SU559166A1 - Eddy current transducer with two control zones - Google Patents
Eddy current transducer with two control zonesInfo
- Publication number
- SU559166A1 SU559166A1 SU2184735A SU2184735A SU559166A1 SU 559166 A1 SU559166 A1 SU 559166A1 SU 2184735 A SU2184735 A SU 2184735A SU 2184735 A SU2184735 A SU 2184735A SU 559166 A1 SU559166 A1 SU 559166A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnetic
- section
- magnetic core
- middle rod
- winding
- Prior art date
Links
Landscapes
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Description
(54)(54)
ВИХРЕТОКОВЫЙ ПРЕОБРАЗОВАТЕЛЬ С ДВУМЯ КОНТРОЛЯVIRTUAL CONVERTER WITH TWO CONTROLS
Изобре-тение относигс к технике неразрушающего контрол качества материалов и изделий методом вихревых токов и может быть использовано в качестве первичного преобразовател в дефектоскопах селективного контрол The invention relates to the technique of non-destructive quality control of materials and products by the method of eddy currents and can be used as a primary converter in selective-control defectoscopes
Известен вихретоковый преобразователь с измен ющейс в процессе контрол топологией возбуждающего пол . В замкнутом магнитопроводе преобразовател вблизи рабочей поверхности выполнено отверстие, в котором размещен проводник, соединенный с регулируемым источником тока. При изменении силы тока, протекающего через этот проводник, насыщаютс различные области магнитопровода и измен етс топологи возбуждающего пол преобразовател A eddy current transducer is known with a topological field changing in the course of control. In a closed transducer magnetic circuit near the working surface there is a hole in which a conductor is placed, which is connected to an adjustable current source. When the current flowing through this conductor changes, various areas of the magnetic circuit are saturated and the topology of the drive field of the converter changes.
ll
Обнаружение критического размера дефекта таким преобразователем возможно тол ко при его перемещении по поверхности котролируемого издели , что снижает динамические качества контрол , осуществл етс лишь последовательный контроль параметров различных участков издели .Detection of a critical defect size by such a converter is possible only when it moves along the surface of the controlled product, which reduces the dynamic qualities of the control, only sequential monitoring of the parameters of different sections of the product is carried out.
Однако дл повыщенн разрешак ц(;:й спо™ собности преобразовател необходимы одновременный контроль и сравнение пгфаме г ров двух р дом расположенных участков издели .However, in order to improve permissions (;: th transducer capacity, it is necessary to simultaneously monitor and compare the phras of the two adjacent areas of the product.
Известен вихретоковый преобразовате.чь с двум зонами контрол . Его магнито- провод представл ет, собой Ш-образный сердечник , центральный стерл ень которого охвачен короткозамкнутым витком 2J .The eddy current transducer with two zones of control is known. Its magnetic conductor is an W-shaped core, the center wipe of which is covered by a short-circuited coil 2J.
Две зоны контрол , образованные, пол ми выпучивани з зазоров Ш-образного сердечника, сохран ют фиксированную топологию в процессе контрол , измен ть которую не представл етс возможным, и датчик не может быть использован дл селективного контрол изделий.The two control zones formed by the fields of bulging gaps of the W-shaped core retain a fixed topology in the control process, which cannot be changed, and the sensor cannot be used for selective control of products.
Цель изобретени - обеспечение селективного контрол .The purpose of the invention is to provide selective control.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2184735A SU559166A1 (en) | 1975-10-27 | 1975-10-27 | Eddy current transducer with two control zones |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU2184735A SU559166A1 (en) | 1975-10-27 | 1975-10-27 | Eddy current transducer with two control zones |
Publications (1)
Publication Number | Publication Date |
---|---|
SU559166A1 true SU559166A1 (en) | 1977-05-25 |
Family
ID=20635751
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU2184735A SU559166A1 (en) | 1975-10-27 | 1975-10-27 | Eddy current transducer with two control zones |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU559166A1 (en) |
-
1975
- 1975-10-27 SU SU2184735A patent/SU559166A1/en active
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