期刊论文

中文

物理实验

1005-4642

2003

23

9

30-31+34

10.3969/j.issn.1005-4642.2003.09.010

本校为第一机构

利用音乐集成块作声源,通过功放电路放大声音,并利用闪烁电路指示声电装置通电,制作了声电隔音装置,该自制装置可生动地演示真空不能传声实验.

Using music integrated package as sound source, enlarging sound by power amplifier, and using scintillating circuit to indicate the device's on off state, a sound electric device is made up. This self made device can demonstrate the inability of tra...