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- Magnetic Parameter specifications:
Main magnetic parameters/ Uncertainty ( k = 2 ) @1 kHz/ Repeatability
Ps/ 2.0%/ 1.0%
μa/ 3.0%/ 1.0%
Bm/ 1.0%/ 0.5%
Hm/ 1.0%/ 0.5%
δ/ 5.0%/ 1.5%
Other parameters/ Uncertainty ( k = 2 ) @1 kHz/ Repeatability
Br/ 2.0%/ 1.0%
Hc/ 3.0%/ 1.0%
μ’ / 3.0%/ 1.0%
μ′′/ 3.0%/ 1.0%
μL/ 3.0%/ 1.0%
Testing conditions：( 23±5 )°C，20 Hz ≤ F ≤ 20 kHz，demagnetized before testing.
The ratio of the outer diameter to the inner diameter of the measured specimen should not be greater than 1.4, preferably less than 1.25.
- Electrical Parameter Specifications:
Voltage Range: 10 mVpk～200 Vpk
Current Range: 0.5 mApk～20 Apk
Frequency Range: 20 Hz... 100 kHz... 200 kHz...500 kHz Optional
Frequency Uncertainty: 0.1%
Frequency Range (Hz)/Power（Peak)/Voltage and Current Uncertainty (k=2)/Power Uncertainty (k=2)
20 ≤ F ≤ 1 k/ 700 VA/0.05%*RG/0.1%*FS
1 k < F ≤ 10 k/700 VA/0.1%*RG/0.2%*FS
10 k < F ≤ 100 k/700 VA/1.0 %*RG/2.0%*FS
100 k < F ≤ 300 k/200 VA/2.5%*RG/5.0%*FS
300 k < F ≤ 500 k/100 VA/5.0%*RG/8.0%*FS
- General Specifications:
Power Supply: AC ( 220 ± 22 ) V，( 50 ± 2 ) Hz
Temperature Performance:
Operating Temperature：0°C～45°C
Storage Temperature：-20°C～70°C
Humidity Performance:
Operating Storage：< 80% @ 30°C，< 70% @ 40°C，< 40% @ 50°C
Storage Humidity：(20%～80%) R•H，non-condensing
1. Summary
TD81 Series is AC Magnetic Properties Measuring System for Soft Magnetic Materials. The product design conforms to the standard IEC 60404-6, GB/T 3658-2008. These series instruments cover frequency range from 20 Hz up to 1 MHz, depending on the selected model. It used for testing the AC magnetic properties and curves of ring core specimen.
2. Application
