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Software for Preprocessing Data from Rocket-Engine TestsThree computer programs have been written to preprocess digitized outputs of sensors during rocket-engine tests at Stennis Space Center (SSC). The programs apply exclusively to the SSC E test-stand complex and utilize the SSC file format. The programs are the following: Engineering Units Generator (EUGEN) converts sensor-output-measurement data to engineering units. The inputs to EUGEN are raw binary test-data files, which include the voltage data, a list identifying the data channels, and time codes. EUGEN effects conversion by use of a file that contains calibration coefficients for each channel. QUICKLOOK enables immediate viewing of a few selected channels of data, in contradistinction to viewing only after post-test processing (which can take 30 minutes to several hours depending on the number of channels and other test parameters) of data from all channels. QUICKLOOK converts the selected data into a form in which they can be plotted in engineering units by use of Winplot (a free graphing program written by Rick Paris). EUPLOT provides a quick means for looking at data files generated by EUGEN without the necessity of relying on the PV-WAVE based plotting software.
Document ID
20040070835
Document Type
Other - NASA Tech Brief
Authors
Cheng, Chiu-Fu (Lockheed Martin Corp. Bay Saint Louis, MS, United States)
Date Acquired
August 21, 2013
Publication Date
January 1, 2004
Subject Category
Life Sciences (General)
Report/Patent Number
SSC-00153
SSC-00151
SSC-00160
NASA/NP-2002-06-00023
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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