Applying wavelet denoise to improve the test signal, the dynamic characteristic parameters of a overflow valve were obtained by selecting characteristic point of the signal.
此系统应用小波降噪的方法提高测试信号的质量，然后提取信号特征点，得到溢流阀动态特性的各项参数。
2
Through experiment, achieved the relation of the flux and the opening degree of the SPF balance valve, protracted the ideal flow characteristic curve.
通过实验，得到了SPF型平衡阀的流量与开度间的关系，绘制了理想流量特性曲线。
3
Excellent regulation characteristics: V-type valve has a similar inherent equal percentage flow characteristic and adjustable up to 300:1 ratio.