As shown by the test results, the design of the network flowmeasurement system for the high-speed multi-link logical channel has achieved the expected targets on its function and performance.
In this paper, the limitation and shortage of the open channelflowmeasurement are pointed out based on the review of the flowmeasurement methods and velocity distribution in open channel.
Finally we combine virtual instrument and the technology of flowmeasurement, which comes into being the virtual multi-channel instrument for flowmeasurement debated in detail in this paper.