Recommended Practice for Thrust Measurement in Electric Propulsion Testing
| Autor: | Scott King, Anthony Pancotti, James E. Polk, Joseph Blakely, John Ziemer, Mitchell L. R. Walker, Thomas W. Haag |
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| Rok vydání: | 2021 |
| Předmět: |
010302 applied physics
Propellant Engineering business.industry Mechanical Engineering Aerospace Engineering Mechanical engineering Thrust Thrust-to-weight ratio Impulse (physics) 01 natural sciences Article 010305 fluids & plasmas Fuel Technology Electrically powered spacecraft propulsion Space and Planetary Science 0103 physical sciences Field-emission electric propulsion business |
| Zdroj: | J Propuls Power |
| ISSN: | 1533-3876 |
| Popis: | Accurate, direct measurement of thrust or impulse is one of the most critical elements of electric thruster characterization, and one of the most difficult measurements to make. This paper summarizes recommended practices for the design, calibration, and operation of pendulum thrust stands, which are widely recognized as the best approach for measuring μN- to mN-level thrust and μNs-level impulse bits. The fundamentals of pendulum thrust stand operation are reviewed, along with the implementation of hanging pendulum, inverted pendulum, and torsional balance configurations. Methods of calibration and recommendations for calibration processes are presented. Sources of error are identified and methods for data processing and uncertainty analysis are discussed. This review is intended to be the first step toward a recommended practices document to help the community produce high quality thrust measurements. |
| Databáze: | OpenAIRE |
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