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雷達液位計 我有新說法
2038 0

  雷達物位天線發(fā)射較窄的微波脈沖,經(jīng)天線向下傳輸。微波接觸到被測介質表面后被反射回來再次被天線系統(tǒng)接收,將信號傳輸給電子線路部分自動轉換成物位信號(因為微波傳播速度快,電磁波到達目標并經(jīng)反射返回接收器這一來回所用的時間幾乎是瞬間的)。

目錄

  雷達物位天線發(fā)射較窄的微波脈沖,經(jīng)天線向下傳輸。微波接觸到被測介質表面后被反射回來再次被天線系統(tǒng)接收,將信號傳輸給電子線路部分自動轉換成物位信號(因為微波傳播速度快,電磁波到達目標并經(jīng)反射返回接收器這一來回所用的時間幾乎是瞬間的)。

  應用:耐溫、耐壓、輕微腐蝕的液體

  測量范圍:30米

  過程連接:螺紋、法蘭

  介質溫度:-40~250℃

  過程壓力:-0.1~4.0MPa

  精度:±3mm

  防護等:IP67

  頻率范圍:26GHz

  防爆等:ExiaⅡC T6 Ga/Exd ia IIC T6 Gb

  信號輸出:4...20mA/HART(兩線/四線)RS485/Mod bus

  天線尺寸小,便于安裝;非接觸雷達,無磨損,無污染。

  幾乎不受腐蝕、泡沫影響;幾乎不受大氣中水蒸氣、溫度和壓力變化影響。

  嚴重粉塵環(huán)境對高頻物位計工作影響不大。

  波長更短,對在傾斜的固體表面有更好的反射。

  波束角小,能量集中,增強了回波能力的同時又有利于避開干擾物。

  測量盲區(qū)更小,對于小罐測量也會取得良好的效果。

  高信噪比,即使在波動的情況下也能獲得更優(yōu)的性能。

  高頻率,是測量固體和低介電常數(shù)介質。

參考資料

參考資料編輯區(qū)域


目錄

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量程:70m
測量精度:±3mm
天線材料:不銹鋼316L喇叭/PTFE振子
天線結構:尖-錐形振子
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