微机控制多点水位同步测量系统

Synchronous Measuring System of Multi-points Water Level Controlled by Microcomputer

非恒定流模型多点水位测量要求同步进行，测量周期短，人工测量无法进行。微机控制多点水位同步测量系统采用接触式水位传感器，消除了水表面张力、探针极化的影响，提高了测量精度，选用ＳＴＤ总线工业控制机实现了同步测量，增强了系统抗干扰能力，从而提高了试验成果质量。该系统已在数个试验场所投入使用，取得了令人满意的效果。

in the unsteady flow model test the measuring of multi-points water level must be synchronous.The measuring system is controlled by microcomputer. The water level sensors of contact-type are adopted.The system can suppress the influences of water surface tension and probe polarization,and,thus,enhance measuring accuracy. For realizing synchronous measuring and increasing anti-interference capacity of the system,the STD Bus computer for industrial control is selected. The system has been used in several model tests and achieved sarisfactory effect.