- 期刊
經由科學營活動做出自己的電吉他
Build Your Own Electric Guitar from Science Camp
摘要
電吉他發聲的機制並不是像木吉他是由琴弦與音箱共鳴，而是由磁化後的琴弦振動，並經由拾音器線圈所產生微弱訊號，再由放大器增強訊號推動喇叭發聲。本文說明由科學營隊活動中學習電吉他。為了完成電吉他，同學們除了要動手琴身木工與放大器電工之外，還要進行電磁感應與波動等數個物理實驗。此活動除了準備適當的工具設備以外，還必須針對學生所能理解的方式編寫教學內容與教學步驟。彈奏自製的電吉他很可能發生音調不準確問題，學生除了可以透過耳朵聆聽音調高低之外，本文建議可利用電腦音效軟體進一步分析訊號頻率與波形，以方便學生將電吉他琴弦作正確調音。透過製作電吉他活動，不僅能激發學生的學習意願，更能協助學生統整其物理知識與相關技能，進而體認並追求物理知識的實用性。
並列摘要
An acoustic guitar contains a sound box that increases the loudness of the sounds the strings make. An electric guitar uses a pickup coil to convert the vibration of steel strings into electrical signals. The signal generated by the pickup coil is too weak to drive a loudspeaker, so it is amplified before sending it to a loudspeaker. Electric guitar building summer camp activities, the National Science Education Center in 2012. Each student will complete a simple Electric guitar-building project in two days of summer science camp activities. These activities include electric-magnetic and wave physical experiments, as well as wood working and electrician implementation.Electric guitar-building summer camp, in addition to prepare the appropriate tools and equipment, must also be prepared for primary school students can understand the teaching content and teaching steps. Solve guitar-tuning problems. Tuning the guitar by ear is a difficult thing to do for most people. The article also mentioned that the signal frequency and waveform analysis by computer sound software correct tuning for electric guitar. Guiding you step by step through electric guitar building project, you can learn useful knowledge and skills.