Gyro Torquer Short Analysis.
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 20, 1975
- Accession Number
- ADA024423
Entities
People
- Richard H. Jones
Organizations
- The Aerospace Corporation