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首页> 外文期刊>Sensor Letters: A Journal Dedicated to all Aspects of Sensors in Science, Engineering, and Medicine >Evaluation of the High-Frequency Capacitance Sensor for Measuring Soil Moisture
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Evaluation of the High-Frequency Capacitance Sensor for Measuring Soil Moisture

机译：用于土壤水分测量的高频电容传感器的评估

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摘要

We address the relationship between the electrical properties of water content to determine soil humidity. This study, from innovation adoption perspective, is based on the analysis of basic theories of capacitance sensor. For this principle, a high-frequency fringing electric field (FEF) - capacitance based soil humidity sensor was introduced. Typically, the sensor was calibrated to measure the volumetric water content (VWC). Experiments were conducted on standard samples from 1% to 28.2% VWC to show varying output frequency of soil moisture. Thus sensor response equation, with an R-square of 0.9697 and a 95% confidence bound, was obtained. Comparing the relative changes of the same sample with the data illustrated by a benchmark sensor, the experimental results showed unanimous in stability and accuracy for commercial use. With the calibration and standardization of the system, a device for defining the soil water status will be available, which served the process of dampness-testing laboratory. Its main advantage is to monitor soil's moisture in a fast and accurate way.
机译：我们解决了含水量的电学特性之间的关系，以确定土壤湿度。从创新采用的角度出发，本研究基于对电容传感器基本理论的分析。基于此原理，引入了高频边缘电场（FEF）-基于电容的土壤湿度传感器。通常，对传感器进行校准以测量体积水含量（VWC）。对1％至28.2％VWC的标准样品进行了实验，以显示土壤水分输出频率的变化。因此，获得具有0.9697的R平方和95％置信区间的传感器响应方程。将相同样品的相对变化与基准传感器显示的数据进行比较，实验结果显示出商业用途的稳定性和准确性是一致的。随着系统的校准和标准化，将提供一种用于定义土壤水状态的设备，该设备可用于湿度测试实验室。它的主要优点是可以快速准确地监控土壤的水分。

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