Revision Standard – Inactive-Reserved. Test methods useful in the design, analysis, and operation of magnetic cores in many types of applications are presented. Tests for specifying and\/or measuring permeability, core loss, apparent core loss, induction, hysteresis, thermal characteristics, and other properties are given. Most of the test methods described include specific parameter ranges, instrument accuracies, core sizes, etc., and may be used in the specification of magnetic cores for industrial and military applications. More generalized test procedures are included for the benefit of the R&D engineer and university student. Although the primary concern is with cores of the type used in electronics transformers, magnetic amplifiers, inductors, and related devices, many of the tests are adaptable to cores used in many other applications.<\/p>\n
| PDF Pages<\/th>\n | PDF Title<\/th>\n<\/tr>\n | ||||||
|---|---|---|---|---|---|---|---|
| 8<\/td>\n | 1 Scope Specific Types of Magnetic Cores to Which this Standard Applies Specific Applications to Which this Standard Is Directed References and Related Standards 1.3.1 References General Related Standards <\/td>\n<\/tr>\n | ||||||
| 9<\/td>\n | 2 Definitions 3 Configurations Effect of the Configuration or Geometry of the Core Material on Finished Product <\/td>\n<\/tr>\n | ||||||
| 10<\/td>\n | Basic Core Shapes Epstein Strip Core 4 Materials 4.1 Ferromagnetic 4.2 Ferrites <\/td>\n<\/tr>\n | ||||||
| 11<\/td>\n | Symbols and Terms Effective Parameters Permeability 5.2.1 Initial Permeability 5.2.2 Amplitude Permeability 5.2.3 Maximum Permeability <\/td>\n<\/tr>\n | ||||||
| 12<\/td>\n | 5.2.4 Incremental Permeability 5.2.5 Pulse Permeability 5.2.6 Complex Permeability 5.2.7 Differential Permeability 5.2.8 Impedance Permeability 5.2.9 Peak Permeability Core Loss Specific Core Loss Apparent Core Loss <\/td>\n<\/tr>\n | ||||||
| 13<\/td>\n | Specific Apparent Core Loss Equivalent Series Circuit Elements Equivalent Parallel Circuit Elements Loss Angle (Dissipation Factor) Relative Dissipation Factor Quality Factor Q Legg\u201as Equation Parameters <\/td>\n<\/tr>\n | ||||||
| 14<\/td>\n | Saturation Induction B Peak Induction B Residual Induction B 5.10.1 Remanent Induction 5.10.2 Squareness Ratio Coercive Field or Force H and H2 Reset Field Strengths 5.12.1 AH Reset Gain G Temperature Coefficient Temperature Factor of Permeability Curie Temperature or Curie Point T Disaccommodation <\/td>\n<\/tr>\n | ||||||
| 15<\/td>\n | 5.16.1 Disaccommodation Factor Magnetic Aging Turns Factor Induction Factor AL Volt-Second.Area Hysteresis Constant q6 5.21.1 Hysteresis Core Constant qi <\/td>\n<\/tr>\n | ||||||
| 16<\/td>\n | Test Methods Permeability Measurements Tests for Evaluating Cores With Pulsed Excitation Reference Pulse Shape <\/td>\n<\/tr>\n | ||||||
| 17<\/td>\n | Pulse Magnetization Characteristics Reference Pulse Shape <\/td>\n<\/tr>\n | ||||||
| 18<\/td>\n | Pulse Magnetization Characteristic <\/td>\n<\/tr>\n | ||||||
| 19<\/td>\n | Test Circuit A <\/td>\n<\/tr>\n | ||||||
| 21<\/td>\n | Pulse Magnetization Characteristics With and Without Bias <\/td>\n<\/tr>\n | ||||||
| 22<\/td>\n | Core Pulse Magnetization Characteristic <\/td>\n<\/tr>\n | ||||||
| 23<\/td>\n | 6.2.3 Pulse Permeability Applications Pulse Permeability Test Circuit <\/td>\n<\/tr>\n | ||||||
| 28<\/td>\n | Bridge Measurements <\/td>\n<\/tr>\n | ||||||
| 29<\/td>\n | Series Bridge Low Impedance Series Bridge (Low Q> <\/td>\n<\/tr>\n | ||||||
| 30<\/td>\n | Parallel Bridge (High Q) Parallel Bridge (Low Q) Core Loss and Apparent Core Loss Core-Loss Measurements With SinusoidaWoltage Excitation Core-Loss Measurements in Core Excited by Nonsinusoidal Signals <\/td>\n<\/tr>\n | ||||||
| 34<\/td>\n | Block Diagram of Wattmeter <\/td>\n<\/tr>\n | ||||||
| 35<\/td>\n | Saturing Core Tests Constant-Current Flux-Reset (CCFR) Core Test Method Test Points for the Constant-Current Flux-Reset Core Test Method Circuit for the Constant-Current Flux-Reset Core Test Method <\/td>\n<\/tr>\n | ||||||
| 38<\/td>\n | Sine-Current-Excitation Core Test Method <\/td>\n<\/tr>\n | ||||||
| 39<\/td>\n | Basic Circuit for Sine-Current Excitation Core Tester <\/td>\n<\/tr>\n | ||||||
| 42<\/td>\n | Measuring Marker Traces <\/td>\n<\/tr>\n | ||||||
| 43<\/td>\n | Presenting Magnetic Data on Core Materials Methods to Obtain Hysteresis Loops and Magnetization Curves 6.6.1 General Considerations <\/td>\n<\/tr>\n | ||||||
| 45<\/td>\n | Elementary DC Hysteresis Loop Tester <\/td>\n<\/tr>\n | ||||||
| 46<\/td>\n | Simplified Hysteresigraph <\/td>\n<\/tr>\n | ||||||
| 47<\/td>\n | Direct Measurement of Flux Density 6.7.1 Hall-Effect Gaussmeter <\/td>\n<\/tr>\n | ||||||
| 48<\/td>\n | Dynamic Hysteresis Loop Measurement 6.8.1 Oscilloscope Techniques <\/td>\n<\/tr>\n | ||||||
| 49<\/td>\n | Voltmeter-hmeter Methods 6.9.1 Impedance Permeability 6.9.2 Sine-Flux Test <\/td>\n<\/tr>\n | ||||||
| 50<\/td>\n | Sine-Flux Impedance Permeability Test <\/td>\n<\/tr>\n | ||||||
| 51<\/td>\n | 6.9.3 Sine-Current Test Sine-Current Impedance Permeability Test <\/td>\n<\/tr>\n | ||||||
| 52<\/td>\n | Calculation of Mean Path Length Calculation of Flux-Path Cross-Sectional Area Standard Test Conditions Calculations of Induced Voltage 6.9.8 Test Procedure 7 Bibliography <\/td>\n<\/tr>\n | ||||||
| 55<\/td>\n | Methods to Obtain Hysteresis Loops and Magnetization Curves With Older Equipment A1 Determination of the Basic Symmetrical Hysteresis Loop Hysteresis Loop Test Circuit <\/td>\n<\/tr>\n | ||||||
| 56<\/td>\n | Hysteresis Loop <\/td>\n<\/tr>\n | ||||||
| 57<\/td>\n | A2 Determination of the Normal Magnetization Characteristic A3 Determination of the Virgin Magnetization Curve <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":" IEEE Standard for Test Procedures for Magnetic Cores<\/b><\/p>\n |