We are offering earthquake shaking table. There are three types of earthquake shaking tables: hydraulic type, mechanical type, and electromagnetic type. An earthquake shaking table is an indispensable device in structural earthquake resistance, natural frequency measurement, vibration analysis. The cost of a shaking table depends on its size, performance, and the corresponding supporting equipments. Generally it costs several hundred thousand to over a million dollars to build one shaking table and the maintenance costs are high. Therefore, it may be too costly for many institutions and new institutions of science and engineering to buy such equipment. Even they could afford and purchase such equipment, it would still be difficult and unsuitable for it to be used for general teaching purposes. The "naws-z30 earthquake shaking table system" produced by our company is specially designed for institutions of science and engineering. It has nearly the same features and exactly the same content of experiment of a large vibration table but with much lower costs. It is very suitable for teaching. It enables students to study through experiments, to understand and master the methods needed in vibration experiments, thus laying the foundation of their future involvement for the construction of medium or large vibration tables. in addition to teaching, this system can also be used for the vibration assessment test of small devices, such as, precision electronic equipments, handheld devices, computer hard drives, sensors, mems sensors and other equipments. Another usage of the system is the calibration of sensitivity and frequency response curves of other sensors as long as a standard accelerometer (such as b&k's accelerometer for calibration) is available. Sensor calibration is necessary for engineering test, field test, vibration monitoring, etc. the configuration of the system • horizontal and vertical table • exciter • power amplifier • control instrument • charge amplifier with two channels • icp acceleration sensor amplifier with eight channels • 1 piezoelectric accelerometer • 6 icp accelerometers • standard industrial cabinet • 6 stories frame structure model • teaching software with modal shapes animation • computer contents of experiment (1) earthquake simulation; generation and application of an artificial earthquake wave; calculation of the accelerating response spectrum of earthquake time history (2) test of structural modal shape by the excitation of white noise (3) beat wave simulation (4) sine wave simulation (5) random waves simulation.