Development of a two-dimensional dual pendulum thrust stand for Hall thrusters

N. Nagao, S. Yokota, K. Komurasaki, Y. Arakawa

doi:10.1063/1.2815336

Development of a two-dimensional dual pendulum thrust stand for Hall thrusters

DOI PDF 被引用文献11件

N. Nagao

University of Tokyo Department of Aeronautics and Astronautics, , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
S. Yokota

University of Tokyo Department of Aeronautics and Astronautics, , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
K. Komurasaki

University of Tokyo Department of Advanced Energy, , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan
Y. Arakawa

University of Tokyo Department of Aeronautics and Astronautics, , 7-3-1, Hongo, Bunkyo-ku, Tokyo 113-8656, Japan

抄録

<jats:p>A two-dimensional dual pendulum thrust stand was developed to measure thrust vectors [axial and horizontal (transverse) direction thrusts] of a Hall thruster. A thruster with a steering mechanism is mounted on the inner pendulum, and thrust is measured from the displacement between inner and outer pendulums, by which a thermal drift effect is canceled out. Two crossover knife-edges support each pendulum arm: one is set on the other at a right angle. They enable the pendulums to swing in two directions. Thrust calibration using a pulley and weight system showed that the measurement errors were less than 0.25mN (1.4%) in the main thrust direction and 0.09mN (1.4%) in its transverse direction. The thrust angle of the thrust vector was measured with the stand using the thruster. Consequently, a vector deviation from the main thrust direction of ±2.3° was measured with the error of ±0.2° under the typical operating conditions for the thruster.</jats:p>