关于LDC0851的使用

Other Parts Discussed in Thread: LDC0851, FDC2112

目前做了测试板来测试,使用的是双层PCB的并排线圈,测试发现金属检测效果很好,但是原先选型的时候看TI官网视频,发现他也能检测水,今天测试了下发现不好用,检测不出来,仔细看了下视频的文字,发现他是修改了电路,不使用线圈去检测的液体,现在我想知道他是怎么修改那个电路的,让LDC0851也能检测到液体。谢谢了

  • LDC0851主要用来检测金属的,如果您想检测液位,建议您可以考虑FDC2112,FDC2112 datasheet请参考这个链接:http://www.ti.com.cn/product/cn/FDC2112?keyMatch=FDC2112&tisearch=Search-CN-Everything

  • Sorry that my system doesn't install the Chinese input software.

    The LDC0851 can detect the water level or flow, and I have verified by using it. 

    My first prototype is using the potential meter resistor to replace the inductors connection of the output.

    The resistance has two purposes, one is adding isolation of the two inductors; the other one adjusts the frequency. you can imagine that adjust the inductance.

    If you still need it to achieve your function, we can discuss it.

    Thank you.