Electromagnetic Suspension Acceleration Measurement Model and Experimental Analysis

Kong, Deshan; Jiang, Dong Xiang; Zhao, Yong

doi:10.3390/electronics9020226

Cited by 4 publications

(4 citation statements)

References 21 publications

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“…Kong et al presented an electromagnetic suspension based accelerometer whose proof mass dynamic equation was deduced by the change of magnetic field. The system has high-frequency ranges, i.e., 50–500 and 35–650 Hz, and accelerations of ±3.3 and ±10 m/s 2 horizontally and vertically, respectively. , …”

Section: Conventional Mems Acceleration Sensorsmentioning

confidence: 99%

“…The system has high-frequency ranges, i.e., 50−500 and 35−650 Hz, and accelerations of ±3.3 and ±10 m/s 2 horizontally and vertically, respectively. 59,60 Thermal Convection Based Accelerometers. Convective accelerometers have seen a rapid development in recent years due to their shock handling capability and compatibility with the CMOS fabrication process.…”

Section: ■ Conventional Mems Acceleration Sensorsmentioning

confidence: 99%

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Acceleration Sensors: Sensing Mechanisms, Emerging Fabrication Strategies, Materials, and Applications

Babatain

Bhattacharjee

Hussain

et al. 2021

ACS Appl. Electron. Mater.

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Accelerometers are among the most mature sensor technologies with a broad range of applications in multiple fields and industries. They represent the most widely used microelectromechanical system (MEMS) devices with excellent and reliable performance. MEMS acceleration sensors established dominance mainly in navigation and control applications. In recent years, however, recent technologies and materials have emerged that introduce novel sensing mechanisms, improve performance, enable customization, reduce cost, and reduce fabrication complexity. Herein, the recent advances in accelerometers based on MEMS and recent emerging technologies are reviewed. This work provides a comprehensive review of accelerometers' sensing mechanisms and the main characteristics and features of each type of sensor, material, and fabrication strategies used to fabricate them. From the aspect of sensor application, this work focuses on reviewing applications that demonstrate the use of accelerometers manufactured using unconventional technologies and materials in prevailing fields such as healthcare monitoring, automotive industry, navigation, building, and structural monitoring. Moreover, challenges and future efforts needed to be addressed in this field are summarized.

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Section: Conventional Mems Acceleration Sensorsmentioning

confidence: 99%

Section: ■ Conventional Mems Acceleration Sensorsmentioning

confidence: 99%

Acceleration Sensors: Sensing Mechanisms, Emerging Fabrication Strategies, Materials, and Applications

Babatain

Bhattacharjee

Hussain

et al. 2021

ACS Appl. Electron. Mater.

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“…In a recent paper by Kong et al [6], the electromagnetic effect was employed as a means to control the position of a permanent magnet. By utilising the induced magnetic field generated by an electromagnetic coil, the suspended magnet is stabilised in the vertical direction, while the annular permanent magnet controls the force in the horizontal direction, as illustrated in Figure 3.…”

Section: Introductionmentioning

confidence: 99%

Development of Empirical Model for Electromagnetic Damping Coefficient Damper

Mohd Fazli Mohd Yusoff,

Ahmad Zaidi,

Firdaus Ishak

et al. 2023

Int. J. Automot. Mech. Eng.

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The significance of the electromagnetic damper in vibration systems has attracted considerable interest from researchers, making it a prominent area of research. Various papers have been consulted to explore the vibration concept associated with electromagnetic dampers and their practical applications. A vibration test rig with a simple electromagnetic damper has been designed and tested to investigate the effect of electromagnetic force. An experimental study on the response of the electromagnetic damper was conducted. A logarithmic decrement method was deployed to find the damping coefficient, c, of a one-degree freedom system (mass spring damper system). A test rig and electromagnetic damper element were introduced as a damper in the system. Design factors included the type of geometry, type of material and the current supply to the system. The testing was conducted using the in-house developed vibration test rig. The data obtained from the experiment has been analysed to determine the electromagnetic damping performance. A factorial analysis was performed to identify the significant factors influencing the damping coefficient of the system. Two empirical models obtained through regression analysis of Excel and Minitab. It was found that the influential effects for the response are the type of material (aluminum), slotted geometry and a bigger amount of current (3 A). The application of a cylindrical conductor and magnet as a damper reduced the vibration response of spring mass damper.

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“…The sensitivity of a 3D printer to infiltration results from the possibility to receive and analyze signals related mainly to head positioning operation (electromagnetic [11][12][13], acoustic emissions [14][15][16], vibration emissions [17][18][19][20], and power consumption [11,14]). In [3] it was shown that the 3D printer was an effective source of acoustic compromising emanations.…”

Section: Introductionmentioning

confidence: 99%

The Possibility to Recreate the Shapes of Objects on the Basis of Printer Vibration in the Additive Printing Process

et al. 2021

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Information protection is an important safety issue in many human activity fields. Technological advances and related ubiquitous computerization bring new challenges in this area. In particular, the problem concerns the protection of devices against non-invasive acquisition processed information in ICT systems. It is known that, e.g., VGA, DVI/HDMI interfaces or laser printer formatter systems that process visual signals are the effective sources of compromising electromagnetic emanations. The emission safety of the more and more commonly used 3D printers is less known. In many cases, the disclosure of information about printed objects might constitute an infringement of the state/industrial/commercial secret, copyright, patent protection, etc. In order to analyze the existing threat, a selected printer using FDM technology was tested. During the tests, simple objects were printed to identify the operation of the stepper motor and the movements of the printer head and the printer platform, which are sources of emissions in the secondary channels. The analyses performed focused on finding the correlation between the recorded vibration signals and the printer head movements when an object was printed. It was shown that the analysis of the registered sensitive signal runtimes and their spectrograms allowed to recreate the printed object shape. Three simple objects (a trihedron, a tube and a tetrahedron) were selected for testing because they include elements that allow the four major movements of the printer head to be easily recognized: along the X axis, along the Y axis, along an arc and diagonally (between the X and Y axes). The paper presents the test results and their analyses.

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Electromagnetic Suspension Acceleration Measurement Model and Experimental Analysis

Cited by 4 publications

References 21 publications

Acceleration Sensors: Sensing Mechanisms, Emerging Fabrication Strategies, Materials, and Applications

Acceleration Sensors: Sensing Mechanisms, Emerging Fabrication Strategies, Materials, and Applications

Development of Empirical Model for Electromagnetic Damping Coefficient Damper

The Possibility to Recreate the Shapes of Objects on the Basis of Printer Vibration in the Additive Printing Process

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