【摘要】 通过对带有缓冲腔和不带有缓冲腔的平板式无阀压电泵的对比实验 ,发现前者的性能大大优于后者 ,其输出能力提高了近 4倍。由于带有缓冲腔的无阀压电泵的最佳工作频率高于不带有缓冲腔的同类型无阀压电泵 ,使其可以获得比较平稳的流量输出。当锥形角为 6 .4°,驱动电压为 12 0 V,工作频率为 73Hz时 ,所制作的带有缓冲腔的压电泵具有最佳的工作性能 ,其进、出水口处的压力差达到 8.5 3× 10 2 Pa更多还原

【Abstract】 Based on a contrast test for a plate valveless piezoelectric pump with and without a buffer,the performance of the former is better than that of the latter The output capability of the former is four times larger than the latter′s Moreover,the optimum working frequency of the former is also higher than that of the latter So the output of the former is more stable When the cone angle is 6 4°,drive voltage 120 V,working frequency 73 Hz,the performance of the pump with a buffer is test And the maximum pump pressure of 8 53×10 2Pa was reached under this condition更多还原