Mitchell Instrument Co. - best price for Test and Measurement, Safety, NFPA 70E Arc Flash

Skip to Main Content »

Search Site
For the Very Best Price, Call us at: (888) 270 2690

Gauss Meters

Measuring magnetic fields with a gauss meter allow the user to:

Sort or perform incoming inspection on permanent magnets, particularly multipole magnets.
• Test audio speaker magnet assemblies, electric motor armatures and stators, transformer lamination stacks, cut toroidal cores, coils, and solenoids.
• Determine the location of stray fields around medical diagnostic equipment.
• Determine sources of electromagnetic interference.
• Locate flaws in welded joints.
• Inspection of ferrous materials.
• Inspection of magnetic recording heads.

Electrical Transmission Lines and EMF

Electromagnetic fields are created around power transmission lines by the passage of high levels of current through the transmission line wires themselves. A power-line generated electromagnetic field has polarity and shape, roughly spherical around a power line. The problem of the electromagnetic field having polarity and shape means that some early or low-cost EMF measuring devices will give widely varying field strength measurements depending simply on the physical orientation of the device when the measurement is made - that is, what direction you point the instrument affects its reading. But just pointing the meter or probe directly at the power lines will give an effective reading. It may not at all, based on field polarity. More advanced gauss meters will offer different technologies and probes to address the field polarity.

EMFs are invisible lines of force created whenever electricity is generated or used. EMFs are produced by power lines, electric wiring, and electric equipment and appliances. The frequency of EMFs is measured in hertz (Hz, or cycles per second). People are exposed to both electric and magnetic fields, but scientists are most concerned about magnetic fields. This category of products deals only with magnetic fields that have frequencies near 60 Hz the frequency of electric power in North America. Workers may be exposed to high magnetic fields if they work near electrical systems that use large amounts of electric power (for example, large electric motors, generators, or the power supply or electric cables of a building). High magnetic fields are also found near power saws, drills, copy machines, electric pencil sharpeners, and other small electric appliances. The strength of the magnetic field depends on equipment design and current flow not on equipment size, complexity, or voltage. Though some electric equipment produces EMFs of other frequencies, most health research has considered only frequencies near 60 Hz.

Items 1 to 9 of 13 total

per page
Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction

Items 1 to 9 of 13 total

per page
Page:
  1. 1
  2. 2

Grid  List 

Set Descending Direction
Thank You For Shopping with Mitchell Instrument Company Inc.® - 1570 Cherokee St. San Marcos CA 92078 - Phone: (760) 744 2690 - Fax (760) 744 0083