China Spot Market – Rare Earth Magnet Materials Daily Quotation, Just for Reference!
▌Market Snapshot
Pr-Nd Alloy
- Current Range: 540,000 – 543,000
- Price Trend: Steady with narrow fluctuations
Dy-Fe Alloy
- Current Range: 1,600,000 – 1,610,000
- Price Trend: Firm demand supports upward momentum
Magnetic measurement
Magnetic strength is measured in tesla(T) or gauss(Gs), with 1T=10,000Gs. Earth’s field measures ~0.00005T(0.5Gs), while MRI scanners generate 1.5-3T. Tesla meters measure field strength using the Hall Effect: when current flows through semiconductor material, magnetic fields deflect electrons to create measurable voltage. Different applications require specific strengths:
- Audio speakers: 0.1-0.3T
- Maglev trains: 0.5-1T
- NMR machines: 1.5-7T
Modern tesla meters can measure fields from 0.01μT to 30T, with accuracy up to ±0.25%. The strongest continuous man-made field reaches 45T at US National High Magnetic Field Laboratory.
Post time: Mar-27-2025
