RT
没有具体的公式,但是可以通过改变电感物体的形状使得电感和位移成线性比例变化,建议您参考两篇有关位移测量的blog:
https://e2e.ti.com/blogs_/b/analogwire/archive/2014/07/01/inductive-sensing-linear-position-sensing-part-1
https://e2e.ti.com/blogs_/b/analogwire/archive/2014/07/08/inductive-sensing-linear-position-sensing-part-2