1 / 8

Electric Field Instrument (EFI) Electrical Fabrication and Test

Electric Field Instrument (EFI) Electrical Fabrication and Test. Electrical Fab and Test (1). Preamp ETU electrical and mechanical fab and assy at UCBSSL.

baina
Download Presentation

Electric Field Instrument (EFI) Electrical Fabrication and Test

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. Electric Field Instrument (EFI) • Electrical Fabrication and Test

  2. Electrical Fab and Test (1) • Preamp • ETU electrical and mechanical fab and assy at UCBSSL. • ETU functional test and calibration (power; stability; basic AC/DC transfer fctn., linearity, sm/lg signal response) with Cluster spare cable and BEB breadboard or ETU, and prototype EFI test fixtures. • ETU thermal stress test (l-N2) (TBD). • Flight electrical fab and assy in-house (Silver 180 as clean Flight assy. area). • Flight functional test and calibration (as above) with flight cable, BEB ETU, and EFI test fixtures. • Flight thermal stress test (TBD).

  3. Electrical Fab and Test (2) • BEB • ETU electrical and mechanical fab and assy at UCBSSL. • ETU functional test and calibration (power; stability; basic AC/DC transfer fctn., linearity, sm/lg signal response; bias system response and accuracy) . • Flight electrical fab and assy TBD (Addition TBD as clean Flight assy. area). • Flight functional test and calibration (as above). • MCB • ETU electrical and mechanical fab and assy at UCBSSL. • ETU functional test and calibration (power over voltage range). • Integration into SPB ETU. • Flight electrical fab and assy TBD (Addition TBD as clean Flight assy. area). • Flight functional test and calibration (as above). • Integration into SPB Flight unit.

  4. Electrical Fab and Test (3) • II&T EFI/BEB • Full-Flight functional Test and Calibration using EFI/BEB GSE (automated; one axis at a time; power, stability; detailed AC/DC transfer fctn., linearity, sm/lg signal response; bias system response and accuracy) (3 days). • Limited functional test and calibration with temperature during II&T TVAC using internal test functionality (power; basic DC transfer fctn.). • End-to-end fields calibration (SCM, EFI/BEB, FGM and DFB) (may be combined with full-flight functional test and calibration). • SC I&T • Functional tests using internal test functionality only (basic DC gain; AC response, if stable in stowed config.).

  5. Electrical GSE • Block Diagram of EFI/BEB GSE

  6. Electrical GSE Requirements (1) • Power/Thermal/Mechanical • Provide regulated voltages. • Facilitate current measurements. • 6U VME support (w/out Wedgelocks) for BEB. • Portable and rugged for transport. • Open rack for access while under test. • Connectors acceptable for Flight interconnection • Electrical Interface • Backplane interface per IDPU backplane specification. • 1 MUX’d analog housekeeping output (ANA HSK). • GSE interface circuitry must be flight-grade.

  7. Electrical GSE Requirements (2) • Command and Telemetry Handling • GSE sends 24-bit CDI commands per ICD specification. • Command format is compatible with IDPU and MOC GSE (TBD). • Before DFB and DCB, data is from GSE’s IEEE-1394 ADC. • Afterwards data is extracted from telemetry. • Test Support Equipment • GSE controls GPIB function generator and +/- 100-V supplies. • “Faraday cage”-type test fixture (pairs for SPB and AXB). • Compatibility with Next Level of Integration • Uses ITOS, LabWindows (or equiv), C. • PC standards. • Easy accessibility to data for offline processing (FTP, HTTP, etc.).

  8. Electrical GSE Requirements (3) • Data Manipulation and Display • Plot any of 16 channels over user-specified timespan. • Calculate 2N-point FFT on user-specified channels. • Compute and display power spectra and transfer functions of user-specified channels. • Display control values for GPIB and GSE interface equipment. • Support hardcopy output. • Raw and derived data, as well as configuration information stored in tabular ASCII format file. • Data manipulation and display scriptable to allow for automation of test and cal procedures.

More Related