原文传递
Cavity Perturbation Technique of 10-GHz Cylindrical Resonator for Measuring Dielectric Properties of Materials at Very High Temperatures.
| 题名： | Cavity Perturbation Technique of 10-GHz Cylindrical Resonator for Measuring Dielectric Properties of Materials at Very High Temperatures. |
| 作者： | Arida, M. |
| 关键词： | Dielectric permittivity, Perturbations, Cavity resonators, Radomes, Hypersonic vehicles, Simulations, Microwaves, Computational modeling, Temperature |
| 摘要： | Dielectric properties of candidate materials for hypersonic vehicle radomes, which can reach above 1,500 degrees Celsius, are required. Although there has been recent study for temperature dependence of dielectric constants, little is known near or above 1,500 degrees Celsius. Current research uses laboratory-sized furnaces to achieve these temperatures, but this also requires large-sized and expensive samples. To reduce these costs, this thesis modeled a rectangular waveguide aperture-coupled to a 1.016cm-height, 1.1415cm-radius cylindrical cavity designed to operate at a resonant frequency of 10GHz. It utilized the electromagnetic cavity-perturbation method to optimize the research of small dielectric disk samples. The objective was to model a much smaller system, produce an empirical relationship between cavity resonance and the sample's dielectric constant, and create a prototype of the design to validate this concept. It was found that a disk of 150 microns thickness and small radius, positioned at the center of the cavity, is a viable geometry to produce sensitivity required to conduct dielectric measurements as a function of temperature. |
| 报告类型： | 科技报告 |
相关文献
- Dielectric Detection Using Resonant Radio-Frequency Waves in an Electromagnetic Cavity Device.
- Dielectric Detection Using Resonant Radio-Frequency Waves in an Electromagnetic Cavity Device.
- CHARACTERIZING PROPERTIES OF ASPHALT CEMENT AT COLD TEMPERATURES.
- Chemical Interactions Between Metallic SFR Fuel and Advanced Claddings
- Effect of Kraft Cellulose Processing on High Strain Rate Behavior of Radford Propellant Development-596 Gun Propellant.
- CRITICAL EVALUATION OF ASPHALT MODIFICATION USING STRATEGIC HIGHWAY RESEARCH PROGRAM CONCEPTS.
检索历史
应用推荐
