MTS Multipurpose Elite - Manual (Page 356)

Description Item
Specifies the control mode. Control Mode
Defines the end level value for the first segment. Absolute End
Level 1/Relative
End Level 1
Defines the second end level value for the second
segment. Absolute End
Level 2/Relative
End Level 2
Specifies the phase relationship of the waveform
generated by this activity from channel to channel. Phase Lag
Note:
Phase Lag is relative to the channel that has
the smallest degree of phase. The Phase Lag
of each channel is referenced to the lowest
Phase Lag defined in the channels.
Time History Output
Time History Output Activity Overview
Time History Output Activity Icon
Note:
The Time History Output activity is a licensed feature.
The purpose of this activity is to drive station channels with time history files. The Time History Output
activity drives one or more channels in your station with an RPC (RPC III, or RPC Pro) Time History file
(with extension drv or tim).
The Time History Output activity can also simultaneously digitize and store one or more channels of
analog test response data in the RPC file format. After being digitized, the signals are run through a digital
filter with a cutoff of 40% of the requested sampling frequency, and then down-sampled to the requested
sampling rate. The digitized data has the same sampling rate as the drive file, and the number of points
sampled for the channel matches the drive file. This digitized file can be used to measure the system’s
transfer function or iterate to a desired response signal. It can also be used with the RPC suite of software
applications.
356 | MTS TestSuite
Test Activities