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Improved Signal Processing Technique Leads to More Robust Self Diagnostic Accelerometer SystemThe self diagnostic accelerometer (SDA) is a sensor system designed to actively monitor the health of an accelerometer. In this case an accelerometer is considered healthy if it can be determined that it is operating correctly and its measurements may be relied upon. The SDA system accomplishes this by actively monitoring the accelerometer for a variety of failure conditions including accelerometer structural damage, an electrical open circuit, and most importantly accelerometer detachment. In recent testing of the SDA system in emulated engine operating conditions it has been found that a more robust signal processing technique was necessary. An improved accelerometer diagnostic technique and test results of the SDA system utilizing this technique are presented here. Furthermore, the real time, autonomous capability of the SDA system to concurrently compensate for effects from real operating conditions such as temperature changes and mechanical noise, while monitoring the condition of the accelerometer health and attachment, will be demonstrated.
Document ID
Document Type
Conference Paper
Tokars, Roger
(NASA Glenn Research Center Cleveland, OH, United States)
Lekki, John
(NASA Glenn Research Center Cleveland, OH, United States)
Jaros, Dave
(Apollo Research Corp. Buffalo , NY, United States)
Riggs, Terrence
(Apollo Research Corp. Buffalo , NY, United States)
Evans, Kenneth P.
(Evans, (Kenneth P.) Consultant Cincinnati, OH, United States)
Date Acquired
August 25, 2013
Publication Date
January 4, 2010
Subject Category
Engineering (General)
Report/Patent Number
AIAA Paper-2010-1352
Meeting Information
48th AIAA Aerospace Sciences Meeting(Orlando, FL)
Funding Number(s)
WBS: WBS 645846.
Distribution Limits
Public Use Permitted.
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