SU447652A1 - Method for measuring losses in magnetization reversal of magnetically soft materials - Google Patents
Method for measuring losses in magnetization reversal of magnetically soft materialsInfo
- Publication number
- SU447652A1 SU447652A1 SU1822378A SU1822378A SU447652A1 SU 447652 A1 SU447652 A1 SU 447652A1 SU 1822378 A SU1822378 A SU 1822378A SU 1822378 A SU1822378 A SU 1822378A SU 447652 A1 SU447652 A1 SU 447652A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- soft materials
- magnetically soft
- magnetization reversal
- measuring
- measuring losses
- Prior art date
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Description
1one
Изобретение относитс к измерительной технике и может быть использовано дл измерени потерь на перемагничивание магнитом гких материалов, примен емых в электро- и радиотехнике, автоматике и вычислительной технике.The invention relates to a measurement technique and can be used for measuring the magnetic reversal loss of magnetically soft materials used in electrical and radio engineering, automation and computer technology.
Известны способы измерени потерь на перемагничивание магнитом гких материалов, основанные на применении трансформаторных мостов. А так как процесс измерени известными способами св зан с уравновешиванием моста по основной частоте перемагничивани материала, они практически непригодны, если форма перемагничивающего сигнала значительно отличаетс от синусоиды.Methods are known for measuring the magnetic reversal loss of magnetically soft materials based on the use of transformer bridges. And since the measurement process by known methods is associated with balancing the bridge over the fundamental frequency of the magnetization reversal of the material, they are practically unsuitable if the shape of the magnetization reversal signal is significantly different from the sinusoid.
Цель изобретени - обеспечение возможности измерени потерь при несинусоидальных режимах намагничивани .The purpose of the invention is to make it possible to measure losses in non-sinusoidal magnetization modes.
Дл этого по предложенному способу измер ют эффективное значение тока во вторичной обмотке трансформаторного моста, а потери подсчитывают по разности квадратов токов, измеренных прибором в случае, когда все обмотки моста включены и когда обмотка в плече активного сопротивлени отключена, причем величины активного и реактивного сопротивлений , на которые нагружена вторична обмотка образца, выбирают много большими внутреннего сопротивлени этой обмотки , а при первом измерении тока регулировкой числа витков первичных обмоток трансформаторного моста добиваютс минимального показани прибора. Сушность предлагаемого способа заключаетс в следуюшем.To do this, according to the proposed method, the effective value of the current in the secondary winding of the transformer bridge is measured, and the losses are calculated by the difference of the squares of currents measured by the device in the case when all the windings of the bridge are turned on and when the winding in the resistance arm is turned off, on which the secondary winding of the sample is loaded, the inner resistance of this winding is chosen much higher, and in the first measurement of the current by adjusting the number of turns of the primary windings of the trans Ormatorny bridge achieve minimum instrument readings. Dryness of the proposed method is as follows.
Разность квадратов токов, измеренных в случае, когда все обмотки трансформаторного моста включены н когда отключена обмотка в плече активного сопротивлени , пропорциональна потер м на перемагничивание магнитом гкого материала. В этом случае коэффициент пропорциональности определ етс параметрами измерительной схемы, а погрешность измерени мало зависит от формы намагничиваюшего сигнала.The difference in the squares of the currents measured in the case when all the windings of the transformer bridge are turned on when the winding in the active resistance leg is disconnected is proportional to the magnetic bias reversal loss of the magnetic material. In this case, the proportionality coefficient is determined by the parameters of the measuring circuit, and the measurement error depends little on the shape of the magnetizing signal.
На чертеже изображена схема устройства, реализуюш,его предлагаемый способ.The drawing shows a diagram of the device, realizing, its proposed method.
Устройство содержит генератор 1 намагничиваюш;их сигналов, испытуемый образец 2,The device contains a generator 1 magnetized; their signals, the test sample 2,
на котором расположены первична 3 и вторична 4 обмотки, вольтметр 5 дл измерени эффективного значени напр жени , активное сопротивление 6 и индуктивность 7, включенные параллельно и вл ющиес нагрузкойwhere primary 3 and secondary 4 windings are located, a voltmeter 5 for measuring the effective value of the voltage, resistance 6 and inductance 7 connected in parallel and acting as a load
вторичной обмотки образца, трансформаторный мост 8 с первичной обмоткой 9, включенной в плечо с активным сопротивлением 6, первичной обмоткой 10, включенной в плечо с индуктивностью, первичной обмоткой 11,secondary winding of the sample, transformer bridge 8 with the primary winding 9, included in the shoulder with active resistance 6, primary winding 10, included in the shoulder with inductance, primary winding 11,
включенной последовательно с первичной обincluded in series with the primary about
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1822378A SU447652A1 (en) | 1972-08-25 | 1972-08-25 | Method for measuring losses in magnetization reversal of magnetically soft materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1822378A SU447652A1 (en) | 1972-08-25 | 1972-08-25 | Method for measuring losses in magnetization reversal of magnetically soft materials |
Publications (1)
Publication Number | Publication Date |
---|---|
SU447652A1 true SU447652A1 (en) | 1974-10-25 |
Family
ID=20525342
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1822378A SU447652A1 (en) | 1972-08-25 | 1972-08-25 | Method for measuring losses in magnetization reversal of magnetically soft materials |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU447652A1 (en) |
-
1972
- 1972-08-25 SU SU1822378A patent/SU447652A1/en active
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