On 4 June 2002, VitaTech Engineering was contracted by a New
York State University to design, install, test and certify a
AC ELF magnetic shield. Between August 1st and August 3rd, VitaTech
installed a 1280 sq.ft. dual-substrate shield. Low (0.1-9.99
mG),
elevated (10-99 mG), and high (100-140 mG) AC ELF magnetic field
emissions emanated into three offices located above an electrical
switchgear & transformer vault.
Project Data
Before
Shield Site Survey 3-D Contour Plot of Site Before AC
ELF Magnetic Shield Installed
After
Shield Site Survey
3-D Contour Plot of Site After AC ELF Magnetic Shield Installed
 Slideshow
Magnetic Shield Images
Before Shield
1,280 square-foot dual-substrate shield consisted of three adjacent university
offices located directly above a switchgear/transformer room.
.
After Shield
The windows were left untreated but still maintained an acceptable rate of
decay from the switchgear room below. The installed shield complied with
and exceeded the performance guarantee of 5 mG |
; void('');){kind=link}
; void('');){kind=link}