论文标题
用原子力显微镜看到原子
Seeing atoms with an atomic force microscope
论文作者
论文摘要
在这项活动中，学生将建立一个原子力显微镜（AFM）的工作模型。连接到紧凑盘（CD）带的永久磁铁充当传感器。传感器连接到由乐高积木制成的底座上。激光光从CD传感器中反射到一张光敏纸上。连接到纸板上的一系列永久磁体充当表面上的原子。当传感器被带到该原子表面附近时，磁铁将偏转传感器，从而使反射激光偏转。该挠度记录在光敏纸上，学生可以将其带回家。
In this activity, students will make a working model of an atomic force microscope (AFM). A permanent magnet attached to a compact disc (CD) strip acts as the sensor. The sensor is attached to a base made from Legos. Laser light is reflected from the CD sensor and onto a sheet of photosensitive paper. An array of permanent magnets attached to cardboard acts as the atoms on a surface. When the sensor is brought near this atomic surface the magnets will deflect the sensor, which in turn deflects the reflected laser. This deflection is recorded on the photosensitive paper, which students can take home with them.
