GB739981A - Improvements relating to the stabilization of electron discharge devices - Google Patents

Improvements relating to the stabilization of electron discharge devices

Info

Publication number
GB739981A
GB739981A GB11368/54A GB1136854A GB739981A GB 739981 A GB739981 A GB 739981A GB 11368/54 A GB11368/54 A GB 11368/54A GB 1136854 A GB1136854 A GB 1136854A GB 739981 A GB739981 A GB 739981A
Authority
GB
United Kingdom
Prior art keywords
valve
potential
grid
current
stabilization
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
Application number
GB11368/54A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
General Electric Co
Original Assignee
General Electric Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by General Electric Co filed Critical General Electric Co
Publication of GB739981A publication Critical patent/GB739981A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/32—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices
    • G05F1/34—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using magnetic devices having a controllable degree of saturation as final control devices combined with discharge tubes or semiconductor devices
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/34—Anode current, heater current or heater voltage of X-ray tube

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

739,981. Automatic control systems. GENERAL ELECTRIC CO. April 20, 1954 [April 20, 1953], No. 11368/54. Class 38 (4). The anode-cathode current of a thermionic discharge device such as an X-ray tube 11 is stabilized by applying the potential across an impedance 18, in the anode-cathode circuit, to a valve 19, while a valve 20 is fed with a reference potential from potentiometer 22, there being a diode 24 connecting the inputs to the valves 19, 20, and the potential developed in the load circuit 25, 26 being applied to a variable impedance, e.g. a saturable reactor 28, to vary the heating current to the filament of the device 11. The X-ray tube 11 is fed with A.C., so that pulses are supplied to valve 19; the diode 24 maintains the grid of valve 19 at least at the same potential as the grid of valve 20, but allows the grid of valve 19 to rise to a higher potential when the tube 11 passes a higher current, thus developing an output current in the reactor winding 27.
GB11368/54A 1953-04-20 1954-04-20 Improvements relating to the stabilization of electron discharge devices Expired GB739981A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US349762A US2810838A (en) 1953-04-20 1953-04-20 Beam current stabilization circuit for x-ray tubes

Publications (1)

Publication Number Publication Date
GB739981A true GB739981A (en) 1955-11-02

Family

ID=23373849

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11368/54A Expired GB739981A (en) 1953-04-20 1954-04-20 Improvements relating to the stabilization of electron discharge devices

Country Status (3)

Country Link
US (1) US2810838A (en)
FR (1) FR1098445A (en)
GB (1) GB739981A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2127187A5 (en) * 1971-02-26 1972-10-13 Radiologie Cie Gle

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3086142A (en) * 1957-11-12 1963-04-16 Burke John Donald Final anode supply systems for cathode-ray tubes
US2940010A (en) * 1959-05-18 1960-06-07 Gen Precision Inc Automatic control circuit
US3183357A (en) * 1962-10-22 1965-05-11 Weston Instruments Inc Automatically adjustable power supply for x-ray tubes
DE1439482A1 (en) * 1964-12-03 1969-04-24 Siemens Ag Arrangement for the separate regulation of the pipe flows of several Roentgen pipes
US3521067A (en) * 1968-04-15 1970-07-21 Picker Corp X-ray tube current stabilization
US3766391A (en) * 1972-04-24 1973-10-16 Cgr Medical Corp Rms current regulator for an x-ray tube
US4039811A (en) * 1975-03-21 1977-08-02 Sybron Corporation Method of operating and power supply for x-ray tubes
US4101775A (en) * 1977-03-17 1978-07-18 Sybron Corporation X-ray tube current stabilizing circuit
GB2178203A (en) * 1985-07-26 1987-02-04 Radiation Dynamics Regulating electron beam emission

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1683194A (en) * 1927-03-24 1928-09-04 Gen Electric Regulating system for thermionic devices
US2236195A (en) * 1938-12-15 1941-03-25 Rca Corp Automatic cathode voltage adjusting device
US2467347A (en) * 1947-02-06 1949-04-12 Bell Telephone Labor Inc Regulated current supply apparatus
US2503075A (en) * 1947-02-15 1950-04-04 Gen Electric X-ray tube energizing circuit
US2492304A (en) * 1948-05-08 1949-12-27 Westinghouse Electric Corp Tandem x-ray tube stabilizer
US2651963A (en) * 1951-04-26 1953-09-15 Gen Electric Radiation beam pattern recorder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2127187A5 (en) * 1971-02-26 1972-10-13 Radiologie Cie Gle

Also Published As

Publication number Publication date
US2810838A (en) 1957-10-22
FR1098445A (en) 1955-07-26

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