XIX Sympozjum Srodowiskowe PTZE - materialy.pdf
XIX Sympozjum Srodowiskowe PTZE - materialy.pdf
XIX Sympozjum Srodowiskowe PTZE - materialy.pdf
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<strong>XIX</strong> <strong>Sympozjum</strong> <strong>PTZE</strong>, Worliny 2009<br />
1<br />
G(<br />
r)<br />
=<br />
4πr<br />
(1)<br />
icr<br />
e<br />
G(<br />
r,<br />
ω)<br />
=<br />
4πr<br />
(2)<br />
∇ 2<br />
A = −µ<br />
J<br />
2<br />
∇ A�<br />
− jωσµ<br />
A�<br />
= −µ<br />
J�<br />
Distribution of static and quasi-static magnetic field in 3D<br />
free space created by circular coil is analyzed. Fig.1.<br />
Reconstructed source current densities and coil shape are<br />
shown in Fig. 2.<br />
Conclusion<br />
Fig. 1. Geometry structure<br />
Fig. 2. Reconstructed source current densities and coil shape.<br />
The proposed approach can be used in many practical activities for electrical current<br />
determination and visualisation in inaccessible region only by measured external magnetic<br />
field. Also activities in NDT, bio-magnetic applications, magnetic field experimental studies,<br />
coil optimisation or education studies could be realized by this approach.<br />
The developed approach can be used also for coil optimization. By achieved inverse<br />
reconstruction the searched optimal coil size and position can be reached for specific 3D<br />
model requirements.<br />
118<br />
(3)<br />
(4)
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