Products
201SA  Hysteresisgraph
201SA Hysteresisgraph is fully automatic, computer controlled equipment to measure on basic magnetization curve and magnetic hysteresis loop at a dynamic state for soft magnetic material at frequency of 20Hz to 500 kHz, automatic measurement of magnetic hysteresis loop of the soft magnetic materials such as silicon steel, precision alloy, non-crystal and ferrite, accurate measurement on the dynamic magnetic characteristic parameters such as amplitude permeability μa, loss angle δ, loss iron Pc, remanence Br and coercivity Hc.
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.




 

Applied Standards

  • GB/T 3658-2008 Methods of AC magnetic properties of magnetically soft materials
  • GB/T 19346-2003 Methods of AC magnetic properties of amorphous and nanocrystalline soft magnetic alloys
  • SJ 20966-2006  Measuring methods for soft ferrite materials
  • IEC 60404-6  Methods of AC magnetic properties of magnetically soft materials



Measured Parameters

  • Amplitude permeability(µa)
  • Loss angle (δ)
  • Total loss ratio (Ps)
  • Remanence (Br)
  • Coercivity (Hc)
  • B(H) hysteresis loop
  • B(H) hysteresis loop cluster
  • B(H) magnetization curve
  • µa(H) permeability curve
  • Ps(B) loss curve
  • Calculate μ′, μ″, μL, μR, Q and Ai under certain conditions

Main Features

1.Testing samples: soft magnetic ferrite, permalloy, amorphous ,nanocrystalline and iron powder core.
2.Test sample shapes: ring, E and U shapes.
3.Test samples with closed magnetic circuit can be directly winded and measured on samples. Magnetizing coil (N1) and measuring coil (N2) form a no-load transformer.
4.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%.
5.Magnetic induction obtained through digital integration of coil measuring voltage, magnetic induction peak value locked through digital feedback, magnetic induction lock precision 0.5%.
6.Power source and sampling amplifier integrated into a casing with simple interface: one RS232 interface connected to the computer, two way voltage alarm connected to high speed A/D card.  
7.Measuring dynamic hysteresis loop through volammetry and digital integration can accurately measure dynamic magnetic characteristic parameters such as μa, δ, Pc, Br and Hc, and calculate μ, μ, μL, μR, Q and AL, etc.
8.Automatic and continuous measurement up to 255 testing points, the testing time of every testing point is about 12 seconds, fixed-frequency or fixed Bm optional in multipoint test.
9.Powerful function of the software, the technical request to the testing staff is very low.




Software Functions

1. Operate under Windows7, complied to Windows software restricts, easy to operate.
2. Lock Bm (magnetic induction) and lock Hm (magnetic field) can be selected, fit for various measurement requirements.
3.  Automatic control, intelligent judgment, without user intervention all through the progress.
4.  Sampling waveform and instrument status under real-time monitoring, and can be stopped at any time.
5.  The effective sectional area and length of magnetic path of samples can be calculated according to the overall dimension of samples.
6.  System adopts database format, can directly print or output test result to Excel form.
7.  Various file management functions: data saving and deleting, remove all the data etc.        
8. Data files contain complete sampled data, sample parameters, instrument parameters and testing schemes, adopt text format, can be conveniently typed into other software.
9.  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
10. Multipoint cluster, can display B(H) magnetic hysteresis loop cluster, B(H) magnetization curve, μa(H) permeability curve and Ps(B) loss curve, and it can display coordinate message at every data point on the curve.
11. B(H) magnetization curve and Ps(B) damage curve measured under different conditions can be combined on one drawing for comparative analysis.
12. 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.
13. Print preview function, can conveniently regulate the size and edge distance of test report.
14. 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.
15. Test reports contain complete curve diagrams, test results, test conditions and sample parameters. Both Chinese and English format can be adopted to facilitate adding user mark and enterprise name.
16. Optional multiple unit systems satisfies the application habits of different users.




Software Interface




Test Reports


 




Technical Parameters

1. According to National Standard GB/T 3658-2008, under the frequency of 20Hz~20kHz, technical data of measuring of permalloy ring sample are as follows: 

Parameters Ps(%) μa(%) δ(%) Bm(%) Hm(%)
Uncertainty(k=2) 3 3 - 1 1
Repeatability ± 1.5 ± 1.5 ± 1.5 ± 0.5 ± 0.5
Remarks 1. Samples should be thin ring, OD/ND<1.4.
2. Measure by lock Bm and Bm=100mT~200mT; demagnetizing before testing and frequency of demagnetizing should be less than or equal to test frequency.
3. Uncertainty is “-”, means there is no requirement in the National Standard.

 

2. According to National Standard GB/T 19346-2003, under the frequency of 20kHz~100kHz, technical data of measuring of amorphous ring sample are as follows:

Parameters Ps(%) Ss(%) μa(%) δ(%) Bm(%) Hm(%)
Uncertainty(k=2) 5 5 3 - 1 2
Repeatability ± 3 ± 2.5 ± 2 ± 2 ± 0.5 ± 1
Remarks 1. Samples should be thin ring, OD/ND<1.5.
2. Measure by lock Bm and Bm=100mT~200mT; demagnetizing before testing and frequency of demagnetizing should be less than or equal to test frequency.
3. Uncertainty is “-”, means there is no requirement in the National Standard.

 

3. According to Military Standard SJ 20966-2006, under the frequency of 20kHz~100kHz, technical data of measuring of ferrite ring sample are as follows:

Parameters Ps(%) μa(%) δ(%) Bm(%) Br(%) Hc(%)
Uncertainty(k=2) 5 3 - 1 - -
Repeatability ± 3 ± 2 ± 2 ± 0.5 ± 1 ± 1
Remarks 1. Samples should be thin ring, OD/ND≈1.67.
2. Measure by lock Bm and Bm=100mT~200mT; demagnetizing before testing and frequency of demagnetizing should be less than or equal to test frequency.
3. Uncertainty is “-”, means there is no requirement in the National Standard.



Hardware Parameters

Technical Data 201SA /200K 201SA /500K 201SA /K50 201SA K100
Max. Output Power 300 VA sine wave
(below 100kHz)
200 VA sine wave
(below 300kHz)
500VA sine wave 1000 VA sine
wave(5kHz~40kHz)
650VA sine
wave(40kHz~100kHz)
Frequency Range 20Hz ~ 200 kHz 1kHz ~500kHz 1kHz ~200kHz 5 kHz ~ 100 kHz
Frequency Fineness < 0.1%×Current Value
Frequency Error < 0.05%
Output Voltage 0~ 50V(Peak Value) 0~ 50V(Peak Value) 0 ~ 50V~ 100V~150V~300V 0 ~ 50V~ 100V~150V~300V
Voltage Fineness Program Control 1 mV, panel < 10 mV Program Control 1 mV, panel < 10 mV Program Control 1 mV, panel < 0.1%xcurrent range Program Control 1 mV, panel < 0.1%xcurrent range
Voltage Distortion Factor Superior to 1% Superior to 0.5%
Voltage Stability Superior to 0.1%
Sampling Current 0~15A 0~10A 6.33mA~20A 6.33mA~20A
Sampling Voltage 0~50V 0~50V(peak value) 1V~316V
Measurement materials soft magnetic ferrite, permalloy, amorphous and nanocrystalline
Sample shape toroid, E and U shapes
Sample size No physical limitation, size affects the max H field,
Test Time 12s
Operating temperature range 23±5℃
A/D card PC5012 A/D Card PC6684 A/D Card



Configuration

Serial No. Product Name Model Qua. Unit Remarks
1 Hysteresisgraph  201SA 1 set  
2 Data Acquisition Card PC6684 or PC5012
(Insert in computer)
1 piece Install in computer
3 Measurement Software SMTest (Install in computer) 1 set  
4 Computer  Advantech IPC 1 set With 18.5 inch monitor
5 Printer HP1108 laser printer 1 set Blank laser printer
6 Standard Specimen Ring 1 piece  
7 Cabinet   1 set  

CAUTION:
As the products of our company are in constant updates, the change of products without pre-notice.