GB796490A - Improvements in or relating to apparatus for amplifying or measuring direct current (d.c.) voltages - Google Patents
Improvements in or relating to apparatus for amplifying or measuring direct current (d.c.) voltagesInfo
- Publication number
- GB796490A GB796490A GB3872357A GB3872357A GB796490A GB 796490 A GB796490 A GB 796490A GB 3872357 A GB3872357 A GB 3872357A GB 3872357 A GB3872357 A GB 3872357A GB 796490 A GB796490 A GB 796490A
- Authority
- GB
- United Kingdom
- Prior art keywords
- voltage
- amplitude
- anode
- circuit
- producing
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Particle Accelerators (AREA)
Abstract
796,490. Voltage measurement. EAST LANCASHIRE CHEMICAL CO., Ltd. Oct. 28, 1954 [Aug. 20, 1954], No. 38723/57. Divided out of 24236/54. Class 37. [Also in Groups XL (a) and XL (c)] Amplification or measurement of a small D.C. voltage is effected by subjecting the electron stream of a discharge tube to an oscillatory deflecting field, so producing in the anode circuit a carrier wave whose amplitude is modulated only by the said D.C. voltage. In the circuit shown, this voltage is applied to the control grid 12 of the tube 10. Anode 13 is connected to an H.T. source via a tuned circuit 17, 18. A coil 14, energized by an oscillator 16 of constant frequency and amplitude, provides the transverse magnetic field, thereby producing an A.C. in the anode circuit whose amplitude varies only with the D.C. voltage on grid 12. The output may have a further amplifying stage 19, and the amplitude is measured by a meter 20, which may be calibrated to read the modulating D.C. voltage directly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3872357A GB796490A (en) | 1954-08-20 | 1954-08-20 | Improvements in or relating to apparatus for amplifying or measuring direct current (d.c.) voltages |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3872357A GB796490A (en) | 1954-08-20 | 1954-08-20 | Improvements in or relating to apparatus for amplifying or measuring direct current (d.c.) voltages |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB796490A true GB796490A (en) | 1958-06-11 |
Family
ID=10405290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3872357A Expired GB796490A (en) | 1954-08-20 | 1954-08-20 | Improvements in or relating to apparatus for amplifying or measuring direct current (d.c.) voltages |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB796490A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1257278B (en) * | 1965-02-12 | 1967-12-28 | Licentia Gmbh | Probe for high voltage field measurement |
-
1954
- 1954-08-20 GB GB3872357A patent/GB796490A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1257278B (en) * | 1965-02-12 | 1967-12-28 | Licentia Gmbh | Probe for high voltage field measurement |
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