GB344315A - Improvements in and relating to cathode beam oscillographs - Google Patents
Improvements in and relating to cathode beam oscillographsInfo
- Publication number
- GB344315A GB344315A GB19058/30A GB1905830A GB344315A GB 344315 A GB344315 A GB 344315A GB 19058/30 A GB19058/30 A GB 19058/30A GB 1905830 A GB1905830 A GB 1905830A GB 344315 A GB344315 A GB 344315A
- Authority
- GB
- United Kingdom
- Prior art keywords
- target
- plates
- resistance
- cathode
- oscillograph
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J31/00—Cathode ray tubes; Electron beam tubes
- H01J31/08—Cathode ray tubes; Electron beam tubes having a screen on or from which an image or pattern is formed, picked up, converted, or stored
- H01J31/10—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes
- H01J31/12—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen
- H01J31/121—Image or pattern display tubes, i.e. having electrical input and optical output; Flying-spot tubes for scanning purposes with luminescent screen tubes for oscillography
Landscapes
- Manufacture Of Electron Tubes, Discharge Lamp Vessels, Lead-In Wires, And The Like (AREA)
- Particle Accelerators (AREA)
- Electron Sources, Ion Sources (AREA)
Abstract
344,315. Oscillographs. ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Bush House, Aldwych, London.-(Assignees of Ackerman, O.; 470, Ella Street, Wilkinsburg, Pennsylvania, U.S.A.) June 23, 1930, No. 19058. Convention date, June 22, 1929. [Class 37.] In order to excite the timing plates of a cathode beam oscillograph, a condenser is normally maintained charged by a stream of electrons impinging on a target, and is allowed to discharge through a resistance when the electron stream is deflected away from the target. As shown in Fig. 1, an evacuated glass vessel 1 contains a heated cathode 2, an anode 4, deflecting plates 10, a metal screen 8, and a target 7, the anode 4 and screen 8 having central holes in alignment with the cathode and target. The anode 4, screen 8, and one of the plates 10 are connected to earth, the other plate 10 being connected to a point on a series of condensers 13 connected between a hightension line 14 and earth, and forming a potential divider. The target 7 is connected to earth through a resistance 15 across which are connected the electro-static timing plates 16 of the oscillograph. If the capacity of these plates is insufficient, a condenser 17 is connected in parallel therewith. When there is only a normal voltage on the line 14, the beam of electrons is directed on to the target 7, causing a current through the resistance 15 the potential across which maintains the plates 16 and condenser 17 charged. On the occurrence of a surge or unusually high voltage on the line 14, the electron beam is deflected off the target 7 and against the screen 8, thereby interrupting the current through the resistance 15 and allowing the plates 16 and condenser 17 to discharge through the resistance 15 at a known rate, thereby imparting a known timing movement to the electron beam of the cathode ray oscillograph. In a modification the apparatus is combined with a cathode ray oscillograph of the kind described in Specification 295,321, [Class 37, Electricity, Measuring &c.], so that a single cathode beam serves as the oscillograph beam and for initiating the timing movement.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US373043A US1768875A (en) | 1929-06-22 | 1929-06-22 | Cathode-ray oscillograph |
Publications (1)
Publication Number | Publication Date |
---|---|
GB344315A true GB344315A (en) | 1931-03-05 |
Family
ID=23470676
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB19058/30A Expired GB344315A (en) | 1929-06-22 | 1930-06-23 | Improvements in and relating to cathode beam oscillographs |
Country Status (2)
Country | Link |
---|---|
US (1) | US1768875A (en) |
GB (1) | GB344315A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2982917A (en) * | 1958-04-10 | 1961-05-02 | Aaland Kris | Method and apparatus for pulsing a charged particle beam |
-
1929
- 1929-06-22 US US373043A patent/US1768875A/en not_active Expired - Lifetime
-
1930
- 1930-06-23 GB GB19058/30A patent/GB344315A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US1768875A (en) | 1930-07-01 |
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