6-channel eddy current signal. Experimental results show that the designed system has a detection width of 56.00 mm at one time, and can detect artificial grooves with a covering layer of 2.90 mm. The artificial grooves have a width of 1.00 mm, a depth of 1.00 mm and a length of 50.00 mm. The system design process described in the article can be used as a reference for equipment developers and can also be used for educational purposes.

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Bi-eddy current sensor based automated scanning system for thickness measurement of thick metallic plates

Cited by 9 publications

References 10 publications

Laboratory Intelligent Monitoring Operation and Maintenance Management System with Multisensor Technology

Laboratory Intelligent Monitoring Operation and Maintenance Management System with Multisensor Technology

Evolution of magnetic properties during tempering

Multi-Channel Eddy Current Detector Based on Virtual Instrument Technology and Self-Balancing Technology

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