Correct reading of static fields in 3 axes

Hilfe und Informationen zur Firmware der SPECTRAN NF- Serie
Firmware related help and information for the SPECTRAN NF- series

Correct reading of static fields in 3 axes

Postby jlezana » Tuesday 31. March 2015, 20:47

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
Attachments
Panguipulli.jpg
Los Lagos.jpg
Valdivia.jpg
jlezana
 
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Joined: Tuesday 26. March 2013, 20:24

Re: Correct reading of static fields in 3 axes

Postby Moderator » Tuesday 31. March 2015, 21:00

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.
Moderator
 
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Location: Aaronia AG

Re: Correct reading of static fields in 3 axes

Postby jlezana » Thursday 2. April 2015, 13:54

Moderator wrote: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
jlezana
 
Posts: 4
Joined: Tuesday 26. March 2013, 20:24

Re: Correct reading of static fields in 3 axes

Postby Moderator » Thursday 2. April 2015, 15:10

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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Re: Correct reading of static fields in 3 axes

Postby jlezana » Tuesday 7. April 2015, 13:37

Moderator wrote: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
jlezana
 
Posts: 4
Joined: Tuesday 26. March 2013, 20:24

Re: Correct reading of static fields in 3 axes

Postby Moderator » Tuesday 7. April 2015, 14:37

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