GB252779A - Improvements relating to oscilloscopes - Google Patents

Improvements relating to oscilloscopes

Info

Publication number
GB252779A
GB252779A GB581325A GB581325A GB252779A GB 252779 A GB252779 A GB 252779A GB 581325 A GB581325 A GB 581325A GB 581325 A GB581325 A GB 581325A GB 252779 A GB252779 A GB 252779A
Authority
GB
United Kingdom
Prior art keywords
circuit
lamp
triode
anode
grid
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
GB581325A
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.)
Metropolitan Vickers Electrical Co Ltd
Original Assignee
Metropolitan Vickers Electrical Co Ltd
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 Metropolitan Vickers Electrical Co Ltd filed Critical Metropolitan Vickers Electrical Co Ltd
Priority to GB581325A priority Critical patent/GB252779A/en
Publication of GB252779A publication Critical patent/GB252779A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

252,779. Brown, W. J., Churcher, B. A. G., and Metropolitan-Vickers Electrical Co., Ltd. March 3, 1925. Stroboscopic apparatus for giving intermittent illumination of bodies having a periodic movement comprises an electric glow discharge or like rapidly quenching lamp and an oscillatory electrical circuit for energizing the lamp at any desired frequency without the necessity of any operative connection with the body or apparatus under examination. A glow discharge lamp 1 having a reflector 2 is connected across an oscillatory circuit 4 connected to the anode of a triode 7 and to a source of potential 8. The circuit also comprises a variable inductance 5 in parallel with a variable condenser 6. A reaction coil 9 is connected in the grid circuit of the triode 7 and coupled with the inductance 5. In a modification the lamp 1 is connected in the anode circuit of an amplifying value, the grid of which is connected to the anode of the triode 7. The lamp 1 may also be connected to a source of direct current through a relay actuated by the anode circuit. Frequency calibration of the triode circuit enables the apparatus to be used for speed measurements.
GB581325A 1925-03-03 1925-03-03 Improvements relating to oscilloscopes Expired GB252779A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB581325A GB252779A (en) 1925-03-03 1925-03-03 Improvements relating to oscilloscopes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB581325A GB252779A (en) 1925-03-03 1925-03-03 Improvements relating to oscilloscopes

Publications (1)

Publication Number Publication Date
GB252779A true GB252779A (en) 1926-06-03

Family

ID=9803080

Family Applications (1)

Application Number Title Priority Date Filing Date
GB581325A Expired GB252779A (en) 1925-03-03 1925-03-03 Improvements relating to oscilloscopes

Country Status (1)

Country Link
GB (1) GB252779A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2421182A (en) * 1943-10-29 1947-05-27 Robert T Bayne Stroboscope
US2426602A (en) * 1941-11-12 1947-09-02 Harold E Edgerton Electric system for producing intermittent or flashing light
US2700120A (en) * 1947-03-03 1955-01-18 Kenneth J Germeshausen Electric system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2426602A (en) * 1941-11-12 1947-09-02 Harold E Edgerton Electric system for producing intermittent or flashing light
US2421182A (en) * 1943-10-29 1947-05-27 Robert T Bayne Stroboscope
US2700120A (en) * 1947-03-03 1955-01-18 Kenneth J Germeshausen Electric system

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