本论文工作的电子鼻采用了金属氧化物气体传感器阵列、电压跟随电路。
The metal oxide gas sensor and voltage following circuit are adopted in this electronic nose system.
研究进一步提高测量系统灵敏度的方法，设计高输入阻抗的电压跟随电路。
The methods for increasing the sensitivity of the measurement system were studied and the voltage follower based on operational amplifier was designed.
该电路应用两级差动放大增加电路增益，利用源极跟随器作为电压缓冲器以减少信号电平损失。
It uses tow-stage differential amplifiuers to increasee the circuit gain and uses a source follower as a voltage buffer to decrease signal volt- age losing.
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