Data acquisition system for pneumatic actuator of the Tomato Color Sorter based on virtual instrument

According to the virtual instrument technology, data acquisition system for pneumatic actuator of the Tomato Color Sorter is put forwards into application in this paper. Working principle of the tomato color sorter, the characteristics of pneumatic actuator are introduced briefly. System's hardware components, sensor design principles and software design methods are described in detail. Through experiments on the system, tomato color sorter chamber pressure and strike force of ejection board are collected, functions of over-limit alarm and historical data playback are implemented. The system design and experiments are provided a data base for the tomato color sorter pneumatic actuator to further optimize the design of foundation.