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Correct reading of static fields in 3 axes


jlezana
(@jlezana)
New Member
Joined: 9 years ago
Posts: 4
Topic starter  

Good afternoon, I have a question regarding the measurement of the Earth's static field:
Les attached 3 images from different localities within my country, where do four measures aimed at the 4 cardinal points North-South-East-West, the instrument configuration is in the pictures, check the reading on 3 axes, and I seemed strange to mark different in different orientations, the instrument is coming from Aaronia, with the installation of this sensor.

1- What is the right size? (Position south of the X axis?)
2- Why not show the same value in all 4 orientations?

regards
Jorge Lezana
Chile


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Moderator
(@moderator)
Member Admin
Joined: 12 years ago
Posts: 1048
 

Did you calibrate the sensor before measurement? See topics:
viewtopic.php?f=31&t=1074&start=0&hilit=static
viewtopic.php?f=31&t=909&p=2042&hilit=static#p2042

Also dont forget that you can get quite different readings, depending on location, since the earth magnetic field is not stable and can also get influenced by iron etc.

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jlezana
(@jlezana)
New Member
Joined: 9 years ago
Posts: 4
Topic starter  

Did you calibrate the sensor before measurement? See topics:
viewtopic.php?f=31&t=1074&start=0&hilit=static
viewtopic.php?f=31&t=909&p=2042&hilit=static#p2042

Also dont forget that you can get quite different readings, depending on location, since the earth magnetic field is not stable and can also get influenced by iron etc.

The instrument comes from the factory and was sent from chile, for the installation of static sensor, but was not told that they had to stand at 0 the sensor .. if I am buying this new sensor, and sending the team from afar, because is not zeroed ?? I do not understand.
Now what do I do ?? Back to paying all shipping costs to have the instrument with a correct reading ??

If I put the instrument to measure in one axis and encounter far greater intensity, is a correct measure, or simply have no choice but to resend the instrument manufactures ???
Very disappointed.
Excuse my English, translator use.
J. L


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Moderator
(@moderator)
Member Admin
Joined: 12 years ago
Posts: 1048
 

Sending back the unit for calibration makes no sense because the sensor will for sure readjust on the transpoprt again.
Just as needed on any other static magnetic field test unit you MUST have a Zero Gauss chamber at hand to zero the unit before each measurement if you want real static magnetic field values.

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jlezana
(@jlezana)
New Member
Joined: 9 years ago
Posts: 4
Topic starter  

Sending back the unit for calibration makes no sense because the sensor will for sure readjust on the transpoprt again.
Just as needed on any other static magnetic field test unit you MUST have a Zero Gauss chamber at hand to zero the unit before each measurement if you want real static magnetic field values.

One last Consultation, despite not being calibrated the sensor, it is possible to obtain an approximate value to real?
The sensor that gives me greater reading is the X axis pointing south.
Greetings To You.
J. L


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Moderator
(@moderator)
Member Admin
Joined: 12 years ago
Posts: 1048
 

Yes use an offset (which you get from known values or from a measurement of a calibrated unit).

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