JPS547205B2 - - Google Patents
Info
- Publication number
- JPS547205B2 JPS547205B2 JP8228871A JP8228871A JPS547205B2 JP S547205 B2 JPS547205 B2 JP S547205B2 JP 8228871 A JP8228871 A JP 8228871A JP 8228871 A JP8228871 A JP 8228871A JP S547205 B2 JPS547205 B2 JP S547205B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/025—Compensating stray fields
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/02—Measuring direction or magnitude of magnetic fields or magnetic flux
- G01R33/04—Measuring direction or magnitude of magnetic fields or magnetic flux using the flux-gate principle
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Measuring Magnetic Variables (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8228871A JPS547205B2 (ja) | 1971-10-18 | 1971-10-18 | |
| US00298008A US3789234A (en) | 1971-10-18 | 1972-10-16 | Magnetic sensor using a parametrically excited second harmonic oscillator |
| DE2251110A DE2251110C3 (de) | 1971-10-18 | 1972-10-18 | Magnetischer Fühler mit einem parametrisch erregten zweiten harmonischen Oszillator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8228871A JPS547205B2 (ja) | 1971-10-18 | 1971-10-18 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS4847812A JPS4847812A (ja) | 1973-07-06 |
| JPS547205B2 true JPS547205B2 (ja) | 1979-04-05 |
Family
ID=13770325
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8228871A Expired JPS547205B2 (ja) | 1971-10-18 | 1971-10-18 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3789234A (ja) |
| JP (1) | JPS547205B2 (ja) |
| DE (1) | DE2251110C3 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9721603B2 (en) | 2015-09-25 | 2017-08-01 | Seagate Technology Llc | Head-medium contact detection using an oscillating electromagnetic force |
| US9607642B1 (en) | 2016-01-27 | 2017-03-28 | Seagate Technology Llc | Head-medium contact detection using a thermal sensor and surface charge control of a slider |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB840657A (en) * | 1956-09-07 | 1960-07-06 | Nippon Telegraph & Telephone | A switching system for electrical signals |
| US3432681A (en) * | 1963-03-11 | 1969-03-11 | Kokusai Denshin Denwa Co Ltd | Oscillation circuits controlled with ferromagnetic thin films |
| US3399309A (en) * | 1963-11-12 | 1968-08-27 | Sperry Rand Corp | Parametric circuits |
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1971
- 1971-10-18 JP JP8228871A patent/JPS547205B2/ja not_active Expired
-
1972
- 1972-10-16 US US00298008A patent/US3789234A/en not_active Expired - Lifetime
- 1972-10-18 DE DE2251110A patent/DE2251110C3/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3789234A (en) | 1974-01-29 |
| DE2251110A1 (de) | 1973-04-26 |
| DE2251110B2 (de) | 1974-02-14 |
| JPS4847812A (ja) | 1973-07-06 |
| DE2251110C3 (de) | 1974-09-19 |