Spider-81 Vibration Controller The Spider-81 is a 4th generation vibration control system developed by Crystal Instruments. Using advanced technology unique to us, it has performance and features not seen in any other product: •DSP centralized design with simple network connection •4 - 1024 input channels with excellent phase match •PC-tethered mode or standalone Black Box mode •24 bit A/D and D/A, 130 dB input dynamic range •Integrated IEPE output, charge amplifier, AC/DC coupling, TEDS •Continuous recording for all channels at full sampling rate •AC or DC power •Isolated digital I/O •Bright LCD display It includes a full set of application functions: •Random •Sine-on-Random •Random-on-Random •Swept Sine •Resonant Search and Tracked Dwell •Classic Shock, Transient, SRS •Time Data Replication •Limiting and Notching •Shaker Diagnosis Tools •Data Recording and Dynamic Signal Analysis •Thermo Chamber Interface