公开(公告)号：US20050212532A1

公开(公告)日：2005-09-29

申请号：US11135780

申请日：2005-05-24

Applicant: Ruth Bernhard

Inventor： Ruth Bernhard

IPC: G01N27/22 ,  G01N33/24 ,  G01R27/26

CPC classification number: G01N27/223 ,  G01N33/246

Abstract: In a method and device for determining the moisture content and conductivity in the ground and in bulk materials, a capacitive sensor is disposed in the ground or the bulk material, the sensor is charged from a constant external voltage supply with a given initial current from a given first voltage threshold value to a given second voltage threshold value and either a voltage/time diagram is determined or a first charging time required for charging the sensor from the first to the second voltage threshold values by the constant external voltage supply is determined and a second charging time is determined wherein either the initial current and/or at least one of the two voltage threshold values are altered and the water content and the conductivity are determined by verification of the two charging times or of the voltage/time diagram.

Abstract translation: 在用于确定地面和散装材料中的水分含量和电导率的方法和装置中，电容传感器设置在地面或散装材料中，传感器从具有给定初始电流的恒定外部电压源从一个 给定给定的第二电压阈值的第一电压阈值，并且确定电压/时间图，或者确定由恒定的外部电压源从第一电压阈值到第二电压阈值对传感器充电所需的第一充电时间， 确定第二充电时间，其中初始电流和/或两个电压阈值中的至少一个被改变，并且通过验证两个充电时间或电压/时间图来确定水含量和电导率。

公开(公告)号：US07126352B2

公开(公告)日：2006-10-24

申请号：US11135780

申请日：2005-05-24

Applicant: Ruth Bernhard

Inventor： Ruth Bernhard

IPC: G01R27/26

CPC classification number: G01N27/223 ,  G01N33/246

Abstract: In a method and device for determining the moisture content and conductivity in the ground and in bulk materials, a capacitive sensor is disposed in the ground or the bulk material, the sensor is charged from a constant external voltage supply with a given initial current from a given first voltage threshold value to a given second voltage threshold value and either a voltage/time diagram is determined or a first charging time required for charging the sensor from the first to the second voltage threshold values by the constant external voltage supply is determined and a second charging time is determined wherein either the initial current and/or at least one of the two voltage threshold values are altered and the water content and the conductivity are determined by verification of the two charging times or of the voltage/time diagram.

Abstract translation: 在用于确定地面和散装材料中的水分含量和电导率的方法和装置中，电容传感器设置在地面或散装材料中，传感器从具有给定初始电流的恒定外部电压源从一个 给定给定的第二电压阈值的第一电压阈值，并且确定电压/时间图，或者确定由恒定的外部电压源从第一电压阈值到第二电压阈值对传感器充电所需的第一充电时间， 确定第二充电时间，其中初始电流和/或两个电压阈值中的至少一个被改变，并且通过验证两个充电时间或电压/时间图来确定水含量和电导率。