A spaceborne hydrogen maser designs
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Popa, A. E.↗
Engineering topics
Schnelker, D.
Publications and source records attributed to Schnelker, D..
Operational characteristics of a prototype spaceborne hydrogen masers
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Wang, H. T. M.↗
Thrust vectoring systems
The design, fabrication, and testing of thrust vectorable ion optical systems capable of controlling the thrust direction from both 5- and 30-cm diameter ion thrusters is described. Both systems are capable of greater than 10 deg thrust deflection in any azimuthal direction. The 5-cm system is electrostatic and hence has a short response time and minimal power consumption. It has recently been tested for more than 7500 hours on an operational thruster. The 30-cm system is mechanical, has a response time of the order of 1 min, and consumes less than 0.3% of the total system input power at full deflection angle.
King, H. J.↗