GB793698A - Improvements in or relating to oscilloscopes - Google Patents
Improvements in or relating to oscilloscopesInfo
- Publication number
- GB793698A GB793698A GB3141154A GB3141154A GB793698A GB 793698 A GB793698 A GB 793698A GB 3141154 A GB3141154 A GB 3141154A GB 3141154 A GB3141154 A GB 3141154A GB 793698 A GB793698 A GB 793698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- displayed
- waveform
- timebase
- oct
- give
- 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
- G01R13/00—Arrangements for displaying electric variables or waveforms
- G01R13/20—Cathode-ray oscilloscopes
- G01R13/22—Circuits therefor
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Eye Examination Apparatus (AREA)
Abstract
793,698. Cathode-ray oscilloscopes. COLE, Ltd., E. K., and REEVES, R. J. D. Oct. 31, 1955 [Oct. 30, 1954], No. 31411/54. Class 40 (7). In a C.R.O. a timebase synchronized with the waveform A, Fig. 2, to be displayed is applied to the X deflection members and a sinusoidal voltage a of higher frequency from a freerunning oscillator 3, Fig. 1, is applied to the Y deflection members and to a coincidence circuit 4 together with the waveform A to give a pulse when the amplitudes of A and a are coincident which is applied to intensity modulate the beam of the C.R.T. 2 so that the waveform A is displayed as a succession of luminous dots C whose timing relative to the X timebase varies during successive sweeps thereof to give an apparently continuous luminous trace when a long persistence screen is employed. Additional coincidence circuits, e.g. 5, may be provided to display other waveforms, e.g. B, and the vertical separation of the displayed waveforms is controlled by adjusting the D.C. bias B1, B2 on the coincidence circuits. One of the displayed traces may comprise an adjustable cursor line. A suitable coincidence circuit and pulse generator is illustrated in Fig. 4 (not shown). Specification 639,233 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3141154A GB793698A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to oscilloscopes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3141154A GB793698A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to oscilloscopes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB793698A true GB793698A (en) | 1958-04-23 |
Family
ID=10322712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3141154A Expired GB793698A (en) | 1954-10-30 | 1954-10-30 | Improvements in or relating to oscilloscopes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB793698A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2075299A5 (en) * | 1970-01-08 | 1971-10-08 | Honeywell Inc |
-
1954
- 1954-10-30 GB GB3141154A patent/GB793698A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2075299A5 (en) * | 1970-01-08 | 1971-10-08 | Honeywell Inc |
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