TWR allows users to measure time vibration data and play it back on a shaker. Any arbitrary number of time profiles can be run on a defined schedule, duplicating long waveforms as precisely as they were recorded. Users can enable up to 8 channels for control and time data recording on the master front-end, and up to 512 total channels when including a system of slave front-ends.
Key Features in Time Waveform Replication
Number of Waveform Profiles: Infinite number of Waveform recordings (subject to the available flash memory) is simultaneously supplied to automatically run one after the other on the test specimen.
Maximum Number of Points: all internal flash memory space is used for storing profile data (currently 3.7 GB), which corresponds to approximately 1 billion data points. At a sampling rate of 200 samples/sec. It can replicate a waveform of about 50 days.
Maximum Frequency Range: waveforms of up to 18 kHz (fa) can be replicated.
Maximum Sampling Rate of Data: users can import waveforms of any sampling rate up to 102.4kHz into the Waveform Editor tool and convert them to a suitable frequency range.
Time Waveform Replication Abort Limits
TWR abort limits are similar to the abort lines in Shock and are defined in the time domain. If the level of the control signal, within the vicinity of the waveform output, falls outside these limits then an abort event is triggered.
The top of the window shows an acceleration waveform in green. The abort limits are red lines.
The bottom pane has the abort high and low limits which can be set by the user.