The signals that need to be collected from the soil-structure shaking table model test besides the routine acceleration

displacement and strain

also include vibration pore water pressure of the model site soil

dynamic earth pressure and some other especial signals.For the dynamic signals acquired synchronistically have diversity and complexity

the general shaking table signal acquisition system can hardly realize the real-time and synchronous signal obtaining.Therefore

based on virtual instrument technology

a dynamic signal acquisition and analysis system suitable for synchronous acquisition of many types of signals was developed

which enables simultaneous acquisition of 80 channels’ dynamic signals as well as 18 channels’ digital signals.In addition

this system can achieve the functions of spectrum analysis and signal playback. At the same time

it also has a friendly interface and the predominance of convenient usage and maintenance.