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1023
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Industrial Engineering
Date
Dec 6, 2023
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docx
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Uploaded by DoctorMoose3699
Ethan Fernando
251171878
Lab Section: Monday 11:30 - 1:30
Lab Performed : October 23th, 2023
Magnetics Lab #5
Demonstrator: Eric Lenhart
Purpose
The objective of this laboratory experiment is to gain proficiency in operating a magnetometer, a
specialized device designed to detect and quantify minor fluctuations in the Earth's magnetic
field. Subsequently, we will leverage the magnetometer to detect and characterize a magnetic
source located beneath it. This will be accomplished by recording the magnetic fluctuations
emanating from the hidden magnetic body using the magnetometer.
Theory and Procedure
In geophysical exploration, the magnetometer is usually used in two ways. Initially, it can be
employed as a technique to find minerals or other elements that may be magnetic. Second, it
can be used to map the geological formations in a specific region that are buried in overburden,
such as dirt, wetlands, etc. This might be any object whose magnetic field deviates noticeably
from that of its surroundings. The first method utilized in this experiment, where the magnetic
field readings indicated the the depth of the element neodymium. Ideally, a fluxgate should be
used for this lab. magnetometer to measure the Earth's magnetic field's vertical component
every four inches in line with the survey. A compass and a tape measure can be used to
determine the position of the survey line. utilized. By use of testing, the positions, data, and time
is recorded
Observations and Results:
Point #
Distance
(Inches)
BMP (mG)
AMP (mG)
Amp-Bmp(mG)
1
0
470.8333333333
33
473.3
2.5
2
4
452.1666666666
67
453.8
1.6
3
8
418.1333333333
33
420.2
2.1
…
71
272
348.8
349.2666666666
67
0.5
72
276
335.4333333333
33
337.2333333333
33
1.8
73
280
319.6666666666
67
319.4666666666
67
-0.2
Appendix A
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Appendix B
Appendix C
Half width Estimation
Max point at (25 inches, 101.1 mG)
Half : (25 inches, 50.55
mG)
X values:
X1 = 23 inches
X2 = 27 inches
X2-X1 = 4 inches
Conclusion:
I was able to determine that the magnet was positioned close to the top of the table based on
the experimental data that was gathered. This was verified by noticing that the curve in the
plotted graphs soared higher than the others at the second discrepancy. I was able to determine
that the magnet was about 4 inches below the magnetometer during the experiment by using
the half width estimation. Any kind of metallic object on the person using the magnetometer to
perform measurements is one potential source of uncertainty that could have distorted the
results. The magnetometer may have been tampered with by the objects' magnetic field,
producing unreliable readings. The uncertainties may also have been influenced by human error
in the data collection process. Engineers, forensic investigators, environmental investigators,
and others may find this experiment helpful in the real world if they need to discover anything
magnetic in the earth, such as pipes, unexploded bombs, wreckages, etc. It is used in
geophysics to find magnetic materials in the earth and to produce regional maps of
overburdened areas, like soil and wetlands.
References:
Reynolds, J. 1997. An Introduction to Applied and Environmental Geophysics. John Wiley and
Sons, London, UK. 796 pp.
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