介绍了一种FIA（FlowInjectionAnalysis－流动注入分析）系统中的部件—微型振膜泵。该微型泵体采用无阀式的扩散管/喷嘴结构，由电磁—机械方式驱动振膜的振动，用干电池作电源。实验数据表明，该泵可在0～1.5ml/min（液体）流量范围内工作稳定，并具有结构简单、流量易于控制以及利于批量生产成本低廉等优点，有很好的应用前景。
A micropump that is one of the key components used in FIA system has been designed and tested. The valveless micropump consists diffuser/nozzle elements, driven by an electromagnetic/ mechanical driver. Only dry batteries are needed. The testing results show that the pump can work smoothly at the liquid flow rate range from 0 to 1.5ml/min. The pump has a simple structure and con－ trollable flow rate. So it's fit for manufacturing.
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