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超聲波液位計是一種非接觸式儀表,不跟料體直接接觸,因此故障率低。儀表提供多種安裝方式。儀表的所有輸入、輸出線均具有防雷、防短路的保護功能。超聲波液位計是由高性能的微處理器處理信號的數字式物位儀表。在測量中,超聲波脈沖由傳感器(換能器)發(fā)出,聲波經物體表面反射后被同一傳感器接收,由接收電路,濾波電路,包絡電路,轉換成處理器可識別的電信號,處理器記錄下超聲波發(fā)射和接收之間的時間,從而計算出傳感器到被測物體的距離。 由于采用非接觸的測量,被測介質幾乎不受限制,可廣泛用于各種液體和固體物料高度的測量。