SU972576A2 - Device for checking magnetic head front gap - Google Patents
Device for checking magnetic head front gap Download PDFInfo
- Publication number
- SU972576A2 SU972576A2 SU813284961A SU3284961A SU972576A2 SU 972576 A2 SU972576 A2 SU 972576A2 SU 813284961 A SU813284961 A SU 813284961A SU 3284961 A SU3284961 A SU 3284961A SU 972576 A2 SU972576 A2 SU 972576A2
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- magnetic head
- gap
- working
- working gap
- optically transparent
- Prior art date
Links
Description
1 ; Изобретение относитс к магнитнойone ; This invention relates to magnetic
записи, а именно к устройствам дл контрол рабочего зазора магнитной головки.records, namely, to devices for controlling the working gap of the magnetic head.
По основному авт.св. № 5932 1 известно устройство дл контрол рабочего зазора магнитной головки, содержащее источник света, оптическую систему в виде двух пол роидов, магнитооптический датчик, оптический индикатор и источник посто нного напр жени дл питани обмотки магнит ной головки, В устройстве магнитооптический датчик выполнен в виде кюветы с оптически прозрачным раствором ферромагнитной жидкости. Известное устройство позвол ет обеспечить относительно высокую производительность контрол рабочего зазора магнитной головки 1 .According to the main auth. No. 5932-1, a device for monitoring the working gap of a magnetic head is known, which contains a light source, an optical system in the form of two polaroids, a magneto-optical sensor, an optical indicator and a constant voltage source for powering the winding of the magnetic head. with an optically transparent solution of ferromagnetic fluid. The known device allows to provide a relatively high performance control of the working gap of the magnetic head 1.
Недостаток известного устройства состоит в значительной погрешности контрол рабочего зазора магнитной головки.A disadvantage of the known device consists in a significant error of control of the working gap of the magnetic head.
Цель изобретени - уменьшение погрешности контрол рабочего зазора магнитной головки.The purpose of the invention is to reduce the error control of the working gap of the magnetic head.
Эта цель достигаетс тем, что в устройство дл контрол рабочего зазора магнитной головки введена эталонна магнитна головка, размещенна в кювете с оптически прозрачным раствором ферромагнитной жидкости и выполненна с обмоткой, подсоединенной к источнику посто нного напр же ни , причем рабочий зазор эталонной магнитной головки расположен симметрично против рабочего зазора контролируемой магнитной головки.This goal is achieved by inserting a reference magnetic head placed in a cell with an optically transparent solution of a ferromagnetic fluid and made with a winding connected to a constant voltage source, in which the working gap of the reference magnetic head is symmetrically inserted into the device for controlling the working gap of the magnetic head. against working gap controlled magnetic head.
На чертеже показан один из возможных вариантов устройства дл контрол рабочего зазора магнитной . головки.The drawing shows one of the possible options for the device to control the working gap magnetic. heads.
Устройство содержит источник 1 света, оптическую систему в виде двух пол роидов 2, магнитооптический датчик 3 г оптический индикатор k и источник 5 посто нного напр жеThe device contains a source of light 1, an optical system in the form of two polaroids 2, a magneto-optical sensor 3 g, an optical indicator k and a source 5 of constant voltage
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813284961A SU972576A2 (en) | 1981-05-04 | 1981-05-04 | Device for checking magnetic head front gap |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU813284961A SU972576A2 (en) | 1981-05-04 | 1981-05-04 | Device for checking magnetic head front gap |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU593241A Addition SU121038A1 (en) | 1958-02-24 | 1958-02-24 | Method of glue fastening of non-metallic parts to metal |
Publications (1)
Publication Number | Publication Date |
---|---|
SU972576A2 true SU972576A2 (en) | 1982-11-07 |
Family
ID=20956789
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU813284961A SU972576A2 (en) | 1981-05-04 | 1981-05-04 | Device for checking magnetic head front gap |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU972576A2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677513A (en) * | 1983-12-29 | 1987-06-30 | Fuji Photo Film Co., Ltd. | Magneto-optic thin film head and method of use |
-
1981
- 1981-05-04 SU SU813284961A patent/SU972576A2/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4677513A (en) * | 1983-12-29 | 1987-06-30 | Fuji Photo Film Co., Ltd. | Magneto-optic thin film head and method of use |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE3867326D1 (en) | FIBER OPTICAL SENSOR. | |
EP0390581A3 (en) | Instrument for concurrently optically measuring thermal and electric quantities | |
EP0283002A3 (en) | Optical head | |
GB1499562A (en) | Optical record reader | |
EP0243005A3 (en) | Fiber optic imaging system for on-line monitoring | |
EP0235304A4 (en) | Anamorphic prism. | |
SU972576A2 (en) | Device for checking magnetic head front gap | |
JPS57133537A (en) | Magnetic and optical recording and reproducing head | |
ATE101927T1 (en) | DEVICE FOR COUPLING THE LIGHT ENERGY OF A LASER BEAM INTO A FIBER OPTIC FIBER OPTIC GUIDE AND METHOD FOR ADJUSTING AND MONITORING THE POSITION OF THE END OF THE FIBER OPTIC FIBER OPTIC GUIDE. | |
CA2013836A1 (en) | Optical recording and reproducing apparatus | |
JPS5548872A (en) | Write-in unit for servo signal | |
JPS6448238A (en) | Optical system driving device | |
EP0130337A3 (en) | Optical measurement apparatus | |
JPS5766537A (en) | Magnetooptic recording and reproducing device | |
EP0190922A3 (en) | Apparatus and method for determining the orientation of axes of birefringence in an optical fiber | |
JPS558006A (en) | Semi-conductor laser output stabilizing method and device therefore | |
SU593241A1 (en) | Magnetic head working gap testing device | |
JPS6489054A (en) | Magneto-optical device | |
GB1454675A (en) | Optical system for objective refractor for the eye | |
JPS63107177A (en) | Device for detecting wavelength of laser beam | |
SE8204047L (en) | OPTICAL DEVICE FOR ELECTROOPTIC OBJECTORS | |
EP0295682A3 (en) | Wavelength selective optical recording and reproducing device | |
JPS53129604A (en) | Optical recorder-reproducer | |
SU1554017A1 (en) | Device for setting and checking position of video heads in video tape recorder | |
SU1290098A1 (en) | Temperature signalling device |