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什么是流量

瀏覽次數: 日期:2012-9-29

  流量,是指流體流過一定截面的量。流量是瞬時流量和累積流量的統稱。在一段時間內流體流過一定截面的量稱為累積流量,也稱總量。當時間很短時,流體流過一定截面的量稱為瞬時流量,在不會產生誤解的情況下,瞬時流量也可簡稱流量。流量單位是“m/h”或“L/min”。
  具體到水表這種計量器具來說,我們可以這樣理解流量的含義。如果將水龍頭打開一定的開度,水表的指針會以一定的速度旋轉,那么此時的流量是多少呢?假設我們在出口處某截面測得在10min(分鐘)內通過的水量為1立方米,那么此時的流量應為lm除以10分鐘,換算成流量的單位m/h的話,得到此時水的流量為6m/h。

所屬類別: 儀表常識

該資訊的關鍵詞為:

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