TS3300 Electrical Steel Magnetostriction Measurement Device
*Reference only, actual product can vary slightly.
1. Summary
TS3300 is a device specially used to measure the magnetostriction coefficient of electrical steel sheets in the magnetization direction during the AC magnetization process. The device consists of excitation and measurement devices, single sheet tester, pressure loading device (optional), laser vibrometer, air-floating shock-absorbing platform, automatic loading and unloading device (optional), protective cover, industrial control system and special test software. This system can measure the magnetostriction coefficient λ, specific total loss Ps, specific apparent power Ss, magnetic polarization Jm, magnetic field strength Hm, amplitude magnetic permeability μa and other magnetic parameters of electrical steel under conditions such as different frequencies, magnetic field strengths, magnetic polarization strengths (or magnetic flux density), harmonics (optional), no stress or applied compressive stress (optional). , suitable for research and development and quality testing of electrical steel.
Reference standard: IEC 60404-17.
2. Features
1.Magnetic field strength measurement supports two methods: M.C and H-Coil (optional).
2.Automatic loading and unloading (optional).
3.The excitation current can be loaded with harmonics to conduct harmonic influence tests (optional).
4.Pressure can be applied along the length of the sample during testing (optional).
5.Can measure the magnetostriction coefficient and various magnetic properties of electrical steel.
6.Measurable noise performance calculation indicators LvA and LaA.
7.Equipped with windproof and protective cover to reduce the impact of environmental vibration.
8.Equipped with an air-floating shock-absorbing platform to reduce the impact of environmental vibration.
9.Equipped with professional computer software to achieve automatic testing.
3. Measured Parameters
| Magnetic Parameter |
Magnetostriction Coefficient and Curve |
| Magnetic field strength: H(t), Hm |
Peak-peak magnetostriction coefficient λp-p |
| Magnetic flux density: B(t), Bm |
Zero-peak magnetostriction coefficient λo-p |
| Magnetic polarization: J(t), Jm |
A-weighted sound level indicators LvA, LaA |
| Specific total loss: Ps |
Magnetic polarization-magnetostriction curve (J-λ curve) |
| Specific apparent power: Ss |
Magnetostriction-stress curve, etc. (pressure option required). |
| Magnetic permeability: μ |
|
Fig 2: Typical J-λ relationship curve and the definitions of λp-p and λo-p
4. Function
5. Specifications
5.1 Parameters
| Measurement frequency |
AC 45 Hz~65 Hz |
| Magnetic field strength Hm |
10 A/m~10 kA/m |
| Magnetic polarization intensity Jm |
0.5 T~1.9 T [1] |
| Apply pressure (optional) |
0~3 Mpa |
| Harmonics (optional) |
2nd to 63rd harmonic, amplitude adjustable from 0 to 20% |
| Laser vibrometer measures speed |
0.1 μm/s ~ 0.1 m/s |
Note: [1]The specific values of B and J depend on material properties
5.2 Typical Measured Parameters
| Parameter |
Uncertainty (K=2) |
Repeatability |
| Magnetostriction coefficient λp-p |
5% |
2%+0.02 μm/m |
| Magnetic field strength Hm |
0.5% |
0.2% |
| Magnetic flux density Bm |
0.5% |
0.2% |
| Magnetic polarization intensity Jm |
0.5% |
0.2% |
| Specific total loss Ps |
1.0% |
0.3% |
Test Conditions:
- H, B and J are measured at a measuring frequency of 50 Hz / 60 Hz and under no stress conditions.
- Oriented silicon steel: 1.7 T, non-oriented silicon steel: 1.5 T under no stress conditions
- The accuracy of the measurement value: There will be a deviation of 1 to 2% depending on the way and position of the sample loaded in the measurement frame.
- The repeatability of measurement values: If the same sample is placed in a designated position and kept in a designated position without moving and measured repeatedly (obtaining repeated data) without considering the temperature characteristics of the sample, it is regarded as the repeatability of the sample. And related to the performance of the sample being tested.
- Repeatability = Ι maximum value - average value Ι ÷ average value, Ι minimum value - average value Ι ÷ average value, take the bigger value of the two.
6. Specifications of Specimen
- Material: oriented silicon steel and non-oriented silicon steel
- Size: standard: 100 mm (± 0.1 mm) × 500 mm (± 0.5 mm), (W*L)
- Thickness: nominal plate thickness 0.1 mm ~ 0.7 mm
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