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TD8330 Testing System For Permanent Magnet Materials

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Introduction

  • TD8330 is mainly used to measure the magnetic properties of various types of permanent magnet materials, and consists of excitation and measurement host, electromagnet, magnetic field measurement sensor, computer and PC software, etc.

  • The TD8330 meets international standards IEC 60404-5 and GB/T 3217-2013.


Application

  • Measuring materials : Alnico, Ferrite, NdFeB, SmCo, etc.

  • Sample shape: Ring, cylinder, circle, square, tile shape (with fixture).

  • Measurable parameters : Js, Br, Hcb, Hcj, ( BH )max.

  • Magnetic measurement curve: magnetization curve, demagnetization curve, B-H/J-H hysteresis loop, temperature characteristic curve (high temperature test), etc


Features

  • Equipped with electromagnet with Φ250 or Φ280 options,the maximum magnetic field of up to 3.2T.

  • Optional temperature cap enables the measured sample to reach 500 ° C for high temperature test.

  • Equipped with PC software to complete the test process automatically.

  • The zero drift of the fluxmeter integrator and the nonlinear error of the Hall probe have little influence. The residual turn area can be compensated when measuring with J coil.

Specification


Reproducibility of the measured magnetic parameters

Measured parameters

Typical values

Guaranteed values

(Alnico)

Guaranteed values

(Ferrite,FeCrCo, NdFeB)

Br

0.3%

1.0%

2.0%

Hcb

0.3%

1.0%

2.0%

Hcj

0.3%

1.0%

2.0%

(BH)max

0.3%

1.5%

3.0%

  • Test temperature: 23 °C ± 5 °C.

  • The sample size shall strictly comply with the relevant requirements of GB/T 3217-2013.

  • The guaranteed value is the required value in the standards.


Reproducibility of the measured magnetic parameters

Magnetizing current

Range

0~± 80 A

Peak power

25 kVA

Protection

Overvoltage, overcurrent, overload,   overheat protection

Teslameter

Range

04000   mT

Accuracy(k = 2)

≤   2500 mT,0.5%

Features

With Hall nonlinear correction

Fluxmeter

B fluxmeter range

020   mWb(Magnetic induction measurement)

H fluxmeter range

040 mWb(magnetic   field intensity measurement)

Resolution

0.1 μWb

Zero-drift

Better than 1 μWb / min,Auto-zero

Remarks: Calibration   only covers up to 2500 mT


PC Software

  • Support Windows system, easy to operate.

  • The process of magnetization, measurement, data acquisition and curve drawing can be automatically completed by program control to improve the detection efficiency.

  • The output of bipolar magnetization power supply is controlled by program to ensure that the magnetization field of electromagnet is continuously adjustable in positive and negative direction, which is convenient for magnetization and demagnetization.

20-2

Main interface

20-3

B-H / J-H Hysteresis loop

20-4

Demagnetization curve


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