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2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)最新文献

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A Robust Soil Water Potential Sensor with High Sensitivity and Broad Measuring Range 一种高灵敏度、宽测量范围的土壤水势传感器
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508320
David Menne, C. Hübner, D. Trebbels, N. Willenbacher
{"title":"A Robust Soil Water Potential Sensor with High Sensitivity and Broad Measuring Range","authors":"David Menne, C. Hübner, D. Trebbels, N. Willenbacher","doi":"10.1109/ISEMA49699.2021.9508320","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508320","url":null,"abstract":"Agriculture is by far the largest consumer of water worldwide. Soil moisture sensors contribute to the sustainable use of this scarce resource. So far, these devices only measure how much water is present in the soil. The decisive factor, however, is how much water the plants can draw from the soil with their roots, which depends heavily on the composition of the soil. This is the reason why we developed a novel sensor for soil water potential (SWP) measurement. The sensor consists of a highly porous ceramic disc and a new circuit board system for detecting the change in dielectric response of the ceramic discs with changing water uptake. The ceramic was tailored using a novel processing route [1], based on so-called capillary suspensions as precursors, allowing the production of highly open-porous ceramics with characteristic pore size distribution and high mechanical strength. Two different kieselguhr powders were used as ceramic sintering material because they allowed the reproducible fabrication of defect-free sensor discs with high shape accuracy at low sintering temperatures. Ceramic discs with open porosities ranging from 58 to 69 % and broad pore size distributions with pore sizes ranging from 0.5 to 200 µm were manufactured for this new sensor. Drying experiments were carried out in air, in a model soil and in field experiments demonstrating the feasibility and improved sensitivity of the setup.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131120369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Effect of Stress on the Effective Dielectric Permittivity of a Silty Clay Soil 应力对粉质粘土有效介电常数的影响
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508339
H. Hailemariam, F. Wuttke
{"title":"Effect of Stress on the Effective Dielectric Permittivity of a Silty Clay Soil","authors":"H. Hailemariam, F. Wuttke","doi":"10.1109/ISEMA49699.2021.9508339","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508339","url":null,"abstract":"Geophysical approaches are nowadays widely used in many fields of geotechnical engineering and energy geotechnics in monitoring the temporal and spatial variations of moisture content and other soil parameters. As majority of these engineering projects are founded at underground levels of soil deposits which are subjected to significant overburden pressures from the soil itself and loads from the superstructure, understanding the influence of applied stress on the dielectric behavior of soils is of high significance. On this basis, the results of theoretical and experimental investigations of the effect of stress on the effective dielectric permittivity of an unsaturated silty clay soil from Germany performed using a non-destructive high frequency electromagnetic (HF-EM) technique are presented in this study. The findings show a significant dependence of the effective dielectric permittivity of the silty clay soil with effective stress, and a satisfactory match between the theoretical model prediction and the observed experimental data.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"168 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122085815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Relations Between Dielectric Permittivity and Volumetric Water Content of Living Soil 活土介电常数与体积含水量的关系
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508272
A. Szypłowska, Hironobu Saito, S. Yagihara, K. Furuhata, J. Szerement, M. Kafarski, A. Lewandowski, A. Wilczek, W. Skierucha
{"title":"Relations Between Dielectric Permittivity and Volumetric Water Content of Living Soil","authors":"A. Szypłowska, Hironobu Saito, S. Yagihara, K. Furuhata, J. Szerement, M. Kafarski, A. Lewandowski, A. Wilczek, W. Skierucha","doi":"10.1109/ISEMA49699.2021.9508272","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508272","url":null,"abstract":"Organic matter content may have significant influence on soil dielectric properties and also on the relations between soil dielectric permittivity and volumetric water content. Since soil contains a variety of living organisms, the organic matter can naturally change in time. The purpose of the research was to examine whether the natural changes in living soil affected dielectric properties. During the course of ten days, complex dielectric permittivity of six samples of moist soil was examined in the frequency range from 10 to 300 MHz. As a result, dielectric permittivity – volumetric water content relations were determined for each day. The time changes of the parameters of a fitted equation were described.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114069601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The Three-Rod Probe For Soil Moisture Gradient Measurements 用于土壤湿度梯度测量的三杆探针
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508288
M. Kafarski, A. Wilczek, A. Szypłowska, A. Lewandowski, J. Majcher, W. Skierucha
{"title":"The Three-Rod Probe For Soil Moisture Gradient Measurements","authors":"M. Kafarski, A. Wilczek, A. Szypłowska, A. Lewandowski, J. Majcher, W. Skierucha","doi":"10.1109/ISEMA49699.2021.9508288","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508288","url":null,"abstract":"The knowledge of soil moisture distribution is important for agriculture. In large areas many probes can be used to estimate soil moisture. However, in a very small areas using several moisture probes can be inconvenient and a good idea is to apply a single probe in order to avoid excess soil disturbance. For soil moisture distribution measurements, a three-rod time domain reflectometry probe was proposed. The presented probe has three switchable rods, each of which can work as a signal and the others as a ground. This solution enables measuring soil moisture gradient during a single insertion of the probe into the soil. The proposed approach was validated with the use of electromagnetic simulations.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131281732","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microwave Dielectric Response of Water in Solutions of Hemoglobin in Different States 不同状态血红蛋白溶液中水的微波介电响应
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508276
L. Latypova, A. Puzenko, A. Bogdanova, Y. Feldman
{"title":"Microwave Dielectric Response of Water in Solutions of Hemoglobin in Different States","authors":"L. Latypova, A. Puzenko, A. Bogdanova, Y. Feldman","doi":"10.1109/ISEMA49699.2021.9508276","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508276","url":null,"abstract":"In this work, dielectric response of water in solutions of hemoglobin (Hb) in its different states (MetHb, OxyHb and DeoxyHb) is considered. Dielectric response is interpreted in a unified manner by considering α(lnτ) dependence. It was shown that hydration of the protein is characterized by a mixed type of interaction. Moreover, a transition from a dipole-ion type of interaction to a dipole-dipole one occurs.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128947579","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Multi-Resonance Microwave Sensor for Moisture Monitoring: Review and Prospects 用于水分监测的多共振微波传感器:综述与展望
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508282
Johanna Peters, W. Taute, Florian Stern, Claas Döscher, J. Breitkreutz, R. Knöchel, M. Höft
{"title":"Multi-Resonance Microwave Sensor for Moisture Monitoring: Review and Prospects","authors":"Johanna Peters, W. Taute, Florian Stern, Claas Döscher, J. Breitkreutz, R. Knöchel, M. Höft","doi":"10.1109/ISEMA49699.2021.9508282","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508282","url":null,"abstract":"In this paper, the design of a novel multi-resonance microwave resonance sensor for moisture monitoring of pharmaceutical granulations is reviewed. This sensor allows a reliable determination of residual moisture directly in the production container. The reliably determinable measuring range could be extended from below 10% to at least 20% independent of other physical attributes and thus covers the complete moisture range typically occurring in fluid bed granulations. For this purpose, experimental prototypes with a novel electronic structure were developed. In order to enable the installation in the various granulators, prototypes with different dimensions of the sensor heads were realized. Within this publication, the measurement principle will be reviewed and prospects for the multi-resonance sensor will be provided.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131558248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Dielectrically Relaxing and Electrically Conducting Suspensions for Testing Water Content Sensors 用于测试含水量传感器的介电弛豫和导电悬浮液
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508307
Congying Wang, Wenyi Sheng, Jinghui Xu, D. A. Robinson, S. Jones
{"title":"Dielectrically Relaxing and Electrically Conducting Suspensions for Testing Water Content Sensors","authors":"Congying Wang, Wenyi Sheng, Jinghui Xu, D. A. Robinson, S. Jones","doi":"10.1109/ISEMA49699.2021.9508307","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508307","url":null,"abstract":"There are countless soil moisture sensors in use around the world, yet little information is available to users regarding sensor performance under various environmental conditions. We suggest here a standard for assessment of electromagnetic (EM) soil moisture sensors using dielectrically relaxing and lossy (electrically conductive) materials. These two properties represent the most challenging conditions found in, for example, heavy clay soils (vertisols), which can exhibit both dielectric relaxation at the measurement frequency and electrical conductivity (EC), characteristics which both vary with temperature. Users would benefit from evaluation and understanding of sensor performance under such conditions, especially when comparisons among sensors are available. We present a laboratory method using a silica flour suspension in glycerol as a reproducible test standard, to which salts may be added to include effects of ionic conductivity.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122087571","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultra-Broadband Dielectric Response of Water and its Aggregation States 水的超宽带介电响应及其聚集态
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508296
V. Artemov
{"title":"Ultra-Broadband Dielectric Response of Water and its Aggregation States","authors":"V. Artemov","doi":"10.1109/ISEMA49699.2021.9508296","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508296","url":null,"abstract":"The response of water to electromagnetic waves is critical for many areas of science, but it still hides many open questions regarding the microscopic dynamic structure of water, which is yet to be elucidated. Here, the broadband dielectric response of water, ice, heavy water and water vapor is discussed in the extended 0-1015 Hz frequency range, and a unified microscopic interpretation is provided for the main spectral features of all condensed phases of water. A simple analytical equation describing the spectra up to 10 THz is provided. Further questions on the dynamic structure of water are addressed.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116722495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accuracy-Enhanced Dielectric System for Solution Measurement 用于溶液测量的精度增强介电系统
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508336
L. Neves, G. Andía, T. Letertre, M. Cosker, A. Szypłowska, T. Antonakakis, P. Sabouroux
{"title":"Accuracy-Enhanced Dielectric System for Solution Measurement","authors":"L. Neves, G. Andía, T. Letertre, M. Cosker, A. Szypłowska, T. Antonakakis, P. Sabouroux","doi":"10.1109/ISEMA49699.2021.9508336","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508336","url":null,"abstract":"In this paper we present a new system based on the electromagnetic measurement of aqueous solutions, to accurately detect small substance concentrations in a liquid environment. Preliminary results show the possibility to detect extremely small substance concentration thresholds in the order of a milligram per liter, making the system a promising solution for high-accuracy liquid dielectric spectroscopy.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"385 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128033722","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Complex Permittivity of Mixtures of Sand With Aqueous NaCl Solutions Measured at 2.5 GHz 砂与NaCl水溶液混合物复介电常数在2.5 GHz下的测量
2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA) Pub Date : 2021-07-26 DOI: 10.1109/ISEMA49699.2021.9508327
J. Krupka, P. Kopyt, P. Czekala, B. Salski, K. Derzakowski, J. Mazierska
{"title":"Complex Permittivity of Mixtures of Sand With Aqueous NaCl Solutions Measured at 2.5 GHz","authors":"J. Krupka, P. Kopyt, P. Czekala, B. Salski, K. Derzakowski, J. Mazierska","doi":"10.1109/ISEMA49699.2021.9508327","DOIUrl":"https://doi.org/10.1109/ISEMA49699.2021.9508327","url":null,"abstract":"The complex permittivity of a quartz sand mixed with aqueous solutions of NaCl has been measured at frequency of 2.5 GHz employing dielectric ring resonator operating on TE01δ mode. Measurements have been taken for various concentrations of NaCl up to saturation at the temperature about 22 C. It has been shown that both the real part and the imaginary part of permittivity of the moist sand are strongly related to the dielectric properties of aqueous solution of NaCl. The real part of the complex permittivity of moist sand decreases, while the imaginary part of the complex permittivity increases with the NaCl concentration.","PeriodicalId":224651,"journal":{"name":"2021 13th International Conference on Electromagnetic Wave Interaction with Water and Moist Substances (ISEMA)","volume":"163 S3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132227630","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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