aLIGO Electronics Reliability Predictions

Document #:

LIGO-E1300670-v2

Document type:

E - Engineering documents

Abstract:

This note provides background and methods used to make electronics reliability predictions based on MIL-HDBK-217F.

Several common aLIGO custom electronic chassis are evaluated, and the Mean Time Before Failure (MTBF) and failure rate are calculated.

Files in Document:

• PDF Version (aLIGO_Electronics_Reliability_v2.pdf, 98.6 kB)

Other Files:

• Excel Spreadsheet for calculating reliability (ReliabilityData_v1.xlsx, 25.0 kB)
• Word Version (aLIGO_Electronics_Reliability_v2.docx, 38.1 kB)

Topics:

• System Engineering

Authors:

• Rich Abbott

Keywords:

MTBF

Notes and Changes:

Version 2 of the word document corrects a typo on the example calculation of the MTBF of an aLIGO AA Chassis (1.94E4 hours was corrected to 1.94E5 hours)

Referenced by:

• LIGO-E1300645: aLIGO, System Reliability & Availability