针对采用的生物传感器内阻高、信号弱、双极性等特点，用预处理电路对模拟信号进行了变换。
A preprocessing circuit is designed for analog signal transformation because of large inner impedance of biosensor and bipolar signal.
适用于信号偶合等极性需反转或变换的电路。
Used in circuits what polarity is reversed, such as signal coupling, etc.
高度，极性可反转积变换。适用于信号耦合等极性需反转变换的电路。
Be 7mm in height, the polarity can be reversed. Used in circuits what polarity is reversed, such as signal coupling, etc.
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