GMR sensors and inductors used to detect metal / magnetic fields

[[email protected]]

Hello everyone, I have a question about metal detection and magnetic
fields and such.

I know that inductors and GMR sensors can both be used to detect
magnetic fields and/or metal objects, but I was wondering about the
difference in usage between them. I think I have a pretty good
understanding, but I was hoping someone could explain the difference
between the two to me..

And inductor is affected by a magnetic field or when a conducting
object enters into its own field, am I correct? How is this different
from GMR sensor detection?

Thanks for any help!

--Steven

 

[Charles Schuler]

Hello everyone, I have a question about metal detection and magnetic
fields and such.

I know that inductors and GMR sensors can both be used to detect
magnetic fields and/or metal objects, but I was wondering about the
difference in usage between them. I think I have a pretty good
understanding, but I was hoping someone could explain the difference
between the two to me..

And inductor is affected by a magnetic field or when a conducting
object enters into its own field, am I correct? How is this different
from GMR sensor detection?

Have you checked sources such as:
http://www.sensorsmag.com/sensors/article/articleDetail.jsp?id=325285