GB916337A - Improvements in or relating to vibrating capacitors - Google Patents
Improvements in or relating to vibrating capacitorsInfo
- Publication number
- GB916337A GB916337A GB735959A GB735959A GB916337A GB 916337 A GB916337 A GB 916337A GB 735959 A GB735959 A GB 735959A GB 735959 A GB735959 A GB 735959A GB 916337 A GB916337 A GB 916337A
- Authority
- GB
- United Kingdom
- Prior art keywords
- amplitude
- vibration
- electrode
- vibrating
- valve
- 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
- 239000003990 capacitor Substances 0.000 title abstract 3
- 230000010355 oscillation Effects 0.000 abstract 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M7/00—Conversion of ac power input into dc power output; Conversion of dc power input into ac power output
- H02M7/42—Conversion of dc power input into ac power output without possibility of reversal
- H02M7/54—Conversion of dc power input into ac power output without possibility of reversal by dynamic converters
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03F—AMPLIFIERS
- H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
- H03F3/38—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers
- H03F3/40—DC amplifiers with modulator at input and demodulator at output; Modulators or demodulators specially adapted for use in such amplifiers with tubes only
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
Abstract
916,337. Automatic oscillation amplitude control. NATONEK, L. March 3, 1959 [Aug. 27, 1958], No. 7359/59. Class 38 (4). [Also in Group XXXVI] The frequency of mechanical vibration of the electrode 24 of a vibrating capacitor 24, 25, Fig. 4, is determined by an A.C. source 29 in the control grid circuit of a valve 30, the output of which energizes the vibrator magnet 1. The amplitude of vibration is maintained constant by applying a constant voltage source 28 over a high resistor 27 across electrode 24 and an auxiliary fixed electrode 26, the consequential voltage changes across these electrodes, which are proportional in amplitude to the mechanical amplitude of vibration, being amplified at 31, rectified at 32, and applied negatively as a regulating voltage in series with the source 29 to valve 30. In another embodiment, Fig. 5, the electrode 24 vibrates at its natural frequency and is maintained in oscillation by positive feed-back of the voltage changes across the electrodes 24, 26. The amplitude of oscillation will increase from zero to a constant value where the linear characteristic relating available vibrating energy to amplitude intersects the non-linear characteristic relating energy required for the vibration to amplitude. The vibrating capacitor 24, 25 may be used, for example, for D.C. to A.C. conversion in a valve voltmeter.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| HUNA000545 | 1958-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB916337A true GB916337A (en) | 1963-01-23 |
Family
ID=10999784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB735959A Expired GB916337A (en) | 1958-08-27 | 1959-03-03 | Improvements in or relating to vibrating capacitors |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH372749A (en) |
| DE (1) | DE1141336B (en) |
| GB (1) | GB916337A (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2372062A (en) * | 1941-01-06 | 1945-03-20 | Dorsman Cornelis | Device for measuring low direct voltages |
| DE876567C (en) * | 1941-01-06 | 1953-05-15 | Philips Nv | Device for measuring small DC voltages |
| CH235854A (en) * | 1942-12-22 | 1944-12-31 | Loewe Opta Gmbh | Electromagnetically adjustable regulating capacitor. |
| US2483981A (en) * | 1946-09-20 | 1949-10-04 | Atomic Energy Commission | Dynamic condenser |
| US2632791A (en) * | 1949-11-30 | 1953-03-24 | Honeywell Regulator Co | Vibratory condenser converter |
| GB681214A (en) * | 1950-04-05 | 1952-10-22 | Cole E K Ltd | Improvements in or relating to apparatus for measuring small currents or voltages |
| BE530122A (en) * | 1953-08-07 | |||
| FR1117760A (en) * | 1953-12-22 | 1956-05-28 | Electronic Instr Ltd | Device comprising an electric capacitor with periodically variable capacitance |
| US2830240A (en) * | 1954-09-23 | 1958-04-08 | Hoffman Electronics Corp | Electromagnetically controlled capacitors or the like |
-
1959
- 1959-01-02 CH CH6801459A patent/CH372749A/en unknown
- 1959-01-05 DE DEN16079A patent/DE1141336B/en active Pending
- 1959-03-03 GB GB735959A patent/GB916337A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CH372749A (en) | 1963-10-31 |
| DE1141336B (en) | 1962-12-20 |
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