A portable gas detector circuit diagram
Source: InternetPublisher:他们逼我做卧底 Keywords: Portable gas sensor gas detector Updated: 2020/04/23
As shown in the figure below, it is the circuit diagram of a portable gas detector. This portable gas detector circuit mainly uses an electrochemical sensor, and the dual-channel micropower amplifier ADA4505-2 is used in a potentiostatic configuration (U2-A) and a transconductance configuration (U2-B). This amplifier has very low power consumption and input bias current, making it a good choice for both potentiostatic and transconductance sections. Each amplifier consumes only 10 μA, resulting in very long battery life.
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