相关实验视频
Updated: Jun 17, 2025

06:14
Simulating Imaging of Large Scale Radio Arrays on the Lunar Surface
Published on: July 30, 2020
4.9K
关于EAC-1A和JSC-2A月球规石模拟剂的电磁特性
David Ramos Somolinos1, Borja Plaza Gallardo1, José Cidrás Estévez2
1Radiofrequency Area, National Institute for Aerospace Technology (INTA), 28850 Madrid, Spain.
Materials (Basel, Switzerland)
|August 10, 2024
概括
这项研究测量了月球规石模拟剂EAC-1A和JSC-2A的电磁性质. 这些发现为在月球上开发基于微波的现场资源利用 (ISRU) 设备提供了关键数据.
科学领域:
- 材料科学 材料科学 材料科学
- 电磁学 电磁学 电磁学 电磁学
- 行星科学 行星科学
背景情况:
- 在月球上的现场资源利用 (ISRU) 需要具有特定电磁性质的材料.
- 精确地描述月球规石模拟剂对于开发基于微波的ISRU技术至关重要.
研究的目的:
- 测量月球规律模拟器EAC-1A和JSC-2A复杂的电容性和介电损失触点.
- 提供数据,以便将这些模拟剂相互比较,并与真实的月球样本进行比较.
- 评估湿度和密度对仿真剂电磁性质的影响.
主要方法:
- 使用两种非共振技术进行测量:开端同轴探头 (OECP) 和传输线.
- 商业套件DAK和EpsiMu被用于测量.
- 复杂的电容性和介电损失触点在环境温度下在400MHz至20GHz的频率范围内被测量.
主要成果:
- 对于EAC-1A和JSC-2A模拟器来说,以频率 (f) 为函数的允许度 (ε') 和损失触点 (tanδe) 的经验方程.
- 对于EAC-1A的通透度值: ε'=-0.0432f+4.0397.7. 这就是EAC-1A的通透度值.
- 对于JSC-2A的允许度值: ε'=-0.0432f+4.0397.7. 这里是 JSC-2A 的允许度值.
- 对于EAC-1A的损失触角值:tanδe=-0.0015f+0.0659.0 这就是EAC-1A的损失触角值.
- 对于JSC-2A的损失触角值:tanδe=-0.0039f+0.1429. 这就是损失的触角值.
结论:
- 该研究成功地描述了EAC-1A和JSC-2A月球 regolith模拟剂的电磁性质.
- 获得的数据对于设计和开发用于月球应用的基于微波的ISRU设备非常有价值.
- 纳入样品湿度和密度的进一步研究提供了对模拟剂行为的更全面的理解.
相关概念视频
Atomic Emission Spectroscopy: Lab
152
AES is a powerful analytical technique, especially effective when used with plasma sources, producing abundant spectra in characteristic emission lines. The Inductively Coupled Plasma (ICP), in particular, yields superior quantitative analytical data due to its high stability, low noise, low background, and minimal interferences under optimal experimental conditions. However, newer air-operated microwave sources are emerging as promising alternatives that could be more cost-effective than...
152
Atomic Emission Spectroscopy: Overview
1.7K
Atomic emission spectroscopy (AES) is an analytical technique used to determine the elemental composition of a sample by analyzing the light emitted from excited atoms. In AES, atoms in a sample are excited to higher energy levels by thermal energy from high-temperature sources, such as plasma, arcs, or sparks. When these excited atoms return to lower energy states, they emit light at specific wavelengths characteristic of each element. The resulting atomic emission spectrum, which consists of...
1.7K
Scanning Electron Microscopy
4.2K
A scanning electron microscope (SEM) is used to study the surface features of a sample by using an electron beam that scans the sample surface in a two-dimensional manner. Typically, areas between ~1 centimeter to 5 micrometers in width can be imaged. SEM can be used to image bacteria, viruses, tissues as well as larger samples like insects. Conventional SEM gives a magnification ranging from 20X to 30,000X and spatial resolution of 50 to 100 nanometers.
Fundamental Principles
Accelerated...
Fundamental Principles
Accelerated...
4.2K
Inductively Coupled Plasma Atomic Emission Spectroscopy: Instrumentation
201
Inductively coupled plasma (ICP) is the common plasma source used in atomic emission spectroscopy (AES), a technique that detects and analyzes various elements in a sample. This method is often called inductively coupled plasma atomic emission spectroscopy (ICP-AES).
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
There are three main types of inductively coupled plasma atomic emission spectroscopy (ICP-AES) instruments: sequential, simultaneous multichannel, and Fourier transform instruments, with the latter being less commonly used....
201

