John Ziemer

John Ziemer graduated with a Bachelor of Science and Engineering degree in Aerospace Engineering from the University of Michigan in 1994. He began attending Princeton University during the fall of 1994 in the Mechanical and Aerospace Engineering Department under Professor Robert Jahn and Edgar Choueiri. In the spring of 1996, he passed the general exam earning a Master of Arts degree and full doctoral candidacy. Presently, John is a research assitant at EPPDyL in the Program in Plasma Science and Technology working towards a PhD in Plasma Science. His research currently focuses on Gas-Fed Pulsed Plasma Thrusters including work on performance scaling laws and system mass optimization.

John Ziemer been a contributing author on ten papers which are available on EPPDyL's technical database.

Abstract: Quasi-Steady Magnetoplasmadynamic Thruster Measured Performance Database
Abstract: Dimensionless Performance Model for Gas-Fed Pulsed Plasma Thrusters
Abstract: Effects of Ignition on Discharge Symmetry in Gas-Fed Pulsed Plasma Thrusters
Abstract: Trends in Performance Improvements of a Coaxial Gas-Fed Pulsed Plasma Thruster
Abstract: Performace Characterization of a High Efficiency Gas-Fed Pulsed Plasma Thruster
Abstract: Pulsed Plasma Propulsion for a Small Satellite: Mission COMPASS-POINT
Abstract: Scaling Laws for Pulsed Electric Propulsion with Application to the Pluto Mission
Abstract: Pulsed Thrust Measurement Using Laser Interferometry (RSI 97)
Abstract: Laser Interferometry for Pulsed Plasma Thruster Performance Measurement
Abstract: Pulsed Thrust Measurements Using Laser Interferometry (JPC 96)

John Ziemer is currently working at NASA-JPL's Advanced Propulsion Group, and can be contacted at john.k.ziemer@jpl.nasa.gov.