CH225444A - Appareil à cristal piézoélectrique. - Google Patents
Appareil à cristal piézoélectrique.Info
- Publication number
- CH225444A CH225444A CH225444DA CH225444A CH 225444 A CH225444 A CH 225444A CH 225444D A CH225444D A CH 225444DA CH 225444 A CH225444 A CH 225444A
- Authority
- CH
- Switzerland
- Prior art keywords
- piezoelectric crystal
- crystal apparatus
- piezoelectric
- crystal
- Prior art date
Links
- 239000013078 crystal Substances 0.000 title 1
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
- H03H9/56—Monolithic crystal filters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02062—Details relating to the vibration mode
- H03H9/0207—Details relating to the vibration mode the vibration mode being harmonic
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/02007—Details of bulk acoustic wave devices
- H03H9/02157—Dimensional parameters, e.g. ratio between two dimension parameters, length, width or thickness
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/02—Details
- H03H9/05—Holders; Supports
- H03H9/09—Elastic or damping supports
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H9/00—Networks comprising electromechanical or electro-acoustic devices; Electromechanical resonators
- H03H9/15—Constructional features of resonators consisting of piezoelectric or electrostrictive material
- H03H9/17—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator
- H03H9/19—Constructional features of resonators consisting of piezoelectric or electrostrictive material having a single resonator consisting of quartz
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (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 |
---|---|---|---|
US278237A US2306909A (en) | 1939-06-09 | 1939-06-09 | Piezoelectric crystal apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
CH225444A true CH225444A (fr) | 1943-01-31 |
Family
ID=23064215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH225444D CH225444A (fr) | 1939-06-09 | 1940-06-19 | Appareil à cristal piézoélectrique. |
Country Status (3)
Country | Link |
---|---|
US (1) | US2306909A (fr) |
CH (1) | CH225444A (fr) |
FR (1) | FR866095A (fr) |
Families Citing this family (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574257A (en) * | 1947-01-11 | 1951-11-06 | Cambridge Thermionic Corp | Method for manufacturing piezoelectric crystals free of conflicting modes of vibration |
US2799789A (en) * | 1949-04-06 | 1957-07-16 | John M Wolfskill | Piezoelectric crystal apparatus and method of making the same |
US2771561A (en) * | 1952-03-17 | 1956-11-20 | Pye Ltd | Quartz crystal units |
US2886787A (en) * | 1953-07-30 | 1959-05-12 | Donald E Johnson | Piezoelectric device |
US2911484A (en) * | 1954-06-28 | 1959-11-03 | Gen Electric | Electro-acoustic transducer |
US3396327A (en) * | 1961-12-27 | 1968-08-06 | Toyotsushinki Kabushiki Kaisha | Thickness shear vibration type, crystal electromechanical filter |
GB1104383A (en) * | 1964-05-30 | 1968-02-28 | Matsushita Electric Ind Co Ltd | Piezoelectric ceramic resonator devices |
GB1401042A (en) * | 1972-05-30 | 1975-07-16 | Suisse Horlogerie | Quartz crystal resonator |
US3792294A (en) * | 1972-10-19 | 1974-02-12 | Bell Telephone Labor Inc | Rectangular at-cut crystal plate |
US4071797A (en) * | 1976-01-20 | 1978-01-31 | Societe Suisse Pour L'industrie Horlogere Management Services S.A. | Quartz piezo-electric element vibrating in a coupled mode |
DE2703335A1 (de) * | 1976-01-29 | 1977-08-04 | Seiko Instr & Electronics | Piezoelektrischer schwinger mit dickenscherungsschwingung |
JPS5291673A (en) * | 1976-01-29 | 1977-08-02 | Seiko Instr & Electronics Ltd | Thickness sliding vibrator |
DE2641571B1 (de) * | 1976-09-15 | 1977-06-08 | Siemens Ag | Als obertonquarz verwendeter dickenscherungsschwinger |
US4076987A (en) * | 1976-12-10 | 1978-02-28 | Societe Suisse Pour L'industrie Horlogere Management Services S.A. | Multiple resonator or filter vibrating in a coupled mode |
JPS5479581A (en) * | 1977-12-07 | 1979-06-25 | Seiko Instr & Electronics Ltd | Thickness-width slide crystal vibrator |
FR2426338A1 (fr) * | 1978-05-19 | 1979-12-14 | Seiko Instr & Electronics | Resonateur a quartz rectangulaire en coupe at |
JPS5530284A (en) * | 1978-08-25 | 1980-03-04 | Seiko Instr & Electronics Ltd | Thickness sliding flection crystal vibrator |
JPS5546633A (en) * | 1978-09-28 | 1980-04-01 | Seiko Instr & Electronics Ltd | Thickness-sliding inflection crystal vibrator |
JPS5912584Y2 (ja) * | 1979-09-11 | 1984-04-16 | 東京電波株式会社 | 水晶感温トランスジユ−サ |
US4604543A (en) * | 1984-11-29 | 1986-08-05 | Hitachi, Ltd. | Multi-element ultrasonic transducer |
US7077857B1 (en) | 2002-02-27 | 2006-07-18 | Crosby Advanced Medical Systems, Inc. | Pulse Cam |
US9987185B1 (en) | 2002-02-27 | 2018-06-05 | CAMS Medical Instruments, Inc. | Transducer devices, apparatus, systems and methods of operation |
US9463332B2 (en) | 2002-02-27 | 2016-10-11 | CAMS Medical Instruments, Inc. | Personal tuner with biosensor and bioscanner |
US7883534B1 (en) | 2002-02-27 | 2011-02-08 | CAMS Medical Instruments, Inc. | Personal tuner |
-
1939
- 1939-06-09 US US278237A patent/US2306909A/en not_active Expired - Lifetime
-
1940
- 1940-06-08 FR FR866095D patent/FR866095A/fr not_active Expired
- 1940-06-19 CH CH225444D patent/CH225444A/fr unknown
Also Published As
Publication number | Publication date |
---|---|
US2306909A (en) | 1942-12-29 |
FR866095A (fr) | 1941-06-16 |
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