Trial manufacture of simple scanning tunneling microscope for teaching the concept of atom

用于原子概念教学的简易扫描隧道显微镜的试制

• 批准号: 08558008
• 负责人: KOMIYAMA Masaharu
• 金额: $ 2.11万
• 依托单位: Yamanashi University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1998
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08558008/
• 关键词: scanning tunneling microscope; science education; concept of atom; scanning tunneling microscope; science education; concept of atom

Scanning tunneling microscope (STM) is a highly unique microscope that is capable of observing individual atoms under atmospheric conditions. This cap ability allows one to use it as a tool for providing the direct evidence of the existence of atoms in the study of the concept of atoms in the early stage of science education. Nevertheless, commecialization of STM has just began, and they are still designed for research purposes with inhibitingly high price tag for the use in classes. The present work aimed at building a simple, portable STM that can be used in classes for the teaching of the concept of atoms.The results obtained during the present project are as follows.(1) The most expensive parts of STM, viz., controllers and visualizers, are replaced by a normal personal computer that may be faound in any science classes. For this purpose a digital controll circuit is developed, with algorism for the control of STM.Its compativility with the present research grade STM mechanical head was examined.(2) Simple and sturdy portable STM was experimentally manufactured, and its compatibility with the above digital controll circuit was examined.(3) Thus a portable STM that gives stable graphite atomic images with easy operation was developed.

扫描隧道显微镜（STM）是一种高度独特的显微镜，能够在大气条件下观察单个原子。这种上限能力使人们可以将其用作在科学教育早期的原子概念研究中提供原子存在的直接证据的工具。然而，STM的家务刚刚开始，它们仍然是为了研究目的而设计的，可以抑制班级使用的高价。目前旨在构建一个简单的便携式STM的工作，可以在课堂中用于教学原子概念。（1）在任何科学课程中可能会在任何科学课程中都可以陷入困境的正常个人计算机。为此，开发了数字控制电路，以控制Stm的兼容性与本研究级STM机械头的兼容性。（2）（2）实验制造了简单且坚固的便携式STM，并检查了其与上述数字控制电路的兼容性。