2·It proposes using a noninverting amplifier consisting of a high accuracy and low drift integrated operational amplifier OP. 07 as a buffer amplifier in the circuit.
提出用高精度低漂移集成运算放大器OP-07组成同相放大器，作为监测电路的缓冲放大器；
3·An instrumentation amplifier offers precise gain without feedback resistors, and, at any value of gain, it provides high input impedances at its noninverting and inverting inputs.
没有反馈电阻的仪表放大器提供精确增益，无论增益多大，放大器的同向和反向输入端提供高输入阻抗。