SU546815A1 - The eddy current method of controlling the electromagnetic parameters of metal products - Google Patents
The eddy current method of controlling the electromagnetic parameters of metal productsInfo
- Publication number
- SU546815A1 SU546815A1 SU1849609A SU1849609A SU546815A1 SU 546815 A1 SU546815 A1 SU 546815A1 SU 1849609 A SU1849609 A SU 1849609A SU 1849609 A SU1849609 A SU 1849609A SU 546815 A1 SU546815 A1 SU 546815A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- controlling
- eddy current
- current method
- metal products
- electromagnetic parameters
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
- Arc Welding Control (AREA)
Description
На чертеже показана блок-схема устройства дл осуществлени предлагаемого способа.The drawing shows a block diagram of an apparatus for implementing the inventive method.
Устройство содержит генераторы 1 и 2, питающие измерительный 3 и эталонный 4 преобразователи напр жени частот coi и (02, подключенные к усилител м 5 и 6. На выходах усилителей включены фазовые детекторы 7 и 8, опорные напр жени на которые поступают соответственно с генераторов через, фазовращатели 9 и 10.The device contains generators 1 and 2, supplying measuring 3 and reference 4 frequency converters coi and (02, connected to amplifiers 5 and 6. At the outputs of the amplifiers, phase detectors 7 and 8 are connected, the reference voltages of which are received from the generators respectively , phase shifters 9 and 10.
Выходы фазовращателей соединены со входами вычитающего каскада 11 с индикатором 12.The outputs of the phase shifters are connected to the inputs of the subtracting stage 11 with the indicator 12.
Выходное иапр жение фазового детектора 7 при контроле сварки можно представить в виде;The output voltage of the phase detector 7 during welding control can be represented as;
U, Un+V,,,U, Un + V ,,,
где UK - напр жение, завис щее от качества литого дра,where UK is the voltage depending on the quality of the cast core,
t/b -напр жение, завис щее от электропроводности материала в зоне п тна.t / b is the voltage dependent on the electrical conductivity of the material in the spot area.
Вы.ходиое напр жение фазового детектора 8High voltage of phase detector 8
,,,,
где /23 - напр жение, завис щее от электропроводности материала свариваемых листов.where / 23 is the voltage depending on the electrical conductivity of the material of the welded sheets.
Так как отношение - 1, то после Since the ratio is 1, then after
рации вычитани radio subtraction
+tyь- 2. , + ty-2.,
т. е. показани индикатора характеризуют только качество сварки.i.e. the indicator readings characterize only the quality of welding.
Таким образом, при поддержании посто нства обобщенного параметра контрол при неравных рабочих частотах можно надежно отстроитьс от мешающих параметров, в частности от изменени электропроводности материала при контроле качества сварки.Thus, while maintaining the constancy of the generalized control parameter at unequal operating frequencies, it is possible to reliably separate from interfering parameters, in particular, from a change in the electrical conductivity of the material while monitoring the quality of welding.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1849609A SU546815A1 (en) | 1972-11-24 | 1972-11-24 | The eddy current method of controlling the electromagnetic parameters of metal products |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU1849609A SU546815A1 (en) | 1972-11-24 | 1972-11-24 | The eddy current method of controlling the electromagnetic parameters of metal products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU546815A1 true SU546815A1 (en) | 1977-02-15 |
Family
ID=20532971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU1849609A SU546815A1 (en) | 1972-11-24 | 1972-11-24 | The eddy current method of controlling the electromagnetic parameters of metal products |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU546815A1 (en) |
-
1972
- 1972-11-24 SU SU1849609A patent/SU546815A1/en active
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