DC Static Hysteresis Graph

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DC STATIC HYSTERESIS GRAPH MODEL NO.- ACM- SHG-2216

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DC STATIC HYSTERESIS GRAPH MODEL NO.- ACM- SHG-2216 Automatic measurement on basic magnetization curve and magnetic hysteresis loop under static state of soft magnetic material, accurate measurement on static magnetic characteristic parameters such as initial permeability µi, maximum permeability µm, saturation magnetic induction Bs, remanence Br, coercive Hc and hysteresis losses Pu.Windows measurement software applied simply. It conforms to China National Standards GB 3656-83, GB 3657-83, GB/T 13012-91, GJB 937-90, industry standard SJ/T 10281-91 and international standard IEC 60404-4, IEC 404-7.

In accordance with measuring principle of ballistic method, combine computer control technology, A/D and D/A, replace conventional ballistic galvanometer with electronic integrator, realize analog ballistic method measurement under microcomputer control, can completely eliminate non-instant error caused by ballistic galvanometer in classical ballistic method, with high measurement accuracy, fast speed and good repeatability, can eliminate the influence of various artificial factors, and supply reliable basis for research on material magnetization process. Ÿ Testing sample varieties: soft magnetic ferrite, permalloy, amorphous, nano crystal, iron dust core,

electrician ferrite and stalloy. Ÿ Testing sample shapes: toroid, E and U closing samples, and strip (bar) and chip open samples. Ÿ Closing sample direct winding measurement: sample, magnetizing coil (N1) and measuring coil (N2)

form a no-load transformer. Ÿ Measure magnetic field intensity through measuring

magnetizing current, magnetic field lock precision as high as 0.1%. Ÿ Adopt electronic integrator to measure magnetic

induction, zero drift of integrator can be self-corrected through software. Ÿ Solenoid or permeameter shall be equipped to measure open samples, the inner field can be

measured by the magnetic potentiometer inside.

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Ÿ Testing method: analog ballistic method and magnetic field sweep. Ÿ Adopt analog ballistic method to measure basic magnetization curve, can accurately measure magnetic

characteristic parameters on magnetization curve: µi, µm, Bs, value µ of any point. Ÿ Adopt analog ballistic method and magnetic field sweep to measure saturation hysteresis loop, can

accurately measure magnetic characteristic parameters on hysteresis loop: Bs, Br, Hc and Pu. Special explanation: analog ballistic method to measure hysteresis loop is an exclusive measuring method of our company, can greatly improve the accuracy of Hc and Br. Ÿ Automatic demagnetization function before µi testing, 10 Hz AC saturation demagnetization adopted. Ÿ Select to test single parameter with analog ballistic method to save time, the time of every testing point

can be set from 0.1 second to 0.9 second. Ÿ Adopt the B speed feedback, it can automatic regulate the density with the shape of sample magnetic

characteristic curve, and curve can also be tested according to the testing point predefined by users. Ÿ Powerful software functions with minimal technical requirements for testing staff. Ÿ Operate under Windows 95/98, Windows 2000/XP operating systems, conform to Windows software

specification, visual and simple operation. Ÿ Full automatic control, intelligent identification, users' interventions are unnecessary in the whole testing

process. Ÿ Sampling waveform and instrument status under real-time monitoring, and can be stopped at any time. Ÿ The effective sectional area and length of magnetic path of samples can be calculated according to the

overall dimension of samples. Ÿ Automatic detection on sample test condition, facilitate users to test unknown samples. File system

adopts database format, can directly print or output test result to Excel form. Ÿ Powerful file management functions: data saving and deleting, remove all the data etc. Ÿ Data files contain complete sampled data, sample parameters, instrument parameters and testing

schemes, adopt text format and can be conveniently typed into other software.

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Ÿ Display B(H) magnetization curve, B(H) magnetic hysteresis loop or µ(H) permeability curve, and can

display coordinate information of every data point on curve. Ÿ Support various models of printers, test report accurately match printer sheet. Ÿ Print preview function, it can conveniently regulate the size and edge distance of test report. Ÿ Test report can be directly printed, or generate JPG image file. Ÿ JPG image file can be sent directly through E-mail, or saved into disk. Ÿ Test reports contain complete curve diagrams, test results, test conditions and sample parameters. Ÿ Both Chinese and English format can be adopted to facilitate adding user mark and enterprise name. Ÿ Multiple unit systems optional to satisfy the application habits of different users.

System Specifications Adopt ballistic method measurement, technical indices as follows:

Parameters measured

Bm (%) Br (%) Hc (%) Pu (%)

um (%) um(%)

Uncertainty (k = 2)

1

1

1.5

10

2

5

Repeatability (constant temperature)

0.5

-

+1

2

3

2

When testing hysteresis loop with scanning method, H and B measuring errors can be estimated as: Ÿ B: 1% + ½ LSB Ÿ H: 1% + ½ LSB

Instrument Specifications MATS - 2010SD Static Hysteresisgraph

PC6616 A/D D/A Card

Output Voltage: 0 ~ ±35 V

A / D Conversion: 16 bits, 16 channels

Output Current: 0.01 mA ~ 10 A

Conversion Time: < 10 µs

Current Range: 1 mA, 2 mA, 5 mA, 10 mA, 20 mA, 50

Conversion Accuracy: 0.02% (full range)

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mA, 100 mA, 200 mA,500 mA, 1 A, 2 A, 5 A, 10 A total

D/A Conversion: 12 bits, 2 channels

13 automatic ranges

Stability: superior to 0.05%

Conversion Accuracy: 0.1% (full range)

Flux Range: 0.25, 0.5, 1, 2, 5, 10, 20 mWb, total seven

Bus Structure: PCI busbar

automatic ranges Sensitivity: 0.05 ÂľWb (ballistic method) 0.1 ÂľWb (magnetic field sweep)

TECHNOCRACY PVT. LTD.

An ISO 9001 : 2208 | ISO 14001 : 2008 | ISO 13485 WHO: GMP Products | GLP Compliant Products

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