Posted on 15-05-2009 by microbuzzer
Electromagnetic buzzer internal composition:
1. Waterproof sticker 2. Spools 3. Coil 4. Magnet 5. Base 6. Pin 7. Shell 8. Core 9. Sealing glue 10. A small metal plates 11. Vibrating membrane
12. Circuit board
The working principle of passive electromagnetic buzzer:
Ac signal through the bypass line in the stent in the stent core package produce a column [...]
Tags: Buzzer, Passive magnetic, working
Posted in TECHNOLOGY
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