Analysis software

monitoringdesignoptimization

The MIMO Random vibration testing system provides precise, real-time, multi-channel control and analysis. MIMO Random supports up to 512 input channels, and up to 8 output channels (shakers). After the control channels are designated, the remaining input channels can be set up as monitoring and time data recording channels. The recording option records time stream data at the full sample rate on all input channels. A unique hardware design provides a fast loop time of less than 15 ms. Control Parameters Frequency Range: up to 4,900 Hz Spectral Resolution: 200, 400, 800, 1,600, 3,200 and 6,400. 3,200 for all 8 channels. 25,600 for 1 channel. Resolution higher than 1,600 may reduce the maximum channel count and the highest allowed overlap ratio. Loop Time: 12.5 ms for 2000 Hz. Loop time is the maximum time rate at which a controller executes complete cycles of sampling, processing data and transmitting control signals. It is the inverse of the socalled “real-time control bandwidth”. Average Number: 1 - 500 (2 - 1000 DOFs) Overlap Ratio: none, 50%, 75%, and 87.5% Control Dynamic Range: 90 dB Control Accuracy: ±1 dB at 99% confidence with 200 DOF Drive Sigma Clipping: 3 - 10, or disabled Unique Advantages Displacement Optimization for Random: A proprietary algorithm was developed to minimize displacement during Random Vibration Control testing. Displacement is reduced by 10% to 20% while the target PSD profile can still be reached. (Patent pending.)