Method and apparatus to control soil moisture matric potential
    2.
    发明授权
    Method and apparatus to control soil moisture matric potential 失效
    控制土壤水分基质势的方法和装置

    公开(公告)号:US4561294A

    公开(公告)日:1985-12-31

    申请号:US650737

    申请日:1984-09-14

    IPC分类号: G01N33/24 G01N19/10

    CPC分类号: G01N33/246

    摘要: An apparatus and method of use for controlling the matric potential of a porous sample in a liquid are described. The apparatus includes a cylindrical porous cup for holding the sample, the cup having an air entry value greater than the matric potential to be imparted to the sample, an outer vesicle adapted to define a chamber between the cup and vesicle for holding the liquid, and means for adjusting the pressure of the liquid in the chamber.

    摘要翻译: 描述了一种用于控制液体中多孔样品的基质电位的装置和方法。 该装置包括用于保持样品的圆柱形多孔杯,杯具有大于要赋予样品的基质电位的空气入口值,适于在杯和囊泡之间限定用于保持液体的室的外囊泡,以及 用于调节腔室中的液体的压力的装置。