FR903364A - Montage destiné à modifier la fréquence propre d'un circuit oscillant - Google Patents
Montage destiné à modifier la fréquence propre d'un circuit oscillantInfo
- Publication number
- FR903364A FR903364A FR903364DA FR903364A FR 903364 A FR903364 A FR 903364A FR 903364D A FR903364D A FR 903364DA FR 903364 A FR903364 A FR 903364A
- Authority
- FR
- France
- Prior art keywords
- modify
- natural frequency
- oscillating circuit
- assembly intended
- assembly
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F21/00—Variable inductances or transformers of the signal type
- H01F21/02—Variable inductances or transformers of the signal type continuously variable, e.g. variometers
- H01F21/08—Variable inductances or transformers of the signal type continuously variable, e.g. variometers by varying the permeability of the core, e.g. by varying magnetic bias
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03C—MODULATION
- H03C3/00—Angle modulation
- H03C3/10—Angle modulation by means of variable impedance
- H03C3/12—Angle modulation by means of variable impedance by means of a variable reactive element
- H03C3/18—Angle modulation by means of variable impedance by means of a variable reactive element the element being a current-dependent inductor
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J3/00—Continuous tuning
- H03J3/02—Details
- H03J3/16—Tuning without displacement of reactive element, e.g. by varying permeability
- H03J3/18—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance
- H03J3/185—Tuning without displacement of reactive element, e.g. by varying permeability by discharge tube or semiconductor device simulating variable reactance with varactors, i.e. voltage variable reactive diodes
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/14—Controlling the magnetic state of inductor cores
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL616932X | 1943-04-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR903364A true FR903364A (fr) | 1945-10-01 |
Family
ID=19788296
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR903364D Expired FR903364A (fr) | 1943-04-16 | 1944-04-14 | Montage destiné à modifier la fréquence propre d'un circuit oscillant |
Country Status (3)
Country | Link |
---|---|
FR (1) | FR903364A (fr) |
GB (1) | GB616932A (fr) |
NL (1) | NL65135C (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659868A (en) * | 1948-07-09 | 1953-11-17 | Ericsson Telefon Ab L M | Modulation by magnetic control of superconductors |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE973734C (de) * | 1952-05-02 | 1960-05-25 | Foxboro Co | Verstaerker fuer einen Fluessigkeitsmesser |
BE525856A (fr) * | 1953-01-22 | |||
DE965725C (de) * | 1953-10-10 | 1957-06-19 | Siemens Ag | Veraenderbare Induktivitaet mit grosser Variation des Induktivitaetswertes |
WO1985001387A1 (fr) * | 1983-09-19 | 1985-03-28 | American Telephone & Telegraph Company | Assemblage de bobine d'arret en ferrite |
-
0
- NL NL65135D patent/NL65135C/xx active
-
1944
- 1944-04-14 FR FR903364D patent/FR903364A/fr not_active Expired
-
1946
- 1946-09-23 GB GB28438/46A patent/GB616932A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2659868A (en) * | 1948-07-09 | 1953-11-17 | Ericsson Telefon Ab L M | Modulation by magnetic control of superconductors |
Also Published As
Publication number | Publication date |
---|---|
NL65135C (fr) | 1900-01-01 |
GB616932A (en) | 1949-01-28 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR904095A (fr) | Montage destiné à faire varier la fréquence propre d'un circuit oscillant à l'aide d'une réactance variable | |
FR903364A (fr) | Montage destiné à modifier la fréquence propre d'un circuit oscillant | |
FR925231A (fr) | Montage modulateur d'oscillations électriques | |
FR923062A (fr) | Montage amplificateur d'oscillations électriques | |
FR903247A (fr) | Circuit générateur d'oscillations électriques à haute fréquence | |
FR902171A (fr) | Montage destiné à moduler en fréquence ou en phase des oscillations électriques | |
FR899541A (fr) | Montage destiné à modifier l'accord d'un circuit oscillateur | |
FR905803A (fr) | Montage électrique destiné à la modulation d'oscillations électriques | |
FR981278A (fr) | Organe d'assemblage | |
FR906839A (fr) | Montage destiné à la transmission d'oscillations électriques | |
FR981506A (fr) | Montage d'oscillateur | |
FR901750A (fr) | Montage destiné à la transmission d'oscillations électriques de fréquence élevée | |
FR904096A (fr) | Montage destiné à l'expansion d'oscillations électriques | |
FR902788A (fr) | Montage à circuit oscillant | |
FR878415A (fr) | Montage électrique destiné à la transmission d'oscillations électriques à haute fréquence | |
FR904893A (fr) | Assemblage d'appareils électriques | |
FR987977A (fr) | Perfectionnements à la réception d'oscillations électriques modulées en fréquence | |
FR901660A (fr) | Repérage de la phase d'une oscillation | |
FR902590A (fr) | Montage destiné à la transmission d'oscillations électriques à ultrahaute fréquence | |
FR902073A (fr) | Montage destiné à moduler en fréquence ou en phase des oscillations électriques | |
FR982527A (fr) | Projecteurs d'électrons | |
FR54646E (fr) | Montage amplificateur d'oscillations électriques | |
FR898221A (fr) | Montage destiné à la modulation en fréquence d'oscillations électriques | |
FR901450A (fr) | Montage oscillateur | |
FR901451A (fr) | Montage destiné à la transmission d'oscillations électriques à très haute fréquence |