WORLDWIDE
MANUFACTURER
andDISTRIBUTOR
Since
1941Magnetic Shield Corporation, a
division
of Perfection Mica Company, is the premier supplier of custom magnetic
shielding
alloys and custom Built
shields.
Mumetal® ZERO GAUSS CHAMBERS our most popular mumetal® scientific product
Create a low Field lab environment
MuMETAL® Zero Gauss Chambers are used worldwide
by many universities, private research companies, national laboratories and
companies required to provide evidence of military or consumer regulatory
compliance. Our Zero Gauss Chambers are preferred because they are scientifically
engineered chambers fabricated from High Permeability (M) Stress Annealed MuMETAL®
alloy and maintain a laboratory workspace or test area of consistent extremely
low magnetic field.
Standard Zero Gauss Chambers consist of 3-layers
designed to attenuate external low frequency A.C. fields 1,000 to 1,500
times. Zero Gauss Chambers
are effective because of layering. When two or more concentrically spaced
magnetic shields are used in series (one inside the other) and magnetically
isolated, the attenuation of the external field is multiplied. This multiplying
effect of successive shields provides substantially greater attenuation of
magnetic fields than a single shield of equivalent total wall thickness.
Although custom chambers are available in different diameters, lengths,
thicknesses and configurations, most applications can be solved with one of our
standard models. Each of the three magnetic shield layers consists of a cylinder
with one closed end and one open end (access opening). A close-fitting,
removable cover is provided on the access opening end. Of all geometric shapes,
a cylindrical configuration is one of the most effective for absorbing external
magnetic flux lines, thus creating an efficient magnetically shielded finite
space.
To achieve the lowest magnetic levels within the chamber and for providing
optimum long term stability and uniformity of the internal magnetic field
levels, the periodic use of a Degaussing Coil is recommended. We offer both
standard and high temperature insulated Degaussing Coils.
Standard stock sizes are available or request a quote for custom configurations
produced to spec for your application.