BE468392A - - Google Patents
Info
- Publication number
- BE468392A BE468392A BE468392DA BE468392A BE 468392 A BE468392 A BE 468392A BE 468392D A BE468392D A BE 468392DA BE 468392 A BE468392 A BE 468392A
- Authority
- BE
- Belgium
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/46—Filters
- H03H9/54—Filters comprising resonators of piezoelectric or electrostrictive material
- H03H9/58—Multiple crystal filters
- H03H9/582—Multiple crystal filters implemented with thin-film techniques
- H03H9/583—Multiple crystal filters implemented with thin-film techniques comprising a plurality of piezoelectric layers acoustically coupled
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US477915A US2410825A (en) | 1943-03-04 | 1943-03-04 | Piezoelectric crystal apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
BE468392A true BE468392A (ko) |
Family
ID=23897845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE468392D BE468392A (ko) | 1943-03-04 |
Country Status (5)
Country | Link |
---|---|
US (1) | US2410825A (ko) |
BE (1) | BE468392A (ko) |
FR (1) | FR940632A (ko) |
GB (1) | GB578791A (ko) |
NL (1) | NL65892C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458176A1 (fr) * | 1979-05-29 | 1980-12-26 | Onera (Off Nat Aerospatiale) | Combinaison de resonateurs piezo-electriques |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR861808A (fr) * | 1939-08-02 | 1941-02-18 | Materiel Telephonique | éléments piezo-électriques |
US2875354A (en) * | 1954-01-29 | 1959-02-24 | Branson Instr | Piezoelectric transducer |
DE1108275B (de) * | 1955-09-28 | 1961-06-08 | Gen Electric | Piezoelektrischer Verbundkoerper |
US2978597A (en) * | 1956-03-14 | 1961-04-04 | Harris Transducer Corp | Circuit element transducer |
US2984111A (en) * | 1959-06-19 | 1961-05-16 | Bosch Arma Corp | Accelerometer |
US3091707A (en) * | 1960-04-07 | 1963-05-28 | Bell Telephone Labor Inc | Piezoelectric devices utilizing zinc oxide |
US3093758A (en) * | 1960-04-13 | 1963-06-11 | Bell Telephone Labor Inc | Piezoelectric devices utilizing cadmium sulfide |
US3090876A (en) * | 1960-04-13 | 1963-05-21 | Bell Telephone Labor Inc | Piezoelectric devices utilizing aluminum nitride |
US3234488A (en) * | 1960-09-12 | 1966-02-08 | Bell Telephone Labor Inc | Light modulable circuit element |
DE1209336B (de) * | 1960-12-01 | 1966-01-20 | Bosch Arma Corp | Als randfreie Kreisscheibe ausgebildeter Biegeschwingungswandler zur Erzeugung von Schallschwingungen |
US3408515A (en) * | 1964-10-08 | 1968-10-29 | Bell Telephone Labor Inc | Second overtone dt-cut quartz resonator |
FR2125759A5 (ko) * | 1971-02-19 | 1972-09-29 | Cepe | |
FR2127184A5 (ko) * | 1971-02-26 | 1972-10-13 | Cepe | |
US3721841A (en) * | 1971-06-16 | 1973-03-20 | Motorola Inc | Contact for piezoelectric crystals |
US4344010A (en) * | 1979-10-19 | 1982-08-10 | The United States Of America As Represented By The Secretary Of The Army | Acceleration resistant combination of opposite-handed piezoelectric crystals |
US4365182A (en) * | 1980-10-14 | 1982-12-21 | The United States Of America As Represented By The Secretary Of The Army | Method of fabricating acceleration resistant crystal resonators and acceleration resistant crystal resonators so formed |
US4649525A (en) * | 1981-12-08 | 1987-03-10 | Mobil Oil Corporation | Shear wave acoustic logging system |
US4410822A (en) * | 1982-06-17 | 1983-10-18 | The United States Of America As Represented By The Secretary Of The Army | Acceleration-resistant crystal resonator |
AT389170B (de) * | 1987-11-19 | 1989-10-25 | Avl Verbrennungskraft Messtech | Piezoelektrisches messelement |
US5430342A (en) * | 1993-04-27 | 1995-07-04 | Watson Industries, Inc. | Single bar type vibrating element angular rate sensor system |
KR100287481B1 (ko) * | 1997-05-28 | 2001-08-07 | 무라타 야스타카 | 진동자이로스코프 |
JP2001036376A (ja) * | 1999-07-23 | 2001-02-09 | Murata Mfg Co Ltd | 圧電共振子及び圧電部品 |
US7548012B2 (en) * | 2003-09-17 | 2009-06-16 | Kistler Holding, Ag | Multi-layer piezoelectric measuring element, and pressure sensor or force sensor comprising such a measuring element |
US8188800B2 (en) | 2008-11-07 | 2012-05-29 | Greenray Industries, Inc. | Crystal oscillator with reduced acceleration sensitivity |
US8446078B2 (en) * | 2009-03-26 | 2013-05-21 | Sand 9, Inc. | Mechanical resonating structures and methods |
US9299910B1 (en) | 2012-05-17 | 2016-03-29 | Analog Devices, Inc. | Resonator anchors and related apparatus and methods |
US9954513B1 (en) | 2012-12-21 | 2018-04-24 | Analog Devices, Inc. | Methods and apparatus for anchoring resonators |
US9634227B1 (en) | 2013-03-06 | 2017-04-25 | Analog Devices, Inc. | Suppression of spurious modes of vibration for resonators and related apparatus and methods |
-
0
- BE BE468392D patent/BE468392A/xx unknown
- NL NL65892D patent/NL65892C/xx active
-
1943
- 1943-03-04 US US477915A patent/US2410825A/en not_active Expired - Lifetime
-
1944
- 1944-06-13 GB GB11331/44A patent/GB578791A/en not_active Expired
-
1946
- 1946-08-27 FR FR940632D patent/FR940632A/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2458176A1 (fr) * | 1979-05-29 | 1980-12-26 | Onera (Off Nat Aerospatiale) | Combinaison de resonateurs piezo-electriques |
Also Published As
Publication number | Publication date |
---|---|
US2410825A (en) | 1946-11-12 |
FR940632A (fr) | 1948-12-17 |
GB578791A (en) | 1946-07-11 |
NL65892C (ko) |