Environmental Magnetic Influences

Environmental
Magnetic Influences
Critical Distance Correlated to Change Valve (cm)
Strata NSC Valve
Codman Hakim Programmable Valve
Cordless Drill Magnetic Screw Holder (Ryobi HP1442M)
Computer Speaker (ViewSonic VP201)
Portable DVD Player at Speaker (Audiovox D1708)
Refrigerator Door Seal (SZ 632)
Digital Voice Recorder (Panasonic RR-US360)
Deskphone (Lucent 6408 D+, at Earpiece)
300.0
Infant Skin
Thickness
(Est. 0.2 cm)
Hand-held Screwdriver w/Magnetic Tip (Pratt-Read)
Adult Skin
Thickness
(Est. 0.5 cm)
Cell Phone (Samsung SGH-X426)
Cell Phone (Motorola V60)
Large Stereo Headphones (Koss UR-30)
Video Camera at Speaker (Cannon MDV12x/24x)
IPod Earbuds
Infant Skin
Thickness
(Est. 0.2 cm)
LCD TV at speaker (Sharp 13”)
Hair Trimmer (Norelco T600)
Adult Skin
Thickness
(Est. 0.5 cm)
Electric Toothbrush (Braun Oral-B D17565)
Electric Toothbrush (Sonicare)
Walk-Thru Metal Detector (SB Airport)
Computer Speakers (Harmon Kardon DP/N 06941V)
250.0
Flexible Refrigerator Magnet
Calculator (TI-35X)
Computer Monitor (NEC EE950+)
Computer (Dell Precision 330)
Lightswitch
Electric Hair Curler
Electric Stove (Kenmore)
Microwave (Panasonic Genium)
Hair Dryer (Vidal Sasoon)
200.0
Hand Held Wand Metal Detector (SB Airport)
B-field Strength (G)
0.0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
1.9
2.0
2.1
2.2
2.3
2.4
Magnetic Strength Characterization (Gauss)
Distance (cm)
150.0
0.0
1.0
2.5
5.0
Cordless Drill Magnetic Screw Holder (Ryobi HP1442M)
1024.0
163.0
43.7
16.0
Hand-held Screwdriver w/Magnetic Tip (Pratt-Read)
558.2
27.6
7.4
1.9
Cellphone (Motorola V60)
521.6
17.9
3.2
1.5
Portable DVD Player at Speaker (Audiovox D1708)
439.0
49.0
8.5
2.5
Video Camera at Speaker (Cannon MDV12x/24x)
415.0
22.7
7.0
6.1
Digital Voice Recorder (Panasonic RR-US360)
380.0
30.0
5.6
2.5
0.0
350.0
7.3
0.0
Refrigerator Door Seal (SZ 632)
340.1
35.1
4.2
0.2
Flexible Refrigerator Magnet
305.0
0.1
0.0
0.0
iPod Earbuds
100.0
50.0
0.0
0.2
0.5
1.0
2.0
3.0
Distance from Device (cm)
4.0
5.0
Cell Phone (Samsung SGH-X426)
303.7
19.1
2.4
0.6
Coputer Speaker (ViewSonic VP201)
178.2
57.1
16.8
4.6
Large Stereo Headphones (Koss UR-30)
113.5
29.1
9.3
1.1
Deskphone (Lucent 6408 D+)
74.7
1.0
1.9
0.7
Electric Toothbrush (Braun Oral-B D17565)
59.5
11.5
2.5
5.0
Hair Dryer (Vidal Sasoon)
45.9
16.2
6.8
2.0
LCD TV at speaker (Sharp 13”)
38.4
23.7
10.6
4.7
Electric Toothbrush (Sonicare)
30.9
4.6
1.0
0.2
Hair Trimmer (Norelco T600)
17.4
4.9
1,2
0.4
Computer Speakers (Harmon Kardon DP/N 06941V)
9.6
1.5
0.0
0.0
Lightswitch
2.5
1.3
0.0
0.0
Microwave (Panasonic Genium)
1.7
1.7
1.7
1.7
Electric Stove (Kenmore)
1.7
1.7
1.7
1.7
Electric Hair Curler
1.7
1.7
1.7
1.7
Walk-Thru Metal Detector (SB Airport)
1.2
0.0
0.0
0.0
Computer Monitor (NEC FE950+)
0.9
0.5
0.6
0.7
Hand Held Wand Metal Detector (SB Airport)
0.8
0.0
0.0
0.0
Computer (Dell Precision 330)
0.8
0.8
0.7
0.6
Calculator (TI-35X)
0.5
0.3
0.3
0.3
2.5