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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(jīng)過模型計算得到過水斷面平均流速,再結(jié)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(shù)得到流量,其中修正系數(shù)是根據(jù)實際測量環(huán)境得到的標準值進行計算得到。

  一、產(chǎn)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(jīng)過模型計算得到過水斷面平均流速,再結(jié)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(shù)得到流量,其中修正系數(shù)是根據(jù)實際測量環(huán)境得到的標準值進行計算得到。

  二、工作參數(shù)

  參 數(shù) 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(fā)射頻率 24.000 ~ 24.250GHz

  通訊接口 RS-232 / RS-485

  通訊協(xié)議 MODBUS-RTU / 自定義協(xié)議

  三、測量參數(shù)

  參 數(shù) 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(shù)

  參 數(shù) 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(tǒng)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(shù)字接口又具有模擬接口,兼容標準Modbus-RTU協(xié)議方便接入系統(tǒng);

  6、具備無線數(shù)據(jù)傳輸功能(選配)

  7、可獨立與現(xiàn)在運行中的城市水情、污水、環(huán)境自動測報系統(tǒng)聯(lián)機

  8、測速范圍寬,測量有效距離遠達10m

  9、多種觸發(fā)模式:周期、觸發(fā)、手動、自動

  10、安裝特別簡單,土建量很少

  11、全防水設(shè)計,適合野外使用

參考資料

參考資料編輯區(qū)域


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