A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential
Soil matric potential is an important parameter for agricultural and environmental research and applications. In this study, we developed a novel sensor to determine fast and in-situ the soil matric potential. The probe of the soil matric potential sensor comprises a perforated coaxial stainless ste...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-06-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/19/11/2626 |
| _version_ | 1797999138626863104 |
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| author | Chao Chen Xiaofei Yan Qiang Xu Song Yu Yihan Ma Xianglin Cheng Zhongyi Wang Qiang Cheng |
| author_facet | Chao Chen Xiaofei Yan Qiang Xu Song Yu Yihan Ma Xianglin Cheng Zhongyi Wang Qiang Cheng |
| author_sort | Chao Chen |
| collection | DOAJ |
| description | Soil matric potential is an important parameter for agricultural and environmental research and applications. In this study, we developed a novel sensor to determine fast and in-situ the soil matric potential. The probe of the soil matric potential sensor comprises a perforated coaxial stainless steel cylinder filled with a porous material (gypsum). With a pre-determined gypsum water retention curve, the probe can determine the gypsum matric potential through measuring its water content. The matric potential of soil surrounding the probe is inferred by the reading of the sensor after the soil reaches a hydraulic equilibrium with the gypsum. The sensor was calibrated by determining the gypsum water retention curve using a pressure plate method and tested in three soil samples with different textures. The results showed that the novel sensor can determine the water retention curves of the three soil samples from saturated to dry when combined with a soil water content sensor. The novel sensor can respond fast to the changes of the soil matric potential due to its small volume. Future research could explore the application for agriculture field crop irrigation. |
| first_indexed | 2024-04-11T10:59:49Z |
| format | Article |
| id | doaj.art-9d58481303ed47dbbaf901bd576481b3 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T10:59:49Z |
| publishDate | 2019-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-9d58481303ed47dbbaf901bd576481b32022-12-22T04:28:40ZengMDPI AGSensors1424-82202019-06-011911262610.3390/s19112626s19112626A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric PotentialChao Chen0Xiaofei Yan1Qiang Xu2Song Yu3Yihan Ma4Xianglin Cheng5Zhongyi Wang6Qiang Cheng7College of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaSchool of Technology, Beijing Forestry University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaCollege of Information and Electrical Engineering, China Agricultural University, Beijing 100083, ChinaSoil matric potential is an important parameter for agricultural and environmental research and applications. In this study, we developed a novel sensor to determine fast and in-situ the soil matric potential. The probe of the soil matric potential sensor comprises a perforated coaxial stainless steel cylinder filled with a porous material (gypsum). With a pre-determined gypsum water retention curve, the probe can determine the gypsum matric potential through measuring its water content. The matric potential of soil surrounding the probe is inferred by the reading of the sensor after the soil reaches a hydraulic equilibrium with the gypsum. The sensor was calibrated by determining the gypsum water retention curve using a pressure plate method and tested in three soil samples with different textures. The results showed that the novel sensor can determine the water retention curves of the three soil samples from saturated to dry when combined with a soil water content sensor. The novel sensor can respond fast to the changes of the soil matric potential due to its small volume. Future research could explore the application for agriculture field crop irrigation.https://www.mdpi.com/1424-8220/19/11/2626soil matric potentialfrequency domainperforated coaxial cylinderin-situ measurement |
| spellingShingle | Chao Chen Xiaofei Yan Qiang Xu Song Yu Yihan Ma Xianglin Cheng Zhongyi Wang Qiang Cheng A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential Sensors soil matric potential frequency domain perforated coaxial cylinder in-situ measurement |
| title | A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential |
| title_full | A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential |
| title_fullStr | A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential |
| title_full_unstemmed | A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential |
| title_short | A Novel Frequency Domain Impedance Sensor with a Perforated Cylinder Coaxial Design for In-Situ Measuring Soil Matric Potential |
| title_sort | novel frequency domain impedance sensor with a perforated cylinder coaxial design for in situ measuring soil matric potential |
| topic | soil matric potential frequency domain perforated coaxial cylinder in-situ measurement |
| url | https://www.mdpi.com/1424-8220/19/11/2626 |
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