Research on Data Recording in Seismic PSD Experiment

Civil Experimental System consists of electric-hydraulic servo-controlled machine and the data recorder in which the recorded data are saved. In Electro-hydraulic servo controller, a exterior trigger signal is used to remote control the data recorder working, and the problem of simultaneously data recording is solved by on-line processing of servo testing machine and data recorder, which quicken the test speed by making deliberately command and control. The example which is based on digital command control for pseudo-dynamic on-line test for hybrid structure of thermal power plant is described, by which the data recording simultaneously in pseudo-dynamic test achieved automatically. The research provides important reference value for the same type of on-line experiment.