An Embedded System for Capacitive Sensor Interface
碩士 === 國立交通大學 === 電子工程系所 === 95 === The objective goal of this thesis is to design an embedded system for capacitive sensor interface which features with an auto range frequency detection. The frequency detection range is from 0.01Hz to 50MHz. The traditional frequency counter which needs to adjust...
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2006
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| Online Access: | http://ndltd.ncl.edu.tw/handle/80033809103423250172 |
| Summary: | 碩士 === 國立交通大學 === 電子工程系所 === 95 === The objective goal of this thesis is to design an embedded system for capacitive sensor interface which features with an auto range frequency detection. The frequency detection range is from 0.01Hz to 50MHz. The traditional frequency counter which needs to adjust the gate time by hand is improved with auto range frequency detection to eliminate the error less than 1%. The frequency detection circuit can be adapt to the measurement of capacitive sensor by adding a sensor interface circuit.
This system use Altera DE2 development board to be the platform and implement the embedded system for capacitive sensor interface by SoPC Builder which can achieve small area and low cost.
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