A voice coil based electromagnetic system for calibration of a sub-micronewton torsional thrust stand

Lam, Jiang Kai; Koay, Seong Chun; Lim, Chun Hsion; Cheah, Kean How

doi:10.1016/j.measurement.2018.09.029

Cited by 21 publications

(6 citation statements)

References 25 publications

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“…The maximum current may be taken to represent the ablation rate of the propellant although the waveform is oscillatory. It usually occurs in low-power PPTs because of the small capacitance [21].…”

Section: Experimental Methodsmentioning

confidence: 99%

Performance of pulsed plasma thruster at low discharge energy

LEE 李,

LIM 林,

WOO 胡

et al. 2024

Plasma Sci. Technol.

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As the size of satellites are scaling down, low power and compact propulsion systems such as the Pulsed Plasma Thruster (PPT) are needed for stabilizing these miniature satellites in orbit. Most PPT systems have been operated at 2 J or more of discharge energy. In this work, the performance of a PPT with a side-fed, tongue-flared electrode configuration operated at a range of lower discharge energy of 0.5 to 2.5 J has been investigated. Ablation and charring of the Teflon propellant surface were analysed through Field Effect Scanning Electron Microscopy (FESEM) imaging and Energy Dispersive X-Ray (EDX) spectra. It was found that at discharge energy below 2 J, inconsistency in specific impulse and thrust efficiency resulted from the low mass bit measured. At energies more than 2 J, the performance parameters are compared and extensively discussed with other PPT systems of similar configuration.

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Section: Experimental Methodsmentioning

confidence: 99%

Performance of pulsed plasma thruster at low discharge energy

LEE 李,

LIM 林,

WOO 胡

et al. 2024

Plasma Sci. Technol.

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“…For example, micro thrusters in aerospace, which produce extremely low forces on the order of micronewtons, are of significance to attitude control, station keeping, drag compensation, and orbital transfer of space-based gravitational-wave detection satellites. The thrust performance needs to be evaluated accurately, resulting in the requirements for high-resolution micro-force sensors [135]. A micro thrust requires high-precision measurements over a wide range of complex vibration and temperature-coupled environments, and which should withstand high thruster loads.…”

Section: Applications Of Micro-force Sensorsmentioning

confidence: 99%

Micro-force sensing techniques and traceable reference forces: a review

Yang

Zhao²,

Huang³

et al. 2022

Meas. Sci. Technol.

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Micro-force measurement with high resolution, accuracy, and reliability is of interest to a broad range of applications including gravitational wave detection, intelligent healthcare, bionic robot, and micromanipulation. Herein, the research development in recent years of micro-force sensors based on various principles is reviewed thoroughly, presenting the characteristics and applications, as well as summarizing their advantages and limitations. The indispensable component of force sensors, elastic sensitive elements, is underlined. Next, four kinds of not widely used but promising sensors are also introduced briefly. Finally, the traceable reference forces are analyzed, concluding with a future perspective into the corresponding challenges and opportunities of micro-force sensors for future research. This review aims at providing references for developing micro-force sensors and improving their performance.

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“…deformation of a material body -the crux of this paper) in relation to its dimensions, date to the investigations of Leonardo da Vinci at the very beginning of XVI century [1,2]. Since that time both experimental techniques [3][4][5][6][7] and theoretical concepts [8][9][10][11][12][13] for SE analysis were considerably developed and moreover SE phenomena were utilised successfully in the modern industry [14][15][16][17][18]. The main message is that from the standpoint of mechanics, which constitutes the central point of presented considerations, one can say that each structure, due to the complexity of material over different scales of observation, reveals SE.…”

Section: Introductionmentioning

confidence: 99%

Formulation and experimental validation of space-fractional Timoshenko beam model with functionally graded materials effects

Stempin

Sumelka

2021

Comput Mech

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In this study, the static bending behaviour of a size-dependent thick beam is considered including FGM (Functionally Graded Materials) effects. The presented theory is a further development and extension of the space-fractional (non-local) Euler–Bernoulli beam model (s-FEBB) to space-fractional Timoshenko beam (s-FTB) one by proper taking into account shear deformation. Furthermore, a detailed parametric study on the influence of length scale and order of fractional continua for different boundary conditions demonstrates, how the non-locality affects the static bending response of the s-FTB model. The differences in results between s-FTB and s-FEBB models are shown as well to indicate when shear deformations need to be considered. Finally, material parameter identification and validation based on the bending of SU-8 polymer microbeams confirm the effectiveness of the presented model.

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A voice coil based electromagnetic system for calibration of a sub-micronewton torsional thrust stand

Cited by 21 publications

References 25 publications

Performance of pulsed plasma thruster at low discharge energy

Performance of pulsed plasma thruster at low discharge energy

Micro-force sensing techniques and traceable reference forces: a review

Formulation and experimental validation of space-fractional Timoshenko beam model with functionally graded materials effects

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