An automatic testing system for traditional hydraulic pump test - bed was sel up, which includes such functions as signal acquisition, data storing and analysis based on virtual instrument technique.

This paper introduces the method to realize the serial communication between the virtual instrument and singlechip on the helical transmission test-bed.

A complete set of a test bed vibration data stored query virtual instrument system based on Lab - VIEW TDMS (technical data management streaming) data was logically designed and implemented.