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手持式水流測速儀 我有新說法
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【LS300-B】手持式水流測速儀，作為現代水文監測領域的得力助手，以其便攜性、高精度和多功能性等特點，受到了廣泛的關注和應用。這款設備設計緊湊、輕盈，操作簡單，能夠實時測量并顯示水流速度數據，為水文預報、水資源管理以及水利工程規劃等領域提供了重要的數據支持。

LS300-B型便攜式流速流量儀（簡稱便攜式流速儀）是專門為水文站、廠礦、環保監測站、農田排灌、水文地質調查等部門在野外進行明渠流速流量測量而研制的。

LS300-B型便攜式流速流量儀可搭配流速傳感器使用，該傳感器旋漿螺旋角、螺距、制作工藝和材料等分別進行了重新設計。測量明渠流速流量等參數。

一、設備清單      

①流速傳感器、②信號連接器、③流速測算儀、④充電頭、⑤數據線

二、設備參數

流速測算儀
名稱參數
電池6000mAh
充電器5V 2.5A
數據接口Type-C
屏幕尺寸2.8寸TFT
數據存儲6MB MSC
工作溫度0℃-50℃


流速傳感器
名稱參數
起轉速度0.03m/s
公式范圍0.01—4.00m/s（可到5.00m/s）
供電電壓3.3V
測算誤差≤1.5%
測量深度410mm

三、測量原理

流速測量：流速儀在水力推動下，其內置信號裝置產生轉數信號。從而，可根據某個單位時段內流速儀產生的信號總數，由以下公式計算出流速：v=a+b*R/T（m/s）（自動計算）

v一測流時段內平均流速（m/s）

b一旋槳（或旋杯）水力螺距（m）

a一常數（m/s）

T一測流歷時（s）

R—T時段內流速儀轉子的總轉數

對某個個體流速儀來說，b和a為定值。因此，測流時,只要測出T和R值，即可計算出流速。

流量測量：輸入被測斷面類型，并手工輸入（或者通過輔助傳感器測量）規則斷面的水位、寬度計算斷面面積，儀表更具Q=V*S測算流速Q值

參考資料

參考資料編輯區域


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