GB816122A - Improvements in electrical measuring instruments - Google Patents
Improvements in electrical measuring instrumentsInfo
- Publication number
- GB816122A GB816122A GB2716556A GB2716556A GB816122A GB 816122 A GB816122 A GB 816122A GB 2716556 A GB2716556 A GB 2716556A GB 2716556 A GB2716556 A GB 2716556A GB 816122 A GB816122 A GB 816122A
- Authority
- GB
- United Kingdom
- Prior art keywords
- cathode
- valve
- ray
- amplifier
- tube
- 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
- 238000005259 measurement Methods 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/20—Cathode-ray oscilloscopes
- G01R13/208—Arrangements for measuring with C.R. oscilloscopes, e.g. vectorscope
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Amplifiers (AREA)
Abstract
816,122. Cathode-ray oscilloscopes; cathode-ray tube operating circuits. MILLS, C. G. Dec. 3, 1957 [Sept. 5, 1956], No. 27165/56. Class 40 (7). A cathode-ray (C.R.) oscilloscope for voltage measurement comprises an input signal attenuator 5 whose output is fed to the control grid of amplifier valve V1which is cathode-coupled by the high-valve resistor 10 to amplifier valve V2, the pushpull circuit output being connected to the C.R. tube Y-plates; the gain of the amplifier increases with increasing supply voltage to give a constant deflection sensitivity. Wiper 8 of potentiometer P is set to give a standard deflection, in conjunction with attenuator wiper 7, and the input voltage value is read off associated dials. Control of Y-shift is afforded by the variation of the standing grid bias on valve V2 by potentiometer 6. The apparatus may be mounted between apertured front and rear plates united by stringers and with the C.R. tube inclined at 20 degrees to the horizontal.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB816122A true GB816122A (en) | 1959-07-08 |
Family
ID=1740435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2716556A Expired GB816122A (en) | 1956-09-05 | Improvements in electrical measuring instruments |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB816122A (en) |
-
1956
- 1956-09-05 GB GB2716556A patent/GB816122A/en not_active Expired
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