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- SCM
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[WORD]
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- 247kb
- Update:
- 2012-11-26
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Description: Use C8051F020 system board, design a speed measurement instruments. The use of reflective photoelectric sensors designed to measure the system, the speed measurement. When the sensor aligned fan, the blades on white reflective, black non-reflective, the use of this principle, the speed measurement. And the speed value displayed on the LCD, to ensure that the error in less than 1Hz.
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转速测量设计报告.doc
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