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fdc1004测量距离的问题

Other Parts Discussed in Thread: FDC1004

各位专家:我最经在使用FDC1004用作短距离报警,就是距离接近是,检测到电容的变化,认为有物体,根据规格书和你们的评估板,测试中发现Sensing Solutions EVM GUI上的波形不平稳,不知道电容的检测极板的大小是否对检测距离有影响,影响的趋势是怎么样的,外部的干扰如测量的影响大吗?对于我的这种设计是否可行?有没有更合适的方案可以提供? 谢谢!