GB643689A - An improved electro-mechanical resonator - Google Patents
An improved electro-mechanical resonatorInfo
- Publication number
- GB643689A GB643689A GB442248A GB442248A GB643689A GB 643689 A GB643689 A GB 643689A GB 442248 A GB442248 A GB 442248A GB 442248 A GB442248 A GB 442248A GB 643689 A GB643689 A GB 643689A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bar
- vibration
- plates
- mechanical resonator
- improved electro
- 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
- 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
- H03H9/10—Mounting in enclosures
- H03H9/1007—Mounting in enclosures for bulk acoustic wave [BAW] devices
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Abstract
643,689. Electromechanical resonators, HOGBEN, R. S., and COOK, W. R. J. Feb. 16, 1948, No. 4422. [Class 40 (viii)] An electromechanical resonator comprises a metal bar a supported solely about a node of vibration by spaced pins b having points engaging in shaped and positioned recesses in the bar. Electrostatic transducers are arranged at each end of the bar comprising plates i opposed to the ends of the bar, one being connected to an output terminal, the other to an input terminal while the bar is connected to a common input and output terminals. The plates i may be grooved to increase air damping of the vibration of the bar. The apparatus may be enclosed in a gas-tight case h.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB442248A GB643689A (en) | 1948-02-16 | 1948-02-16 | An improved electro-mechanical resonator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB442248A GB643689A (en) | 1948-02-16 | 1948-02-16 | An improved electro-mechanical resonator |
Publications (1)
Publication Number | Publication Date |
---|---|
GB643689A true GB643689A (en) | 1950-09-27 |
Family
ID=9776887
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB442248A Expired GB643689A (en) | 1948-02-16 | 1948-02-16 | An improved electro-mechanical resonator |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB643689A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2803803A (en) * | 1957-08-20 | Electric |
-
1948
- 1948-02-16 GB GB442248A patent/GB643689A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2803803A (en) * | 1957-08-20 | Electric |
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