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DX-2012M silicon steel material automatic measuring device

The DX-2012M silicon steel material measuring device is suitable for measuring various hot rolled, cold rolled oriented and non-oriented silicon steel materials, as well as the measured silicon steel transformer core. It can accurately measure the magnetic induction Bm, specific loss Ps, hysteresis loop and AC magnetization curve of silicon steel materials under power frequency conditions.

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DX-2012M silicon steel material automatic measuring device

Automatic measurement of the dynamic magnetic hysteresis loop of oriented and non-oriented silicon steel under the condition of 50 Hz, 60 Hz, 400 Hz and 1 kHz, accurate measurement of the static magnetic characteristic parameters such as amplitude permeability μa, loss angle δ, specific total loss Ps, remanence Br and coercivity Hc. With special testing fixture, it can directly measure the iron core and stator core of the transformer.

Windows measurement software applied simply. The product conforms to China National Standards GB/T 3655-2000, GB/T 13789-92 and international standard IEC 404-2, IEC 60404-3, IEC 60404-6. 

The controlling of computer and A/D sampling replace the traditional analog bridge, frequency meter, ammeter, voltage meter, power meter, the whole testing process is automatic completed.

General Features of AC Hysteresis Graph (DX-2012M)

  1. Testing sample varieties: hot rolling, cold rolling silicon steel materials, permalloy, amorphous and nm crystal.

  2. Testing sample shapes: ribbon and chip open samples, annular, E and U closing samples.

  3. Open circuit samples adopt EpsteinSquare to form closed magnetic circuit, can also select permeameter. Closing sample can be put under direct winding measurement, finished transformer can be also put under direct measurement.

  4. Sample( iron core), magnetizing coil (N1) and measuring coil (N2) form a no-load transformer.

  5. Non-inductive resistance connected on magnetizing coil loop to determine magnetizing current and magnetic field intensity through the measurement of pressure drop on non inductive resistance, magnetic field peak value can be locked through digital feedback, magnetic field lock precision 0.5%.

  6. Magnetic induction density obtained through digital integration of coil measuring voltage, magnetic induction peak value locked through digital feedback, magnetic induction lock precision 0.2%.

  7. Power source and sampling amplifier integrated into a casing with simple interface: one RS232 interface connected to the computer, two way voltage signal connected to A/D card.

  8. Adopt volammetry and digital integration to measure dynamic hysteresis loop, can accurately measure dynamic magnetic characteristic parameters such as µa, d, Ps, Br and Hc, etc.

  9. Automatic and continuous measurement up to 255 testing points, the testing time of every testing point is about 30 seconds, fixed-frequency, fixed Bm or fixed Hm optional in multipoint test.

Software Features of AC Hysteresis Graph (DX-2012M)

Operate under Windows 95 / 98, Windows 2000 / XP operating systems, conform to Windows software specification, visual and simple operation.

Full automatic control, intelligent identification, user intervention unnecessary in entire testing process.

Sampling waveform and instrument status under real-time monitoring, and can be stopped at any time.

The effective sectional area and length of magnetic path of samples can be calculated according to the overall dimension of samples.

File system adopts database format, can directly print or output test result to Excel form.

Powerful file management functions: data saving, deletionb and removal.

Data files contain complete sampled data, sample parameters, instrument parameters and testing schemes, adopt text format, can be conveniently typed into other software.

Display I (t), U (t) and B (t) sampling waveform and B (H) hysteresis loop, and coordinate message at every data point on the curve.

Multipoint cluster, can display B (H) magnetic hysteresis cycle cluster, B (H) magnetization curve, µa (H) permeability curve and Ps (B) damage curve, and can display coordinate message at every data point on the curve.

B (H) magnetization curve and Ps (B) damage curve measured under different conditions can be combined on one drawing for comparative analysis.

Set up upper and lower limits according to µa, Ps, Bm, Br, Hc and Hm, etc., qualify test result and determine through the color of data table.

Support various models of printers, test report accurately match printer sheet.

Print preview function, can conveniently regulate the size and edge distance of test report.

Test report can be directly printed, or generate JPG image file.

JPG image file can be sent directly through E-mail, or saved into disk.

Test reports contain complete curve diagrams, test results, test conditions and sample parameters. To facilitate adding user mark and enterprise name.

Multiple unit systems optional to satisfy the application habits of different users.

Software Screen of AC Hysteresis Graph (DX-2012M)



Technical Data of AC Hysteresis Graph (DX-2012M)

System Specifications

Under 50Hz frequency, use 25cm EpsteinSquare to measure silicon steel sample, technical indices as follows:

Parameters measuredBm (%)Hm(%)µa(%)Ps(%)d(%)
Uncertainty (k=2)11212
Repeatability (constant temperature)± 0.5± 0.5± 1± 0.5± 1

Instrument Specifications

DX-2012M Dynamic Hysteresis Graph
PC6112 A/D Card
Output Power: 500VA sine wave
Frequency Range: 45Hz~ 1000Hz
Frequency Fineness:1Hz
Frequency Error: < 0.05%
Output Voltage: 0 ~ 10V ~ 50V ~ 150V ~ 300V, four automatic ranges
Voltage Fineness: Program Control 1mV, panel < 0.1% * current range
Voltage Distortion Factor: Superior to 0.5%
Voltage Stability: Superior to 0.02%
Sampling Current: 2mA, 5mA, 10mA, 20mA, 40mA, 80mA, 200mA, 400mA,
800mA, 1.6A, 4A, 8A (Peak Value)
Sample Voltage: 20mV, 40mV, 100mV, 200mV, 400mV, 800mV, 2V, 4V, 8V, 16V,
40V, 80V, 160V, 320V, 800V, 1600V (Peak Value)
Conversion time: <= 2.5µ s (every channel)
Resolution and Linearity: 16 Bits ± 1 LSB
Voltage Range: ± 5V ~ ± 10V
Sampling Clock:6µ s ~ 10ms Hardware Clock
Internal Storage Capacity: 4k Bytes
Bus Structure: PCI busbar

Standard Package of AC Hysteresis Graph (DX-2012M)

Basic Configuration

Serial No.Product NameModelQuantity
1Test Power SupplyTPS-500M1
2Data Acquisition CardPC61121
3Measurement SoftwareSMTest1
4ComputerDell Dimension E-520n1
5PrinterHP1020 laser printer1
6EpsteinSquare25 cm1
7Square Standard SpecimenAbout 1kg1


Serial No.Options NameFunctional DescriptionRemark
1500mm×500mm SSTApplies to measure half sheet of stalloy
21000mm×1000mm SSTApplies to measure whole sheet of stalloy
3Nonstandard PermeameterApplies to measure stalloy with special sizeAs required by users

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