所以基于單片機的酒精濃度監(jiān)測儀的研究具有一定的價值。 關鍵詞: 酒精濃度傳感器 單片機 數(shù)模轉換 硬件設計 數(shù)碼管顯示 Abstract paperstudies has been designed publicinspection overrunalarm function alcoholconcentration intelligent tester. Its design scheme based 89C51,MQ3 alcohol concentration sensor.