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我们在教学中,用压电片制成土电吉它,在“乐音”的教学中,应用土电吉它配合 JSB—14型大屏幕示波器,演示乐音的音调、响度、音品三特性由什么决定,取得了较好的教学效果。这个演示,较之于教学参考书介绍的用音叉组、话筒、放大器、示波器演示,由于减少了层次,具有简便易行、便于操作、效果明白、可见度大的优点。压电片及土电吉它的制作土电吉它,是我校科技小组某同学于1990年制作的。
In our teaching, we use the piezoelectric film to make the soil electric guitar. We use the earth electric guitar with the JSB-14 large-screen oscilloscope to demonstrate the musical tone, loudness, What decision has achieved good teaching results. This demonstration, compared with the teaching reference book with the tuning fork group, microphone, amplifier, oscilloscope demonstration, due to the reduced level, with easy, easy to operate, the effect is clear, the advantages of large visibility. Piezoelectric guitar and the local production of local electric guitar, is a school science and technology team of our classmates in 1990 produced.