Improved Three Axis Test Table (ITATT): Program Status and Recommendation for Completion.

摘要

In May 1989 Contraves was awarded Phase I of the Improved Three-Axis Test Table (ITATT) program to develop the inner axis of what will eventually be the complete three axis ITATT. Phase I is a proof of principle research and development effort and is a cost plus incentive fee contract. Phase II is a firm fixed price not to exceed option that will incorporate the Phase I inner axis into new middle and outer taxes. Several critical ITATT technologies are being demonstrated in Phase I including: CFRP gimbals, roll rings, magnetic bearings, induction or A.C. motors, and back-to-back Inductosyn encoding. Based on a 1984 government funded design study, these technologies can be used to test table with 0.1 arc second pointing accuracy, which is a factor of ten improvement over current test tables. Contraves has worked diligently over the past 14 months to achieve the Phase I proof of principle objectives and has made significant progress. As of August 10,1990, the baseline hardware is assembled, wired, integrated, and partially tested. (rrh)