Design & Research On Test Stand For Electronic Governor Experiment

In this paper, The Test Stand for Electronic Governor Experiment is introduced, all the system of Test Stand is built.The digital electronic governor of diesel engine centres on a single-chip microcomputer of Intel 80C196 KB. On the basis of the designed hardware circuit, the system realized two digital PJD control, and can modify the control parameters on line . The key hardware of monitor and control system is an industrial control personal computer. And due to the nature of the data acquisition, three data acquisition circuit board are adopted. They are voltage to digit data converting circuit board, current to digit data converting circuit board and digit data input/output circuit board. These circuit boards are used to acquire the main running parameter of the multifunctional experimentation equipment and to control the output of alarm message.The monitor and control program is developed on Delphi5.0 which is an excellent product of Borland Corp. During the designing of software, the OOP method is adopted, and the technology of multi-thread and database is also used. The program ' s interface is attractive. And the program is designed to convenient for using. The functions of monitor and control system include data sampling and showing in real time, data saving, data printing, data showing through curve graph,alarm by sound and lamp.The control system of auto adjusting load is built, the system can work for manifold test mode with twelve step load adjustment.The Test Stand consummate the condition in research of electronic governor of diesel engine equipment.