Reliable Design And Implementation Of Wet Gas Flow Metering Unit

This paper has achieved a wet gas flow measurement unit, following principles of reliability design. It can be widely used for metering wet gas flow in many fields, such as petroleum, chemical industry, energy and so on.TMS320VC5509A was chosen as the processor of the unit. And it consists of power circuit, A/D circuit, data acquisition circuit, data memory SDRAM, program memory FLASH, human-machine interface circuit, USB host circuit and CPLD interface circuit, reset circuit and real time clock circuit. The Printed Circuit Board of the hardware was also designed, assembled, and debuged.The software of the unit was designed using C language on CCS2.0 development platform, including the basic function modulars such as data acquisition, data storage, program memory, removable storage of data, human-computer interaction, watchdog, and so on. All of the software was successfully emulated and tested on the hardware.The unit can achieve data acquisition and storage of the wet gas, and also the calculation and display of the flow rate. Besides, the data can be removed into mobile storage device, which is helpful to related data analysis and production management.