ES298054A1 - Improvements in and relating to annular magnetic cores - Google Patents
Improvements in and relating to annular magnetic coresInfo
- Publication number
- ES298054A1 ES298054A1 ES0298054A ES298054A ES298054A1 ES 298054 A1 ES298054 A1 ES 298054A1 ES 0298054 A ES0298054 A ES 0298054A ES 298054 A ES298054 A ES 298054A ES 298054 A1 ES298054 A1 ES 298054A1
- Authority
- ES
- Spain
- Prior art keywords
- maximum
- annular magnetic
- instant
- per
- values
- Prior art date
- 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
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 229910003455 mixed metal oxide Inorganic materials 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
- 229910052697 platinum Inorganic materials 0.000 abstract 1
- PXXKQOPKNFECSZ-UHFFFAOYSA-N platinum rhodium Chemical compound [Rh].[Pt] PXXKQOPKNFECSZ-UHFFFAOYSA-N 0.000 abstract 1
- 238000005245 sintering Methods 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/26—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on ferrites
- C04B35/2608—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead
- C04B35/2616—Compositions containing one or more ferrites of the group comprising manganese, zinc, nickel, copper or cobalt and one or more ferrites of the group comprising rare earth metals, alkali metals, alkaline earth metals or lead containing lithium
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Soft Magnetic Materials (AREA)
- Magnetic Ceramics (AREA)
Abstract
An annular magnetic core has an outer diameter of not more than 4 mm., a value of uV1/dV z greater than 4À0 (measured with a disturbance ratio of 0À61), temperature coefficients for uV1 of not more than 0À8% per C. and for Tp of not more than 0À2% per C. (in the range 0 to 80 C.), a switching time of at most 1À5 Á secs. and has the composition where 0À007 < x < 0À054 3À9 < y < 4À1 The cores are made by pressing and sintering in air or air plus oxygen the mixed metal oxides or equivalent compounds on a platinum or platinum rhodium support. Examples are given with values of uV1/dV z up to 8À1. (uV1 and dV z are maximum values of undisturbed one signal and disturbed zero signal, respectively, and Tp is the time interval between the instant at which the control current reaches 10% of its maximum value and the instant at which the output voltage becomes a maximum. The control pulse rise time was 0À25 Á sec.)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL290933 | 1963-03-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES298054A1 true ES298054A1 (en) | 1964-06-01 |
Family
ID=19754576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0298054A Expired ES298054A1 (en) | 1963-03-29 | 1964-03-26 | Improvements in and relating to annular magnetic cores |
Country Status (10)
| Country | Link |
|---|---|
| AT (1) | AT245809B (en) |
| BE (1) | BE645865A (en) |
| CH (1) | CH457640A (en) |
| DE (1) | DE1471346A1 (en) |
| DK (1) | DK116804B (en) |
| ES (1) | ES298054A1 (en) |
| FR (1) | FR1390622A (en) |
| GB (1) | GB1018332A (en) |
| NL (1) | NL290933A (en) |
| OA (1) | OA00810A (en) |
-
0
- NL NL290933D patent/NL290933A/xx unknown
-
1964
- 1964-03-24 DE DE19641471346 patent/DE1471346A1/en active Pending
- 1964-03-25 DK DK154764AA patent/DK116804B/en unknown
- 1964-03-26 CH CH395464A patent/CH457640A/en unknown
- 1964-03-26 AT AT265764A patent/AT245809B/en active
- 1964-03-26 GB GB12846/64A patent/GB1018332A/en not_active Expired
- 1964-03-26 ES ES0298054A patent/ES298054A1/en not_active Expired
- 1964-03-27 FR FR969097A patent/FR1390622A/en not_active Expired
- 1964-03-27 BE BE645865D patent/BE645865A/xx unknown
- 1964-12-16 OA OA50877A patent/OA00810A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| BE645865A (en) | 1964-09-28 |
| DK116804B (en) | 1970-02-16 |
| AT245809B (en) | 1966-03-25 |
| CH457640A (en) | 1968-06-15 |
| FR1390622A (en) | 1965-02-26 |
| NL290933A (en) | |
| GB1018332A (en) | 1966-01-26 |
| DE1471346A1 (en) | 1969-03-27 |
| OA00810A (en) | 1967-11-15 |
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