AIRPORT TECHNOLOGY R & D BRANCH

H-BAR STRAIN GAGE TABLES
Name	Description
EVENT#	Event Number corresponds to the sequential numbering of aircraft events stored in the database.
TINTERVAL	Time interval between data points. In seconds.
TSTART	Start Time (sec) at which valid record has been reduced and stored in the database.
TEND	End Time (sec) at which valid record has been reduced and stored in the database.
FILTERFREQ	Frequency of data collection for this event. In Hertz.
NPEAKS	Number of peaks identified in the record
OFFSETLEFT	Baseline value before aircraft strain induced could be detected by this sensor. Baseline values change as a measurement of pavement response to longer environmental conditions. Values are in micro-inch/inch.
OFFSETRIGHT	Baseline value after passage of the aircraft. In pure elastic mode, offsetright Baseline values should equal offsetleft baseline values. Values are in micro-inch/inch.
TIME1	Time (sec) of first peak.
PEAK1	First peak value (micro-inch/inch)
TIME2	Time (sec) of second peak (if present)
PEAK2	Second peak value (micro-inch/inch)
TIME3	Time (sec) of third peak (if present)
PEAK3	Third peak value (micro-inch/inch)
TIME4	Time (sec) of first peak (if present)
PEAK4	Fourth peak value (micro-inch/inch)
NOTE	Field for specific remarks regarding this sensor

Contact the Project Lead: Dr. David Brill, AAR-410