PL433185A1 - Measuring transducer for testing conductive materials and method of testing conductive materials - Google Patents
Measuring transducer for testing conductive materials and method of testing conductive materialsInfo
- Publication number
- PL433185A1 PL433185A1 PL433185A PL43318520A PL433185A1 PL 433185 A1 PL433185 A1 PL 433185A1 PL 433185 A PL433185 A PL 433185A PL 43318520 A PL43318520 A PL 43318520A PL 433185 A1 PL433185 A1 PL 433185A1
- Authority
- PL
- Poland
- Prior art keywords
- permanent magnets
- transducer
- conductive materials
- measuring elements
- testing conductive
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
Przetwornik pomiarowy do badania materiałów przewodzących metodą prądów wirowych, zawierający magnesy trwałe, aktuatory, wspornik, układ sterujący, charakteryzuje się tym, że ma magnesy trwałe (1) zamocowane każdy na przymocowanym do wspornika (2) aktuatorze liniowym (3), umożliwiającym każdemu z magnesów trwałych (1) ruch posuwisto - zwrotny. Magnesy trwałe (1) rozłożone są wzdłuż osi podłużnej przetwornika, zaś pod magnesami trwałymi (1) zamocowany jest na drugim, niemagnetycznym i nieprzewodzącym wsporniku (4), zespół elementów pomiarowych (5), rozmieszczonych symetrycznie wzdłuż osi podłużnej przetwornika i połączonych parami różnicowo. Każda para elementów pomiarowych (5) połączona jest z wejściem odpowiedniego wzmacniacza (6), którego wyjście połączone jest z wielokanałowym przetwornikiem analogowo - cyfrowym (7) połączonym z układem sterującym (8), który połączony jest ze sterownikiem (9). Sposób badania materiałów przewodzących przy pomocy przetwornika zawierającego magnesy trwałe, charakteryzuje się tym, że na podstawie wyników symulacji numerycznych umożliwiających określenie zmieniającego się w czasie rozkładu gęstości prądów wirowych w badanym materiale, wprawia się, przy pomocy układu sterującego, magnesy trwałe, w różnej kolejności, w zsynchronizowany ruch posuwisto - zwrotny, generujący prądy wirowe w umieszczonym bezpośrednio pod magnesami badanym materiale, które powodują zmienne pole magnetyczne indukujące napięcie w różnicowo połączonych elementach pomiarowych, a następnie wypadkowe napięcie zaindukowane w elementach pomiarowych wzmacnia się, przetwarza na postać cyfrową i zapisuje w układzie sterującym.The measuring transducer for testing conductive materials by the eddy current method, containing permanent magnets, actuators, bracket, control system, is characterized by the fact that it has permanent magnets (1) fixed each on a linear actuator (3) attached to the bracket (2), enabling each of the permanent magnets (1) reciprocating movement. Permanent magnets (1) are distributed along the longitudinal axis of the transducer, and under the permanent magnets (1), a set of measuring elements (5) is mounted on the second, non-magnetic and non-conductive support (4), symmetrically arranged along the longitudinal axis of the transducer and connected differently in pairs. Each pair of measuring elements (5) is connected to the input of the appropriate amplifier (6), the output of which is connected to a multi-channel analog-to-digital converter (7) connected to the control system (8), which is connected to the controller (9). The method of testing conductive materials with a transducer containing permanent magnets is characterized by the fact that, based on the results of numerical simulations that enable the determination of the time-varying distribution of eddy current density in the tested material, permanent magnets are set in a different order by means of a control system, into a synchronized reciprocating movement, generating eddy currents in the tested material placed directly under the magnets, which cause an alternating magnetic field inducing voltage in differentially connected measuring elements, and then the resultant voltage induced in the measuring elements is amplified, converted into a digital form and saved in the system controlling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL433185A PL239841B1 (en) | 2020-03-10 | 2020-03-10 | Measuring transducer for testing conductive materials and method of testing conductive materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PL433185A PL239841B1 (en) | 2020-03-10 | 2020-03-10 | Measuring transducer for testing conductive materials and method of testing conductive materials |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PL433185A1 true PL433185A1 (en) | 2021-09-13 |
| PL239841B1 PL239841B1 (en) | 2022-01-17 |
Family
ID=77662658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL433185A PL239841B1 (en) | 2020-03-10 | 2020-03-10 | Measuring transducer for testing conductive materials and method of testing conductive materials |
Country Status (1)
| Country | Link |
|---|---|
| PL (1) | PL239841B1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PL442704A1 (en) * | 2022-11-02 | 2024-05-06 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Measuring transducer for testing conductive materials using the eddy current method |
| PL442701A1 (en) * | 2022-11-02 | 2024-05-06 | Zachodniopomorski Uniwersytet Technologiczny W Szczecinie | Measuring transducer for testing conductive materials using the eddy current method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009002681A (en) * | 2007-06-19 | 2009-01-08 | Satoru Hirano | Magnetic measuring device provided with permanent magnet which performs periodic motion and oscillating coil |
| DE102012017871A1 (en) * | 2012-09-06 | 2014-03-06 | Institut Dr. Foerster Gmbh & Co. Kg | Differential sensor and method for detecting anomalies in electrically conductive materials |
| US10209223B2 (en) * | 2015-05-26 | 2019-02-19 | The Boeing Company | Real-time fusion of ultrasound and eddy current data during non-destructive examination |
| RU2610931C1 (en) * | 2015-11-10 | 2017-02-17 | Общество с ограниченной ответственностью "АльфаСервис" | Method of eddy current testing of electrically conductive objects and device for its implementation |
-
2020
- 2020-03-10 PL PL433185A patent/PL239841B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| PL239841B1 (en) | 2022-01-17 |
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