Liquid phase pump system integrated control system and method for multi-shaft coupling cooperative motion

Abstract

The invention discloses a liquid phase pump system integrated control system and method for multi-axis coupling cooperative motion. The system comprises a motion controller module, a high-precision motor driving module, a pressure sensor gain feedback module, an upper computer database module and a high-speed bus module. The motion controller module is used for generating a multi-axis motor cooperative motion control signal; the high-precision motor driving module is used for generating a motor driving signal and a motor state feedback signal with accurate signal stabilization time; the uppercomputer database module is used for recording and feeding back motion parameters in real time; the high-speed bus module is used for being connected with the motion controller module, the high-precision motor driving module and the upper computer database module and switching data and control signals; the high-precision motor driving modules are connected in series through a data bus interface toform a multi-axis motor driver module, and the multi-axis motor driver module is connected with the motion controller through a control bus; and the upper computer database module is connected with the motion controller through a data bus.

Description

technical field [0001] The invention belongs to the technical field of electronic engineering, and mainly relates to an integrated control system and method for a liquid-phase pump system with multi-axis coupling and coordinated motion. The integrated application of various control methods ensures the synchronous transmission and execution of liquid-phase pump electric control instructions and ensures the output flow. High precision, low pulsation, dynamic response. Background technique [0002] At present, ultra-high performance liquid chromatography (UHPLC) is the most advanced detection system in the field of chromatographic analysis, and it is an inevitable trend to replace the widely used high-performance liquid chromatography (HPLC) analysis system. In the fields of food safety, pharmaceuticals, environmental testing, scientific research, etc., the work efficiency of chromatographic workers is greatly improved, and the consumption of solvents and samples is significant...

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: to overcome the deficiency of the existing control system for the poor synchronization of multi-axis control, to provide an integrated control system and method for the liquid phase pump system with multi-axis coupling and coordinated motion, and to improve the control of the existing liquid phase pump drive system. Accuracy, this method is used to ensure that the effective time of the control command is better than 2ms under different working conditions and medium conditions of the liquid phase pump, the consistency index of the constant flow delivery flow accuracy is better than 0.06%, and the pulsation index is better than 0.3MPa (1mL / min,120MPa)

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