GB493253A - Improvements in or relating to electrical oscillation generators - Google Patents
Improvements in or relating to electrical oscillation generatorsInfo
- Publication number
- GB493253A GB493253A GB2669/38A GB266938A GB493253A GB 493253 A GB493253 A GB 493253A GB 2669/38 A GB2669/38 A GB 2669/38A GB 266938 A GB266938 A GB 266938A GB 493253 A GB493253 A GB 493253A
- Authority
- GB
- United Kingdom
- Prior art keywords
- reed
- pick
- drive
- jan
- quartz
- 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
- 230000010355 oscillation Effects 0.000 title 1
- 235000014676 Phragmites communis Nutrition 0.000 abstract 4
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000010453 quartz Substances 0.000 abstract 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 abstract 1
- 229910052804 chromium Inorganic materials 0.000 abstract 1
- 239000011651 chromium Substances 0.000 abstract 1
- 238000003475 lamination Methods 0.000 abstract 1
- 229910001220 stainless steel Inorganic materials 0.000 abstract 1
- 239000010935 stainless steel Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
- H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
- H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
Landscapes
- Reciprocating Pumps (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
493,253. Inductances. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 27, 1938, No. 2669. Convention date, Jan. 28, 1937. [Class 38 (ii)] [Also in Group XL] A generating system comprises two amplifier valves and a vibrating reed arrangement which supplies alternating input to the two valves one of which feeds the reed driving coil through a limiter. The Figure shows the reed assembly. The polepieces of the drive and pick-up coils 11, 13 consist of extremely thin laminations and the reed 10 is extremely thin and tapered and may be of quartz or low chromium content stainless steel in the former case the drive is electrostatic, and if the surface is metal coated energy may be derived therefrom due to the normal piezoelectric reaction. Alternatively metal plates may be cemented to the quartz and electromagnetic drive and pick-up used. As shown a pair of pick-up coils 13 are employed and associated with a permanent magnet 14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US493253XA | 1937-01-28 | 1937-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB493253A true GB493253A (en) | 1938-10-05 |
Family
ID=21959213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2669/38A Expired GB493253A (en) | 1937-01-28 | 1938-01-27 | Improvements in or relating to electrical oscillation generators |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB493253A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1180800B (en) * | 1960-09-27 | 1964-11-05 | Siemens Ag | Electro-magnetically driven oscillating system that can be used as a frequency standard |
-
1938
- 1938-01-27 GB GB2669/38A patent/GB493253A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1180800B (en) * | 1960-09-27 | 1964-11-05 | Siemens Ag | Electro-magnetically driven oscillating system that can be used as a frequency standard |
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