明渠流量計工作原理: 明渠流量計直接測量的物理量是液位。用于明渠測流量時，在明渠上安裝量水堰槽。量水堰槽把明渠內(nèi)流量的大小轉(zhuǎn)成液位的高低。儀表測量量水堰槽內(nèi)的水位，再按相應量水堰槽的水位-流量關(guān)系反算出流量.普通明渠內(nèi)流量與水位之間的對應關(guān)系，受渠道的坡降比和表面糙度影響。在渠道內(nèi)安裝量水堰槽，產(chǎn)生節(jié)流作用，使明
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