The effect of sheath on plasma momentum transport to an electrically biased surface

Yeh, Feng-Bin; Wei, P. S.

doi:10.1016/j.ijheatmasstransfer.2004.12.029

Cited by 3 publications

(3 citation statements)

References 22 publications

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“…Instead, a simple, robust, and low-cost plasma impact force sensor can be used to reliably determine the total force produced by an electric propulsion thruster. Until now, only a handful [1][2][3][4][5] of experiments focused on impact force sensors. Virtually no experiments have attempted to compare the accuracy of an impact thrust sensor to the more commonly used inverted pendulum thrust stand.…”

Section: Introductionmentioning

confidence: 99%

Validating a Plasma Momentum Flux Sensor to an Inverted Pendulum Thrust Stand

Longmier

Reid²,

Gallimore³

et al. 2009

Journal of Propulsion and Power

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The accuracy of a plasma impact force sensor was compared with that of the more commonly used inverted pendulum thrust stand using a 5 kW Xe Hall effect thruster. An improved plasma momentum flux sensor was designed and constructed based on a previous design. Real-time force measurements were made with both the plasma momentum flux sensor and the inverted pendulum thrust stand. The plasma momentum flux sensor measured the force exerted onto it by the Hall effect thruster exhaust plume with a resolution of 0.1 mN and an average discrepancy of 2% compared with thrust stand measurements. Experiments were completed using a 9 m by 6 m cylindrical vacuum chamber. The total force from the Hall effect thruster was modulated from 34 to 356 mN by varying both the anode voltage, from 150 to 500 V, and the neutral Xe gas flow rate, from 5 to 15 mg=s.

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Section: Introductionmentioning

confidence: 99%

Validating a Plasma Momentum Flux Sensor to an Inverted Pendulum Thrust Stand

Longmier

Reid²,

Gallimore³

et al. 2009

Journal of Propulsion and Power

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show abstract

Section: Introductionmentioning

confidence: 99%

Hall Thruster and VASIMR VX-100 Force measurements using a Plasma Momentum Flux Sensor

Longmier

Bering

Reid

et al. 2009

47th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition

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The accuracy of a plasma impact force sensor was compared to that of the more commonly used inverted pendulum thrust stand using a 5 kW Xe Hall effect thruster (HET). An improved plasma momentum flux sensor (PMFS) was designed and constructed based on a previous design. Real-time force measurements were made with both the PMFS and the inverted pendulum thrust stand. The PMFS measured the force exerted onto it from the HET exhaust plume with a resolution of 0.1 mN, and an average discrepancy of 2% compared to thrust stand measurements. Experiments were completed using a 9 m by 6 m cylindrical vacuum chamber. The total force from the HET was modulated from 34 mN to 356 mN by varying both the anode voltage, from 150 V to 500 V, and the neutral Xe gas flow rate from 5 mg/s to 15 mg/s. Initial force measurements from the Variable Specific Impulse Magnetoplasma Rocket (VASIMR) VX-100 are analyzed and compared to RPA data.

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“…Instead, a simple, robust, and low-cost plasma impact force sensor can be used to reliably determine the total force produced by an electric propulsion thruster. Until now, only a handful [1][2][3][4] of experiments have focused on impact force sensors. Virtually no experiments have attempted to compare the accuracy of an impact thrust sensor to the more commonly used pendulum thrust stand.…”

Section: Introductionmentioning

confidence: 99%

Validating A Plasma Momentum Flux Sensor Against an Inverted Pendulum Thrust Stand

Longmier¹,

Reid²,

Gallimore³

et al. 2008

44th AIAA/ASME/SAE/ASEE Joint Propulsion Conference &Amp;amp; Exhibit

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The accuracy of a plasma impact force sensor was compared to that of the more commonly used inverted pendulum thrust stand using a 5 kW Xe Hall thruster. A plasma momentum flux sensor (PMFS) was designed and constructed based on a previous NASA-Marshall Space Flight Center (MSFC) design. Real-time force measurements were made with both the PMFS and the inverted pendulum thrust stand. The PMFS measured the force exerted onto it from the Hall thruster exhaust plume with a resolution of 0.1 mN, and an average accuracy better than 98% compared to the thrust stand. Experiments were completed at the Large Vacuum Test Facility (LVTF) at the University of Michigan. The total force from the Hall thruster was modulated from 34 mN to 356 mN by varying both the anode voltage, from 150 V to 500 V, and the neutral Xe gas flow rate from 5 mg/s to 15 mg/s. The majority of the force data taken during the experiment campaign was completed as a "blind study" where force measurements from both techniques were disclosed only after the experiment was completed.

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The effect of sheath on plasma momentum transport to an electrically biased surface

Cited by 3 publications

References 22 publications

Validating a Plasma Momentum Flux Sensor to an Inverted Pendulum Thrust Stand

Validating a Plasma Momentum Flux Sensor to an Inverted Pendulum Thrust Stand

Hall Thruster and VASIMR VX-100 Force measurements using a Plasma Momentum Flux Sensor

Validating A Plasma Momentum Flux Sensor Against an Inverted Pendulum Thrust Stand

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