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关于压电薄膜前置信号处理的问题

Other Parts Discussed in Thread: OPA333

你好,我想请教一下:如果需要用压电薄膜测量脉搏之类的微弱振动信号,电荷放大器选用OPA333是不是比较合适?看见有帖子说需要在压电传感器这里的信号输出端加一级跟随,再放大,但我表示质疑。对于电荷量的信号,到底能不能加电压跟随?