Intelligent Tester for Geotextiles Products-Determination of Water Flow Capacity in their Plane

IntroductionThe manufacture of geotextile and the relevant product(s) thereof, a penetrating polymer material used in rock soiland geotechnical engineering, synthesizes technicalachievements in such industrial departments as textile,chemical industry, plastics, papermaking and the like. Sincethe characteristic of geotextile and the related product ( s)thereof is closelyrelated to kind of raw material, manufacturetechnique, product standard and the like, and th…     

新型土工布渗透率测控系统

渗透率是土工布的重要性能指标，该系统利用89C51单片机构成了土工布水平渗透率的自动测控系统，它不仅具有自动加压及梯度控制功能，还能与上位机通讯，实现测试数据的报表打印，曲线绘制。     

基于PLC的金刚石锯片开刃机自动控制系统

根据工艺相关参数和控制要求,设计一种新的自动控制系统用于金刚石锯片开刃机.以可编程控制器(PLC)为核心,采用无感矢量交流变频器与交流变频电动机构成金刚石锯片旋转自动调速系统.应用矢量变频调速技术,使旋转的金刚石锯片实现横向和纵向的往返移动以及精确的定位控制.介绍了金刚石锯片开刃机的工作特点,给出了控制系统硬件组成和工作过程.