检测流体多参数综合变化探头的研究

Study on probe for detecting synthetic variations in multi-parameters of fluid

对电导率探头检测流体多参数综合变化的基本原理进行了分析 ,测定了该探头的极间距离对其输出信号的影响 ,得出了该探头的温度特性曲线 ,并通过该探头对双螺旋桨推进的水面船模尾流的测量 ,初步探讨了电导率探头对流体温度和扰动强度的响应特性。结果表明 ,操头的信号随流体温度降低而增大 ,并随流体扰动强度增大而降低。

The basic principle of detecting the multi-parameters synthetic variations in fluid using a conductivity probe was analyzed. The effect of the distance between the poles of the probe on its output signal was calibrated. The temperature characteristic of the probe was presented. Based on the experimental result of the wake flow measurement of a self-propelled, dual-propeller surface ship model, the response characteristic of the conductivity probe to the fluid temperature and disturbance intensity was discussed. The results show that the output signal of the probe rises with a reduction in the temperature of fluid, and cuts down with a rise in its disturbance intensity.