A torsional-type thrust stand is designed, to precisely measure impulse bits produced by pulsed plasma thrusters (PPTs) in vacuum. This stand is capable of measuring low in]pulse rauging from 10 to 1000 uNs. Investigations into extremely low impulse measurement have been hampered by facility vibrations. We discuss about relation between background noise and vibrations induced by it, and optimum damping ratio, that makes Signal-to-Noise ratio maximum, is shown. Using this thrust stand, the performance of a liquid propellant PPT was measured.
Performance Measurements Using a Sub-Micronewton Resolution Thrust Stand ∗
A sub-micronewton level thrust stand is used to evaluate the performance of five different microthrusters. Using a torsional balance design, the JPL microthrust stand (µTS) is capable of measuring…
Haag , " Thrust Stand for Pu ] sed Plasma Thruster New T ~ pe of Target for the Measurement of Impulse Bits of Pulsed Plasma Thrusters
Liquid Propellant PPT Performance
23rd International Symposium on Space Technology and Science, Matsue, May 26 - June 2, 2002. ISTS 2002 b-15.