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Изобретение относитс к средствам контрол толщины покрытий и может быть использовано в неразрушающем контроле ферромагнитных материалов дл измерени толщины упрочненного сло .The invention relates to means for controlling the thickness of coatings and can be used in non-destructive testing of ferromagnetic materials to measure the thickness of the hardened layer.
Цель изобретени - повышение точности измерений.The purpose of the invention is to improve the accuracy of measurements.
На чертеже приведена структурна схема устройства, реализующего способ.The drawing shows a structural diagram of a device that implements the method.
Устройство состоит из магнитной плен- ки с управл емой доменной структурой 1, расположенной на контролируемой поверхности 2, покрывающей магнитное основание 3. Кольцеобразный магнит 4 находитс сверху магнитной пленки. На магнитной пленке создаетс домен цилиндрической формы, который наблюдают в пол ризованном свете через блок визуализации 5. Изме- р ют диаметр домена, которыйThe device consists of a magnetic film with a controlled domain structure 1 located on a controlled surface 2 covering the magnetic base 3. An annular magnet 4 is located on top of the magnetic film. A cylindrical domain is created on the magnetic film and observed in polarized light through imaging unit 5. The diameter of the domain is measured.
пропорционален толщине немагнитного покрыти .proportional to the thickness of the non-magnetic coating.
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| SU894708815ARU1798617C (en) | 1989-05-10 | 1989-05-10 | Method of measurement of thickness of nonmagnetic coating of ferromagnetic base | 
| Application Number | Priority Date | Filing Date | Title | 
|---|---|---|---|
| SU894708815ARU1798617C (en) | 1989-05-10 | 1989-05-10 | Method of measurement of thickness of nonmagnetic coating of ferromagnetic base | 
| Publication Number | Publication Date | 
|---|---|
| RU1798617Ctrue RU1798617C (en) | 1993-02-28 | 
| Application Number | Title | Priority Date | Filing Date | 
|---|---|---|---|
| SU894708815ARU1798617C (en) | 1989-05-10 | 1989-05-10 | Method of measurement of thickness of nonmagnetic coating of ferromagnetic base | 
| Country | Link | 
|---|---|
| RU (1) | RU1798617C (en) | 
| Title | 
|---|
| Авторское свидетельство СССР N 1262354, кл. G 01 N 27/90, 1985. А.М.Валитов и Г.И.Шилов. Приборы и методы контрол толщины покрытий. Л.: Машиностроение, 1970, с.7-9,* | 
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