help for fluxgate magnetometer for cave detections

[lamaison33]

hello all,

I have a Aquascan fluxgate mag (DX 200), I would like to know if with arch geo mini is able to detect caves and voids, thanks for the response.

[lamaison33]

no information?

[Carl-NC]

Very possibly, depending on the mineralization of the surrounding soil, and the sensitivity if the DX200. They don't spec sensitivity, and my guess is they use the FGM-3 which has modest sens. Bottom line is, you would have to do some tests to find out.

[lamaison33]

thanks Carl, I read your pdf "Pratical guidelines for building a magnetometer", what magnetometer tips, for this work?
Regards

[Carl-NC]

The Arc-geo Logger works best when recording absolute responses, such as a non-SAT all-metal mode of a metal detector. The DX200 is a gradiometer type mag so it detects delta signals, which may only give an outline of a cave, especially if the cave is large. The best advice I can offer is to thoroughly test on known landscape to learn how to read the results. Also, you may find that a certain orientation of the mag produces better results.

[lamaison33]

oh Carl, I understand I will do the tests and will post the results.
thank you very much!

[Willy Bayot]

thanks Carl, I read your pdf "Pratical guidelines for building a magnetometer", what magnetometer tips, for this work?
Regards

Sorry to contradict but this is a document written by myself
This was a report on the state of the arts about Magnetometry I wrote at the very beginning of our PPM project.
This project has ended-up to an operational PPM we now sell over the Web.
This is our web site: http://users.skynet.be/fa352591/index.htm

Willy Bayot

[lamaison33]

Sorry, Mr.Bayot,you're absolutely right,
Regards