FR1058988A - Procédé de polarisation d'un transducteur en matière céramique - Google Patents
Procédé de polarisation d'un transducteur en matière céramiqueInfo
- Publication number
- FR1058988A FR1058988A FR1058988DA FR1058988A FR 1058988 A FR1058988 A FR 1058988A FR 1058988D A FR1058988D A FR 1058988DA FR 1058988 A FR1058988 A FR 1058988A
- Authority
- FR
- France
- Prior art keywords
- polarization
- ceramic transducer
- transducer
- ceramic
- 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
- 239000000919 ceramic Substances 0.000 title 1
- 230000010287 polarization Effects 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G7/00—Capacitors in which the capacitance is varied by non-mechanical means; Processes of their manufacture
- H01G7/02—Electrets, i.e. having a permanently-polarised dielectric
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/01—Manufacture or treatment
- H10N30/04—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning
- H10N30/045—Treatments to modify a piezoelectric or electrostrictive property, e.g. polarisation characteristics, vibration characteristics or mode tuning by polarising
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/42—Piezoelectric device making
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Compositions Of Oxide Ceramics (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US223389A US2646610A (en) | 1951-04-27 | 1951-04-27 | Method of polarizing ceramic transducers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1058988A true FR1058988A (fr) | 1954-03-22 |
Family
ID=22836285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1058988D Expired FR1058988A (fr) | 1951-04-27 | 1952-04-01 | Procédé de polarisation d'un transducteur en matière céramique |
Country Status (7)
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3071841A (en) * | 1957-02-16 | 1963-01-08 | Philips Corp | Method of longitudinally pre-polarizing bodies consisting of at least one layer of piezoelectric material |
| US3193912A (en) * | 1963-01-04 | 1965-07-13 | Lab De Rech S Physiques | Electro-static particle collecting device |
| US4734611A (en) * | 1985-12-20 | 1988-03-29 | Siemens Aktiengesellschaft | Ultrasonic sensor |
| US5668439A (en) * | 1995-10-03 | 1997-09-16 | Xerox Corporation | High voltage power supply |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2532100A (en) * | 1947-05-29 | 1950-11-28 | Indiana Steel Products Co | Electromagnetic transducer head |
| US2521329A (en) * | 1947-08-15 | 1950-09-05 | Brush Dev Co | Repolarized transducer system |
| NL81373C (US07122603-20061017-C00294.png) * | 1947-12-26 |
-
0
- NL NL86434D patent/NL86434C/xx active
- BE BE510981D patent/BE510981A/xx unknown
-
1951
- 1951-04-27 US US223389A patent/US2646610A/en not_active Expired - Lifetime
- 1951-10-17 GB GB24228/51A patent/GB688179A/en not_active Expired
-
1952
- 1952-04-01 FR FR1058988D patent/FR1058988A/fr not_active Expired
- 1952-04-23 DE DEN5425A patent/DE1000621B/de active Pending
- 1952-04-25 CH CH300405D patent/CH300405A/de unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH300405A (de) | 1954-07-31 |
| GB688179A (en) | 1953-02-25 |
| NL86434C (US07122603-20061017-C00294.png) | |
| DE1000621B (de) | 1957-01-10 |
| BE510981A (US07122603-20061017-C00294.png) | |
| US2646610A (en) | 1953-07-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1061537A (fr) | Procédé pour la production d'hydroxylamine | |
| FR1058988A (fr) | Procédé de polarisation d'un transducteur en matière céramique | |
| FR1064490A (fr) | Procédé pour la production d'hydroxylamine | |
| FR1064544A (fr) | Procédé pour la production d'hydroxylamine | |
| FR1040923A (fr) | Procédé de fabrication d'engrais phospho-azoté | |
| FR1048954A (fr) | Procédé d'hydroformation | |
| FR1036909A (fr) | Procédé d'isolation phonique | |
| SU98802A3 (ru) | Способ получени искусственных волокон | |
| FR1079946A (fr) | Procédé d'hydroformation | |
| FR1073425A (fr) | Procédé de production d'hydrazones d'aldéhydes hétérocycliques | |
| FR1047573A (fr) | Procédé pour la production d'acrylnitrile | |
| FR1071070A (fr) | Procédé d'hydroformation | |
| FR1071806A (fr) | Procédé de revêtement d'un moule | |
| FR1061723A (fr) | Procédé pour la production d'organo-oxypolysiloxanes | |
| FR1066064A (fr) | Procédé de photopolymérisation d'halogénoéthènes | |
| FR1032985A (fr) | Procédé d'encadrement moulé | |
| FR1046404A (fr) | Procédé pour la production d'hydrazones | |
| FR1067692A (fr) | Procédé pour la production d'oximes | |
| FR1050941A (fr) | Procédé pour la production de la 2-(p-amino-benzène-sulfonamido)-4-méthylpyrimidine | |
| FR1059091A (fr) | Procédé d'hydroformation d'hydrocarbures | |
| FR1052796A (fr) | Procédé d'hydroformation d'hydrocarbures | |
| FR1040255A (fr) | Procédé d'imperméabilisation | |
| FR1090435A (fr) | Procédé pour la production d'oximes | |
| FR1073423A (fr) | Procédé de production d'hydrazones acylées | |
| FR1072525A (fr) | Procédé de production d'alcoylène-urées |