我的感应范围只有在2-4MM左右,实在太小了啊。。。。想问问大家的感应范围是多大,还有就是如何增加这个距离
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请参考下帖检查线圈电感,调整谐振电容,滤波电容以及阻抗范围设置:http://www.deyisupport.com/question_answer/analog/data_converters/f/58/t/69133.aspx
使用14mm直径的线圈来测量不锈钢目标,在0.8毫米的距离下,测量的标准误差大约是0.25微米。
看了一些资料也没提具体最大感应距离。