1 / 10

Chopper

Max-Planck-Institut für Astronomie, Heidelberg. Chopper. PACS Instrument Intermediate Design Review 1-2 Mar 2001 ESTEC, Noordwijk. R. Hofferbert D. Lemke, U. Grözinger, O. Krause, U. Klaas J. Katzer (ZEISS). Overview. Lifetime Model LM Tests New Schedule Open Points Conclusion.

crete
Download Presentation

Chopper

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Max-Planck-Institut für Astronomie, Heidelberg Chopper PACS Instrument Intermediate Design Review 1-2 Mar 2001 ESTEC, Noordwijk R. Hofferbert D. Lemke, U. Grözinger, O. Krause, U. Klaas J. Katzer (ZEISS)

  2. Overview • Lifetime Model • LM Tests • New Schedule • Open Points • Conclusion Chopper

  3. Lifetime Model • LM manufacture started Nov 2000 at MPIA, drawings from Zeiss • Assembly planned for Mar/Apr 2001 at Zeiss • Design frozen Chopper

  4. Chopper Overview pigtail with I/F connector drive unit with 3 coils • Fully manufactured at MPIA mechanical workshop (A. Böhm and co-workers) I/F point mirror housing temperature sensor position sensor unit flexible pivot Chopper

  5. Rotor drive magnets • Al 6061 • 12g, 3.23x10-7kgm2 sensor magnet integrated lightweight mirror balancing masses Chopper

  6. Flexural Pivots • CuBe, double-stage • 12° • 5Nmm/rad Chopper

  7. New Schedule Chopper

  8. Work to do • Consider FPU structural analysis (KT) with respect to vibration loads for the chopper • Implementation of “PACSblack color” for the chopper • First test on LM spare cover • Qualification for QM, FM, FS (MPE) • Formal agreement with MPE for proposed QM/FM test procedures (#axes, temperature level) Chopper

  9. internal external Conclusion • Features of promising MPIA prototype nearly fully adopted in Chopper design of Zeiss Specs to be achieved • Optimized choice of materials, dimensions, linkage to be verified in LM and QM tests industrial QA guarantees outcome of a space qualified system • Interface to warm electronics nearly specified minor effort to fix cable routing and launch lock details • Start of cold lifetime tests in June 2001 • QM to be delivered in October 2001 Chopper

  10. LM Tests  MPIA Chopper

More Related