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明渠雷達流量計 我有新說法
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　　明渠流量計主要由雷達流速計、雷達水位計組成，流速計用于采集流體表面流速，并經過模型計算得到過水斷面平均流速，再結合水位計測得的水位以及斷面信息算出過流斷面面積，從而利用公式流量=平均流速×過流斷面面積×修正系數得到流量，其中修正系數是根據實際測量環境得到的標準值進行計算得到。

　　一、產品說明

　　明渠流量計主要由雷達流速計、雷達水位計組成，流速計用于采集流體表面流速，并經過模型計算得到過水斷面平均流速，再結合水位計測得的水位以及斷面信息算出過流斷面面積，從而利用公式流量=平均流速×過流斷面面積×修正系數得到流量，其中修正系數是根據實際測量環境得到的標準值進行計算得到。

　　二、工作參數

　　參 數 說 明

　　供電電壓 直流7 ～ 28V

　　電流（12V供電） 正常工作時300mA左右，休眠小于1mA。

　　工作溫度 -35° ～ 70°

　　防水等 IP67

　　發射頻率 24.000 ～ 24.250GHz

　　通訊接口 RS-232 / RS-485

　　通訊協議 MODBUS-RTU / 自定義協議

　　三、測量參數

　　參 數 說 明

　　測速范圍 0.15 ～ 15m/s

　　測速精度 ±2%

　　速度分辨力 0.01m/s

　　測距范圍 0.4 ～ 40m

　　測距精度 ±1cm

　　距離分辨力 1mm

　　天線樣式 流速：14 x 32゜

　　水位：11 x 11゜

　　間隔時間 1 ～ 5000min

　　四、外觀參數

　　參 數 說 明

　　流量計尺寸（長×寬×高） 220×120×83.8mm

　　支架尺寸（長×寬×高） 100×100×100mm

　　重量 流量計+支架： 5.8kg

　　外殼材料 鍍鋅、不銹鋼板

　　五、儀器特點

　　1、非接觸、安全低損、少維護、不受泥沙影響

　　2、能勝任洪水期高流速條件下的測量

　　3、具有防反接、過電壓保護功能

　　4、系統功耗低，一般太陽能供電即可滿足測流需要

　　5、多種接口方式，既有數字接口又具有模擬接口，兼容標準Modbus-RTU協議方便接入系統;

　　6、具備無線數據傳輸功能（選配）

　　7、可獨立與現在運行中的城市水情、污水、環境自動測報系統聯機

　　8、測速范圍寬，測量有效距離遠達10m

　　9、多種觸發模式：周期、觸發、手動、自動

　　10、安裝特別簡單，土建量很少

　　11、全防水設計，適合野外使用

參考資料

參考資料編輯區域


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