Accession Number:

ADA024423

Title:

Gyro Torquer Short Analysis.

Descriptive Note:

Final rept. Jun 73-Mar 74,

Corporate Author:

AEROSPACE CORP EL SEGUNDO CA MATERIALS SCIENCES LAB

Personal Author(s):

Report Date:

1975-11-20

Pagination or Media Count:

31.0

Abstract:

A cooperative examination of short circuits in the torquer circuit of a gyroscope is described. The success of this examination was largely derived from careful planning that generated a list of all conceivable short circuit models and guided each stage of the physical examination and testing to preserve the evidence so that each model could be checked. In the course of this plan, sectioning the gyro header revealed shorting bridges of electrodeposited copper that were identified by using the scanning electron microscope SEM and the ion microprobe mass analyzer IMMA. With the defect-producing mechanism understood, particular remedial action could be recommended in this case, removal of the circuit bias voltage that promoted electrodeposition of copper. Author

Subject Categories:

  • Electricity and Magnetism
  • Navigation and Guidance

Distribution Statement:

APPROVED FOR PUBLIC RELEASE