ES172693A1 - Un montaje de frecuencia variable de un cristal piezoeléctrico - Google Patents
Un montaje de frecuencia variable de un cristal piezoeléctricoInfo
- Publication number
- ES172693A1 ES172693A1 ES172693A ES172693A ES172693A1 ES 172693 A1 ES172693 A1 ES 172693A1 ES 172693 A ES172693 A ES 172693A ES 172693 A ES172693 A ES 172693A ES 172693 A1 ES172693 A1 ES 172693A1
- Authority
- ES
- Spain
- Prior art keywords
- variable frequency
- frequency assembly
- piezoelectric glass
- piezoelectric
- glass
- 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
- 239000011521 glass Substances 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H3/00—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators
- H03H3/007—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks
- H03H3/02—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks
- H03H3/04—Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators for the manufacture of electromechanical resonators or networks for the manufacture of piezoelectric or electrostrictive resonators or networks for obtaining desired frequency or temperature coefficient
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
- H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
- H03B5/34—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator active element in amplifier being vacuum tube
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR992526T | 1944-06-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES172693A1 true ES172693A1 (es) | 1946-04-01 |
Family
ID=9554868
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES172693A Expired ES172693A1 (es) | 1944-06-28 | 1946-02-26 | Un montaje de frecuencia variable de un cristal piezoeléctrico |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE459654A (is") |
| ES (1) | ES172693A1 (is") |
| FR (1) | FR992526A (is") |
| LU (1) | LU27897A1 (is") |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0706835B1 (en) * | 1994-10-10 | 1999-01-20 | Endress + Hauser GmbH + Co. | Method of operating an ultrasonic piezoelectric transducer and circuit arrangement for performing the method |
-
1944
- 1944-06-28 FR FR992526D patent/FR992526A/fr not_active Expired
-
1945
- 1945-08-11 BE BE459654D patent/BE459654A/xx unknown
-
1946
- 1946-02-13 LU LU27897D patent/LU27897A1/fr unknown
- 1946-02-26 ES ES172693A patent/ES172693A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| LU27897A1 (is") | 1946-04-11 |
| FR992526A (fr) | 1951-10-19 |
| BE459654A (is") | 1945-09-29 |
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