Intelligent multi-channel tester for bridge vibration and data acquiring adapter thereof

The utility model relates to an intelligent multi-channel tester for bridge vibration and a data acquiring adapter thereof. The utility model comprises a high-performance microprocessor with a build-in type multi-channel A / D transducer; a vibration pickup signal is sent to an input port of the microprocessor build-in A/D transducer through a signal conditioning circuit, and a data output port of the A / D transducer is connected with the data terminal of a USB bus interface chip; a chip selecting line, a read-write line, an interrupt signal line and a data /command control line of the USB bus interface chip are separately connected with P , RD, WR, P and P of the microprocessor, and the output terminal of the USB bus interface chip is externally connected with the USB interface. By utilizing a present advanced computer control and management technique, the utility model can detect the field data of bridge vibration, and the utility model can display a vibration waveform in a real-time mode. The utility model has the advantages of high measuring accuracy, strong analysis capability, strong applicability and flexible and convenient expansion. Moreover, the interface circuit is easy to communicate with a supervisory computer, and the utility model is suitable for computer monitoring and management under various work conditions.