At less than full load, the maximum accelerations are considerably greater. At low frequencies, the system is limited by displacements of 6 in. This unique feedback arrangement leads to excellent tracking between the table and the command signal. The frequency limit of the system is determined by the natural frequency of the table and of the supporting oil columns both of which have a natural frequency of approximately 60 Hz. This allows operations over a wide band of frequencies with small error.
Additional software is available for the collection and processing of system data.
Fourier analysis, time analysis, and other on-line procedures can be performed and the results can be electronically stored and either be printed or plotted. Data can also be transferred via the Ethernet to other computers within the University Computing Systems or to outside systems throughout the world for further processing. A supply of strain gauges and strain rosettes compatible with conditioners and dat with power supplies. The system can sample data at 1000 samples per second per channel and transfer to the large capacity hard disk. This system is equipped with data processing software and real-time display capabilities.