Digital Micro-Propulsion Project

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Test Stand Firing

August 4, 1998

FIRING THE MICRO-THRUSTER produces, in this early prototype, 0.1 mN of impulse and 100 W of power. The ballistic pendulum (a) is used to precisely measure the thrust produced by the Digital Propulsion chip (b). The thrust plume (c) is visible to the right of the chip. Interferometric optics (d) to measure the displacement of the pendulum are visible in bottom right corner of each frame. This series of images was acquired at 4,500 frames per second.

Copyright © California Institute of Technology, 1998, 1999, 2000
Last Updated Mon Sep 21 17:32:25 PDT 1998