Researchers who don't want to use an integrator can use a rotating coil gaussmeter
. This device consists of a coil on one end of a shaft inserted into a tube one to four ft long.
MG-4F portable Hall effect gaussmeter
is designed as self-contained instrument for DC and AC magnetic field measurements from 10 Hz to 20 kHz.
Hall effect sensors cover a frequency range from DC to tens of kilohertz and commonly are used in low-frequency gaussmeters
You can test for EMFs yourself with "gaussmeters
" available from several companies, including Less Gauss, a Rhinebeck, New York-based company that markets safer computer products.
1 Omega Dr., Box 4047 Stamford, CT 06907 Toll Free: (800)826-6342 Fax: (203)359-7700 URL:www.omega.com email:email@example.com Circle 2008 on reader service card See our Ad on page 1 Gaussmeters
Lake Shore Cryotronics, Inc.
, magnetometers, field monitors, calibration equipment, precision reference standards are included in brochure.
EMU series Residumeter hand-held gaussmeters
are economical instruments for measuring DC fields in ferromagnetic materials.