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Microthruster Test Platform Status Report

Michael White & Erik Mueller. Microthruster Test Platform Status Report. Introduction. The thruster involved works by the principle of chemical decomposition Catalyst renders the mixture unstable Propellant decomposes, producing thrust. Initial planning. Problem. Solution.

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Microthruster Test Platform Status Report

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  1. Michael White & Erik Mueller Microthruster Test PlatformStatus Report

  2. Introduction • The thruster involved works by the principle of chemical decomposition • Catalyst renders the mixture unstable • Propellant decomposes, producing thrust

  3. Initial planning Problem Solution Three-axis movement sensing Modular support cradle Either a vacuum housing or made to fit inside an existing chamber • Small size • Milli-newton thrust • Must be done in a vacuum

  4. Sensing • Two possible methods • Load cell/resistor strain gauge • Piezo-resistors • Other methods include – optical sensing (deflection of light)

  5. Cradle factors to consider • Ridged mounting system • 3 connection points • Fixed against motion in one direction • Free floating motion in other two directions • Quick installation/replacement • Custom built enclosure with minimal tolerances to eliminate “slop”

  6. Costs • Sensors Uniaxial resistive strain gauge(matched to aluminum) - $27.50 per pack of 5 • Cradle Aluminum tubing for frame -

  7. Timeline • Research - 2 weeks • Planning - 3 weeks • Testing concepts -1 week • 3D rendering -3 weeks • Prototype to test complete assembly -3 weeks • Revision -2 week • Final product – 4 weeks

  8. Questions?

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