Measuring System for Furrow Opener Based on Virtual Instrument Technology

Now measure instruments and electronic technology developed quickly, however, as for traditional measure instruments, even if digital instruments and intelligent instruments which heighten the accuracy and function of the traditional measurement and analysis system, they still can not change their some shortcomings, such as single function, handle manipulating, large and ponderous volume, fixed channel number and high cost to develop functions etc. Aimed at the above demerits, a kind of virtual instrument that is developed with PC and correlative software emerged. A single channel stress-strain virtual measuring system, which was designed by graphical programming language DASYLab, was successfully substituted for the traditional stress-strain measuring system on the experiment of the horizontal force acting on the furrow opener surface by disturbed soil. The stress-strain virtual measuring system indicates more merits than the traditional stress-strain measuring system on many aspects including data real-time display, data real-time storage, data memory format, data processing and replay, and operation convenience. It shows much higher ratio of performance to price.