【正文】
For Draining Water Automatic Control Application Research Sun Ping、 Lin Chenfei、 Chen Guolei、 Lin Yahong、 Fang Liya (Zhejiang Water conservancy and Hydropower College, Hangzhou 310018 China) Abstract: This article embarks from the fluid position sensor constitution principle analysis, gives deep insight into the typical application of fluid position relay in the draining water automatic control. It carries on a quantification analysis of the fluid position relay technical performance,theoretically infers the suitable distance scope of fluid position relay measurement (examination) in each different water quality situation. Key words: Fluid position examination, For draining water, Automatic control 供水和排水的液位自動(dòng)控制的方法很多,從控制思想討論,有開關(guān)量的動(dòng)態(tài)液位控制和模擬量的恒值液位控制,前者是將液位控制在一定的變化范圍內(nèi),后者是用 PID 調(diào)節(jié)算法,將液位始終保持幾乎恒定狀態(tài)。 液位繼電器是一種液位檢測和控制的電子器件,用來檢測可導(dǎo)電液體的液位,并能通過觸點(diǎn)輸出,控