| 摘要 |
PURPOSE:To shorten the time required for data processing and to obtain accurate response magnification, by digitally processing a reference measuring point response waveform, other measuring point response waveforms, and a vibrating input in real time. CONSTITUTION:An A/D converter 4 receives the reference measuring point response waveform Eb and a plurality of the other measuring point response waveforms Ec. The converter 4 also receives sampling triggers, which are synchronized with the vibrating input Ea, from a trigger generator 5. The converter 4 simultaneously samples the waveforms Eb and Ec for one cycle of the input Ea and supplies the result to a digital operating device 6. The operating device 6 computes the maximum value, average value, and effective value of the sampled waveforms and the frequency values of the input Ea and send the results to a memory device 7. These operations are repeated until the frequency sweeping is finished. When the vibration test is finished, the computation results stored in the memory device is read by the operating device 6 and the response magnification of the other measuring points with respect to the reference measuring point is computed. |
