Real-time monitoring system of pressure in supercavitation based on XC164CS

Supercavitation technology makes underwater high-speed sailing body having 90% friction reduction.The surface of vehicle is surrounded by gas mostly,while the vehicle would hit the fluid's surface frequently,damaging the supercavitation shape.In order to monitor the pressure in supercavitation immediately,this paper designed the real-time monitoring system with XC164CS as its core.The characteristic was that the control part adopts the high-performance 16-bit single chip XC164CS.A totally-sealing pressure sensor has been used to test the pressure.The results displayed on the user real-time monitoring interface.The system also had the characteristic of an operating isolating circuit,a redundant configuration of powder and acquisition system,the multi-channel data acquisition,more than 5 kHz sampling frequency.The hardware consists of the pressure acquisition,the signal modulating,the A/D converting,Flash memory storage,serial communication circuits.As to the software,the user real-time monitoring interface was designed by LABVIEW.The system realized the data processing.The result of real-time debugging showed that the system had advantages of having fine interface,isolating control,manipulating conveniently and high reliability.The functions and indexes achieved the design requirements.