Design of Multi-Channel Solenoid Valve Current Detection System
To measure online the current of solenoid valve drive power supply applied in petrochemical industry,the online detection of solenoid valve drive power supply current in petrochemical industry has been studied.A multi-channel solenoid valve current detection system is designed.The current detection system takes STM32 as the core control module and the current sensor as the measurement sensor.The hardware part includes data acquisition module,data storage module,data transmission module and so on.The system supports online detection of multi-channel current signals,online setting of current abnormality thresholds,can real-time dynamic transmission of the collected current data and current judgment results to the human machine interface(HMI)software.The feasibility of the measurement system is verified through current simulation tests.The test results show that the system can meet the online detection needs of multiple solenoid valve currents,and the test process has no effect on the equipment under test.The system has high measurement accuracy,simple realization,easy installation,and also can be used for current detection in other industrial.