公开(公告)号：US3727464A

公开(公告)日：1973-04-17

申请号：US3727464D

申请日：1972-04-14

Applicant: PRO TECH INC

Inventor： RUTKOWSKI M ,  STANLEY R

IPC: G01N1/10 ,  G01N1/14

CPC classification number: G01N1/14 ,  G01N2001/1043

Abstract: Repetitive sampling of liquid from a body thereof is controlled in frequency, dependent upon the depth of the liquid being sampled, so as to accord with the volume of the body thereof. Such depth-proportioning is accomplished, in a system using pressurized gas as a propulsion fluid and determining sampling frequency by gradual release thereof from a source to accumulate to a switching pressure at a given location, through bleeding off part of the accumulating gas against the back pressure of the depth of liquid. Principal uses are in stream monitoring for pollution control, in sewage treatment facilities, and in industrial waste reduction programs.

Abstract translation: 液体从其体内的重复取样频率被控制，取决于被取样的液体的深度，以便与其体积的体积一致。 这种深度比例是在使用加压气体作为推进流体的系统中实现的，并且通过将来自源的逐渐释放来确定采样频率，以通过将部分积聚气体排放到背部而将其积聚到给定位置处的切换压力 液体深度的压力。 主要用途是污染控制，污水处理设施和工业废物减少计划的流量监测。