Improvement of a dual-sensor horizontal penetrometer by incorporating an EC sensor

被引：24

作者：

Zeng, Q. ^{[1
]}

Sun, Y. ^{[1
]}

Lammers, P. Schulze ^{[2
]}

Ma, D. ^{[1
]}

Lin, J. ^{[3
]}

Hueging, H. ^{[4
]}

机构：

[1] China Agr Univ, Res Ctr Precis Farming, Beijing 100083, Peoples R China

[2] Univ Bonn, Dept Agr Engn, D-53115 Bonn, Germany

[3] Beijing Forestry Univ, Sch Technol, Beijing 100083, Peoples R China

[4] Univ Bonn, Inst Crop Sci & Resource Conservat, D-53115 Bonn, Germany

来源：

COMPUTERS AND ELECTRONICS IN AGRICULTURE | 2008年 / 64卷 / 02期

关键词：

On-the-go measurement; EC sensor; Triple-sensor horizontal; penetrometer;

D O I：

10.1016/j.compag.2008.05.012

中图分类号：

S [农业科学];

学科分类号：

09 ;

摘要：

Following the development of a dual-sensor horizontal penetrometer for the simultaneous measurements of soil water content and strength, an electrical conductivity (EC) sensor with a 4-ring Wenner-array was incorporated into the cone of the horizontal penetrometer. In order to overcome the cross-modulation of signals from water content and EC sensors, two filters with specific pass-bands were connected in each circuitry. Both laboratory calibration and field test were conducted, and the experimental results showed that the improved technique could provide more informative data to interpret soil physical conditions at fieldscale. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：333 / 337

页数：5

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