EM Field & Health

stewsystemElectronics - Devices

Oct 18, 2013 (3 years and 11 months ago)

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EM Field & Health
Design of Exposure System
to support
In Vitro experimental studies
Ir. Chrisoula Sismanidou
Supervised by
Prof. dr. ir. A.P.M. Zwamborn & Dr. ing. G.C. van Rhoon
Group: Electromagentics (EM)
Outline
￿
Introduction
￿
ELF-MF Immunent Exposure System
￿
Motivation-Basic Requirements
PAGE 19-11-2010
￿
Numerical Characterization
￿
Experimental Characterization
￿
Future work
In-Vitro ELF-MF Exposure Systems
Basic reference systems
PAGE 29-11-2010
Motivation  Basic Requirements
￿
Causal relations between non-thermal, ELF, weak MF
exposure and biological effects.
￿
50Hz linearly polarized MF
￿
Exposure level range 5uT
-
1mT
￿
Exposure level range 5uT
-
1mT
￿
1% Uniformity Volume for experiments in triplets
￿
Fit inside a standard cell culture incubator
￿
Temperature regulation at 37±0.5
o
C
PAGE 39-11-2010
ELF-MF Immunent Exposure System
Uniformity regions at yz plane
A. Single Solenoid no d.w.
z axis in mm
-100
0
100
200
300
400
B. Single Solenoid with d.w.
z axis in mm
-100
0
100
200
300
400
Immunent System
￿
larger useful area for 1% uniformity
U(y,z) = | B(y,z)-B(0,0) | / B(0,0)x 100 [%]
120(d) x 82(h)mm
100(d) x 70(h)mm
PAGE 69-11-2010
y axis in mm
-300
-200
-100
0
100
200
300
-400
-300
-200
y axis in mm
-300
-200
-100
0
100
200
300
-400
-300
-200
C. Double Solenoid no d.w.
y axis in mm
z axis in mm
-400
-300
-200
-100
0
100
200
300
400
-400
-300
-200
-100
0
100
200
300
400
D. Double Solenoid with d.w.
y axis in mm
z axis in mm


-400
-300
-200
-100
0
100
200
300
400
-400
-300
-200
-100
0
100
200
300
400
10
20
30
40
50
60
70
80
90
￿
larger useful area for 1% uniformity
￿ 10% uniformity area 170(d)x220(h)mm
Comparable with the other coil
configurations
80(d) x 60(h)mm
140(d) x 82(h)mm
Experimental Characterization
with a 50Hz sinusoidal signal
PAGE 79-11-2010
Future Work
￿
Experimental Characterization
￿
Cooling method
￿
Comparison with the basic reference systems
PAGE 89-11-2010