Magnetic Flux Density Converter

Understanding Magnetic Flux Density Measurement

Magnetic flux density, also known as magnetic induction, measures the strength of a magnetic field at a specific point. It represents the amount of magnetic flux passing through a unit area perpendicular to the field direction. This fundamental electromagnetic quantity is essential for understanding magnetic field interactions and electromagnetic phenomena.

Essential Conversion Factors

• 1 Tesla = 10,000 Gauss (exact conversion)
• 1 Tesla = 1 Weber per square meter (Wb/m²)
• 1 Gauss = 0.0001 Tesla = 100 microtesla
• 1 Millitesla = 10 Gauss = 1,000 microtesla
• 1 Microtesla = 0.01 Gauss = 10 milligauss

Relationship to Magnetic Field Strength

• Magnetic flux density (B) = μ × Magnetic field strength (H)
• In vacuum: B = μ₀ × H, where μ₀ = 4π × 10⁻⁷ H/m
• In materials: B = μ × H, where μ is permeability
• Critical for electromagnetic design and magnetic material analysis

Professional Applications

• Medical Imaging: MRI scanners, magnetic resonance specifications
• Scientific Research: Particle accelerators, laboratory measurements
• EMC Testing: Electromagnetic compatibility, interference analysis
• Magnetic Materials: Permanent magnet characterization, transformer design
• Geophysics: Earth's magnetic field measurements, mineral exploration
• Electronics Manufacturing: Magnetic sensor calibration, quality control

Common Magnetic Flux Density Values

• Earth's magnetic field: 25-65 microtesla
• Typical permanent magnet: 0.1-1.4 Tesla
• MRI scanners: 1.5-3 Tesla (clinical), up to 9.4 Tesla (research)
• Electromagnets: 0.5-2 Tesla
• Superconducting magnets: 10-20+ Tesla
• Refrigerator magnet: ~5 millitesla

Magnetic Field Safety and Standards

• WHO guidelines: 200 mT static field exposure limit
• Pacemaker safety: typically <0.5 mT
• Occupational exposure limits vary by duration and field type
• Critical for medical device compatibility and workplace safety