SU458792A1 - Method for measuring coercivity of ferromagnetic products - Google Patents
Method for measuring coercivity of ferromagnetic productsInfo
- Publication number
- SU458792A1 SU458792A1 SU1906673A SU1906673A SU458792A1 SU 458792 A1 SU458792 A1 SU 458792A1 SU 1906673 A SU1906673 A SU 1906673A SU 1906673 A SU1906673 A SU 1906673A SU 458792 A1 SU458792 A1 SU 458792A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- measuring
- coercivity
- ferromagnetic products
- coincidence
- coercive force
- Prior art date
Links
Landscapes
- Measuring Magnetic Variables (AREA)
Description
1one
Изобретение относитс к области приборостроени и используетс дл измерени коэрцитивной силы в издели х из ферромагнитных материалов.The invention relates to the field of instrumentation and is used to measure the coercive force in products made of ferromagnetic materials.
Известен способ измерени коэрцитивной силы по величине размагничиваюш,его тока, отсчитываемого при совпадении сигнала, пропорционального модулю магнитной индукции в контролируемом изделии, с опорным сигналом , неизменным в пределах цикла измерени .There is a known method for measuring the coercivity by the magnitude of a demagnetized, its current, measured when the signal coincides, which is proportional to the magnetic induction modulus in the monitored product, with a reference signal that remains unchanged during the measurement cycle.
Погрешности измерени такого способа обусловлены нестабильностью опорного сигнала, коэффициента передачи измерительного канала , а также порога чувствительности сравнивающего устройства.The measurement errors of this method are due to the instability of the reference signal, the transmission coefficient of the measuring channel, as well as the sensitivity threshold of the comparing device.
Цель изобретени - повышение точности измерени коэрцитивной силы.The purpose of the invention is to improve the accuracy of measurement of the coercive force.
Это достигаетс тем, что размагничивают изделие от момента первого совпадени упом нутых сигналов до момента их второго совпадени , отсчитывают размагничиваюш.ий ток в момент второго совпадени сигпалов и по полусумме токов, полученных при первом и втором совпадени х сигналов, суд т о коэрцитивной силе. Способ состоит в том, что погрешности измерени при первом и втором совпадени х в значительной степени компенсируютс . За счет этого точность измерени может быть существенно повышена, причем реализаци этого способа не требует изменени существующих устройств дл намерени коэрцитивной силы.This is achieved by demagnetizing the product from the moment of the first coincidence of the mentioned signals to the moment of their second coincidence, demagnetizing their current at the time of the second coincidence of sigpals and half the sum of currents received at the first and second coincidences of signals is judged by the coercive force. The method is that the measurement errors at the first and second matches are substantially compensated. Due to this, the measurement accuracy can be significantly improved, and the implementation of this method does not require changing the existing devices for the purpose of coercive force intention.
Предмет изобретет The subject will invent
Способ измерени коэрцитивпой силы ферромаг {итных изделий, основанный па сравнении сигнала, пропорционального модулю магпитной ипдукции в изделии с опорным сигналом , неизменным в пределах цикла измерени , отличающийс тем, что, с целью повышени точности измерени , производ т размагничивание издели от момента первогоA method for measuring the coercive force of ferromagnetic products based on comparing a signal proportional to the magnet ipduction module in a product with a reference signal that remains unchanged during the measurement cycle, characterized in that, in order to improve the measurement accuracy, the product is demagnetized from the moment of the first
совпадени упом нутых сигналов до момента второго их совпадени , производ т отсчет размагпичивающего тока в момепт второго совпадени сигналов и по полусумме токов, полученных при первом и втором совпадени хthe coincidence of the mentioned signals until the second coincidence of them, the demagping current is read in the second coincidence point of the signals and according to the half-sum of the currents obtained during the first and second coincidences
сигналов, суд т о коэрцитивной силе.signals judged by coercivity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1906673A SU458792A1 (en) | 1973-04-13 | 1973-04-13 | Method for measuring coercivity of ferromagnetic products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1906673A SU458792A1 (en) | 1973-04-13 | 1973-04-13 | Method for measuring coercivity of ferromagnetic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU458792A1 true SU458792A1 (en) | 1975-01-30 |
Family
ID=20549248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1906673A SU458792A1 (en) | 1973-04-13 | 1973-04-13 | Method for measuring coercivity of ferromagnetic products |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU458792A1 (en) |
-
1973
- 1973-04-13 SU SU1906673A patent/SU458792A1/en active
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