ES322908A1 - Improvements in devices for stabilising the resonant frequency of cavities, as a function of the temperature - Google Patents
Improvements in devices for stabilising the resonant frequency of cavities, as a function of the temperatureInfo
- Publication number
- ES322908A1 ES322908A1 ES0322908A ES322908A ES322908A1 ES 322908 A1 ES322908 A1 ES 322908A1 ES 0322908 A ES0322908 A ES 0322908A ES 322908 A ES322908 A ES 322908A ES 322908 A1 ES322908 A1 ES 322908A1
- Authority
- ES
- Spain
- Prior art keywords
- piston
- temperature
- resonant frequency
- rod
- bellows
- 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
- H01—ELECTRIC ELEMENTS
- H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
- H01P7/00—Resonators of the waveguide type
- H01P7/06—Cavity resonators
Landscapes
- Fluid-Damping Devices (AREA)
- Control Of Motors That Do Not Use Commutators (AREA)
- Fats And Perfumes (AREA)
Abstract
A cavity resonator is compensated for changes in resonant frequency due to temperature variations by means of an independent piston supported upon members which are deformable under the influence of the temperature variations. As shown, a cavity 601 of the re-entrant type (part only shown) is tuned by axial movement of the re-entrant portion 602 which, for this purpose, is threaded into a radially compressible collar 609 carrying an internally bevelled lock-nut 616. A coaxial temperature-compensating piston 604 is carried upon a rod 607 screw-threaded into a guiding member 606 which slides axially within the tuning piston 602. The axial position of member 606, and hence of the piston 604, is determined by the length of three tubular temperature-responsive liquid-filled bellows 610 (two only shown) against which the member 606 is pressed by a spring 614. The end of the rod 607 is located by a flexible blade 671. Guiding member 606 is positively connected to the piston 602 by the bellows 610 so that rotation of the piston causes rotation of member 606 and axial movement of rod 607. Hence, the penetration of the piston 604 #e varies with the penetration a of the tuning piston 602. The resulting variation in compensation sensitivity with resonant frequency can be made to follow a given linear or other law by suitably choosing the pitches of screw threads 661, 631. In a modification, the bellows are replaced by stacks of arcuate bi-metallic elements (512, Fig. 5). In another embodiment the two pistons are manually and independently adjustable.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR5335A FR1433423A (en) | 1965-02-12 | 1965-02-12 | Improvements to methods of stabilizing the resonant frequency of cavities, as a function of temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES322908A1 true ES322908A1 (en) | 1966-07-16 |
Family
ID=8570815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0322908A Expired ES322908A1 (en) | 1965-02-12 | 1966-02-11 | Improvements in devices for stabilising the resonant frequency of cavities, as a function of the temperature |
Country Status (9)
| Country | Link |
|---|---|
| AT (1) | AT262384B (en) |
| BE (1) | BE676126A (en) |
| CH (1) | CH439422A (en) |
| DE (1) | DE1261198B (en) |
| ES (1) | ES322908A1 (en) |
| FR (1) | FR1433423A (en) |
| GB (1) | GB1125894A (en) |
| NL (1) | NL6601689A (en) |
| SE (1) | SE319538B (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2486129A (en) * | 1949-10-25 | Temperature compensating | ||
| FR1006613A (en) * | 1948-02-07 | 1952-04-25 | Onera (Off Nat Aerospatiale) | Improvements to devices such as cavities or resonant volumes |
-
0
- AT AT262384D patent/AT262384B/en active
-
1965
- 1965-02-12 FR FR5335A patent/FR1433423A/en not_active Expired
-
1966
- 1966-02-07 BE BE676126D patent/BE676126A/xx unknown
- 1966-02-07 GB GB534666A patent/GB1125894A/en not_active Expired
- 1966-02-09 DE DE1966C0038165 patent/DE1261198B/en active Pending
- 1966-02-10 SE SE1727/66A patent/SE319538B/xx unknown
- 1966-02-10 NL NL6601689A patent/NL6601689A/xx unknown
- 1966-02-11 ES ES0322908A patent/ES322908A1/en not_active Expired
- 1966-02-11 CH CH195766A patent/CH439422A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH439422A (en) | 1967-07-15 |
| SE319538B (en) | 1970-01-19 |
| AT262384B (en) | 1968-06-10 |
| BE676126A (en) | 1966-08-08 |
| FR1433423A (en) | 1966-04-01 |
| DE1261198B (en) | 1968-02-15 |
| GB1125894A (en) | 1968-09-05 |
| NL6601689A (en) | 1966-08-15 |
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