Development on Intelligent Small-Flow Target Flow Meter

Target flow meter is commonly used for measuring flow, but there are many shortcomings of the traditional target flow meter, such as complex mechanical structure, low sensitivity and changing flow coefficient with small-flow, and so on. This paper describes the principle of the sensors about the target flow meter and introduces a modification method of flow coefficient shifted with small-flow. It also has given the system design of the intelligent small-flow target flow meter based on single-chip microcomputer. Experimental results show that we can achieve accurate measuring under the high viscosity and small- flow and low flow by the intelligent flow meter.