摘自
http://www.haystack.mit.edu/

Versatile System for Learning about Radio Telescopes
多功能学习射电望远镜的系统
An introduction to a Very Small Radio Telescope (VSRT) interferometer system
and a series of experiments to learn about radio waves and their properties.
By Stephen Minnigh and Michael Doherty
一个关于迷你射电望远镜（VSRT）干涉仪系统介绍和一系列的实验的介绍，以了解无线电波和它们的特性。斯蒂芬Minnigh和迈克尔·多尔蒂


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总目录
http://www.haystack.mit.edu/edu/pcr/vsrt-ret/Files/VSRT.pdf
TABLE of CONTENTS
目录
• This unit brings the exploration of radio waves into the classroom throughthe use of the Very Small Radio Telescope (VSRT). The VSRT system can beassembled by the user from commercially available parts for less than $500.
这个项目提供了在教室通过使用的很小射电望远镜（vsrt）探索无线电波的方法。该系统花费低于500美元。
• The unit consists of various activities and experiments that are appropriatein varying degrees
for grades 8-12. These hands-on, inquiry-based activities are an excellentintroduction to the
concept of invisible electromagnetic radiation.
该项目包括各种活动和实验，适合于8-12年级的学生。这些动手探究活动很好的介绍了无形的电磁辐射。
• These materials are appropriate for physics classes by experimenting with thetransmission,
absorption, propagation, polarization and interference of radio waves (notvisible light) emitted
by a compact fluorescent lamp (CFL).
该项目适用于物理课关于无线电波（不可见光）的传输、吸收、传导、极化、干涉的实验，通过一个紧凑型荧光灯（CFL）。
• Use in a general science classroom would include comparing the transmissionof light and radio
waves through various materials as well as learning about the polarization ofboth visible light
sources and radio waves from a CFL.
在普通的科学教室使用它和一个紧凑型荧光灯，就能比较光传播和无线电波穿过各种材料的异同，并学习可见光和无线电波的极化。

总目录
http://www.haystack.mit.edu/edu/pcr/vsrt-ret/Files/VSRT.pdf
TABLE of CONTENTS
目录
• This unit brings the exploration of radio waves into the classroom throughthe use of the Very Small Radio Telescope (VSRT). The VSRT system can beassembled by the user from commercially available parts for less than $500.
这个项目提供了在教室通过使用的很小射电望远镜（vsrt）探索无线电波的方法。该系统花费低于500美元。
• The unit consists of various activities and experiments that are appropriatein varying degrees
for grades 8-12. These hands-on, inquiry-based activities are an excellentintroduction to the
concept of invisible electromagnetic radiation.
该项目包括各种活动和实验，适合于8-12年级的学生。这些动手探究活动很好的介绍了无形的电磁辐射。
• These materials are appropriate for physics classes by experimenting with thetransmission,
absorption, propagation, polarization and interference of radio waves (notvisible light) emitted
by a compact fluorescent lamp (CFL).
该项目适用于物理课关于无线电波（不可见光）的传输、吸收、传导、极化、干涉的实验，通过一个紧凑型荧光灯（CFL）。
• Use in a general science classroom would include comparing the transmissionof light and radio
waves through various materials as well as learning about the polarization ofboth visible light
sources and radio waves from a CFL.
在普通的科学教室使用它和一个紧凑型荧光灯，就能比较光传播和无线电波穿过各种材料的异同，并学习可见光和无线电波的极化。

Introduction
介绍
National and Massachusetts EducationStandards:
国家教育标准：
VSRT Introduction, Installation andOperation Instructions:
vsrt介绍，安装和操作说明书:
•VSRT Introduction
vsrt介绍
•VSRT Assembly Manual
vsrt大会手册
•VSRT Software Installation Instructions(Available at www.haystack.mit.edu website)
vsrt软件安装说明（可在www.haystack.mit.eduzhaodao找到）
•Basic VSRT Operation
基本vsrt操作
Unit #1 -Transmission
单元1 -传输
•Activity -Radio Wave Opacity
活动-无线电的不透明性
•Experiment-Exponential Absorption
实验-指数吸收
o Sample Data
样本数据
Unit #2-Wave Spreading (Inverse Square Law 1/r²)
单元2波的传播（平方反比定律1 /r）
•Experiment -Inverse Square Law
实验-平方反比定律
o Sample Data
样本数据
Unit #3 -Polarization
单元3偏振
•Activity-Polarized or Unpolarized
活动-极化和非极化
•Experiment -Malus’ Law
实验-马吕斯定律
o Sample Data
样本数据
Unit #4 -Interference
干扰
•Experiment -Measurementof Wavelength of Radio Waves
实验-无线电波波长测量法
o Sample Data
样本数据
•Experiment - Angular Width of Sun -Advanced Lab using Airy &Bessel Functions
实验-太阳角宽度-先进的实验室用艾里-贝塞尔函数
o Sample Data
样本数据
Additional VSRT Documents (available at www.mit.haystack.edu)
额外的VSRT文件（可在www.mit.haystack.edu找到）
o Listing of VSRT and MOSAICMemo Series - Alan EE Rogers (MIT Haystack Observatory)
VSRT和 MOSAIC的备忘录列表-艾伦罗杰斯（麻省理工学院的天文台）
o #6 •Tests of compactfluorescent lamp as microwave sources
紧凑型荧光灯作为微波源的测试
o #8 • Laboratorydemonstration projects
实验室示范项目
o #12 •Science ideas for a single baselineVSRT
单基线vsrt的科学理念
o #17 •Tests and laboratory demonstrationswith a single LNB
单高频头的试验和实验室演示
o #25 •Laboratory demonstrations /experiments
实验室演示实验
o #26 •Calibration of 2-elementinterferometer
2元校准干涉仪
o #28 •Simplest laboratory set-up todemonstrate the principles of radio interferometry
最简单的设置证明无线电干涉的原理
o #30 •REVISED: Simple set-up to observefringes on Sun & measure the solar diameter
修订：简单的设置以观察太阳条纹并测量太阳直径
o #32 •Polarization demonstration usingVSRT
使用vsrt演示偏振
o #36 •Microwave properties of water andice
水和冰的微波特性
o #41 •Satellite TV dish offset geometry
卫星电视天线的几何偏移
o #47 •Parts for basic VSRT
基本vsrt配件
Acknowledgements
鸣谢
MIT Haystack Observatory
麻省理工学院的天文台
※相关下载http://www.haystack.mit.edu/edu/pcr/vsrt-ret/index.html※

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