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    • 超聲波液位計原理定義
    • 本站編輯:杭州特力聲科技有限公司發布日期:2020-01-30 14:16 瀏覽次數:

    超聲波液位計,物位的定義:“物位”一詞統指各種設備和敞開或密閉的容器中液體或固體物料的表面位置。對應不同性質的物料又有以下的定義:

    201611281618202816.jpg

      1、液位指設備和容器中液體介質表面的高低.

      2、料位指設備和容器中所儲存的塊狀,顆?;蚍勰罟腆w物料的堆積高度.

      3、界位指相界面位置:容器中兩種互不相溶的液體,因其重度不同而形成分界面,為液-液相界面;容器中互不相溶的液體和固體之間的分界面,為液-固相界面.液-液,液-固相界面的位置簡稱界位。

     物位是液位,料位,界位的總稱.對物位進行測量,指示和控制的儀表,稱物位檢測儀表。物位檢測儀表的分類:由于被測對象種類繁多,檢測的條件和環境也有很大差別,所以物位檢測的方法有多種多樣,以滿足不同生產過程的測量要求.物位檢測儀表按測量方式可分為連續測量和定點測量兩大類.連續測量方式能持續測量物位的變化(連續量,輸出標準連續量信號)定點測量方式則只檢測物位是否達到上限,下限或某個特定位置,定點測量儀表一般稱為物位開關(點位,輸出開關量信號)按工作原理分類,物位檢測儀表有直讀式,靜壓式,浮力式,機械式,電氣式等。

    Ultrasonic level gauge, definition of material level: the term "material level" refers to the surface position of liquid or solid materials in various equipment and open or closed containers. There are the following definitions for materials of different properties:

    1. Liquid level refers to the height of liquid medium surface in equipment and container

    2. Material level refers to the stacking height of block, particle or powder solid materials stored in equipment and containers

    3. Boundary position refers to the position of the phase interface: two kinds of mutually insoluble liquids in the container form the composition interface due to their different gravity, which is the liquid-liquid interface; the interface between mutually insoluble liquids and solids in the container is the liquid-solid interface. The position of the liquid-liquid and liquid-solid interface is abbreviated as the boundary position.

    Material level is the general term of liquid level, material level and boundary level. It is the instrument for measuring, indicating and controlling the material level, which is called material level detection instrument. Classification of level measuring instruments: due to the wide variety of objects to be measured and the different testing conditions and environments, there are various methods of level detection to meet the measurement requirements of different production processes. Level measuring instruments can be divided into two categories: continuous measurement and fixed-point measurement. Continuous measurement can continuously measure the change of level (continuous quantity, continuous output standard The fixed-point measuring method only detects whether the material level reaches the upper limit, lower limit or a specific position. The fixed-point measuring instrument is generally called the material level switch (point position, output switch signal) according to the working principle. The material level measuring instrument has direct reading type, static pressure type, buoyancy type, mechanical type, electrical type, etc

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