GB970553A - Spectrochemical light sources - Google Patents

Spectrochemical light sources

Info

Publication number
GB970553A
GB970553A GB818662A GB818662A GB970553A GB 970553 A GB970553 A GB 970553A GB 818662 A GB818662 A GB 818662A GB 818662 A GB818662 A GB 818662A GB 970553 A GB970553 A GB 970553A
Authority
GB
United Kingdom
Prior art keywords
gap
discharge
capacitor
march
alternatively
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
GB818662A
Inventor
Antoni Szymczak
Michael Geoffrey Seed
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.)
Hilger and Watts Ltd
Original Assignee
Hilger and Watts 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 Hilger and Watts Ltd filed Critical Hilger and Watts Ltd
Priority to GB818662A priority Critical patent/GB970553A/en
Publication of GB970553A publication Critical patent/GB970553A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
    • G01N21/66—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence
    • G01N21/67—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light electrically excited, e.g. electroluminescence using electric arcs or discharges

Landscapes

  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Generation Of Surge Voltage And Current (AREA)
  • Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)

Abstract

970,553. Charging and discharging condensers. HILGER & WATTS Ltd. March 1, 1963 [March 2, 1962], No. 8186/62. Heading H2H. An analytical spark gap apparatus comprises a storage device, such as a capacitor C1, chargeable from an alternating current source over a rectifier MR1, the storage device C1 being discharged in an oscillatory manner by means including two asymmetrical switching devices V1, V2 connected in reverse parallel. The energy for the discharge across the analytical gap may be derived from a low voltage supply in which case the capacitor discharge is used to ionize the gap or alternatively the capacitor discharge itself may provide the gap discharge energy. The switching device V1 is of the triggered type such as a thyratron or a controlled semi-conductor rectifier and is triggered by a pulse generator PG whilst the device V2 may be a similar type or alternatively a semi-conductor diode (Fig. 3, not shown).
GB818662A 1962-03-02 1962-03-02 Spectrochemical light sources Expired GB970553A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB818662A GB970553A (en) 1962-03-02 1962-03-02 Spectrochemical light sources

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB818662A GB970553A (en) 1962-03-02 1962-03-02 Spectrochemical light sources

Publications (1)

Publication Number Publication Date
GB970553A true GB970553A (en) 1964-09-23

Family

ID=9847495

Family Applications (1)

Application Number Title Priority Date Filing Date
GB818662A Expired GB970553A (en) 1962-03-02 1962-03-02 Spectrochemical light sources

Country Status (1)

Country Link
GB (1) GB970553A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349284A (en) * 1965-02-25 1967-10-24 Eltra Corp Spark generating circuit having a voltage doubler and solid state control components
US3443185A (en) * 1965-08-03 1969-05-06 Richard Heim Circuitry and method of striking thyristors in inverse-parallel operation
FR2517430A1 (en) * 1981-12-02 1983-06-03 Kloeckner Werke Ag METHOD AND DEVICE FOR ANALYSIS BY EMISSION SPECTROMETRY OF METAL SAMPLES

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349284A (en) * 1965-02-25 1967-10-24 Eltra Corp Spark generating circuit having a voltage doubler and solid state control components
US3443185A (en) * 1965-08-03 1969-05-06 Richard Heim Circuitry and method of striking thyristors in inverse-parallel operation
FR2517430A1 (en) * 1981-12-02 1983-06-03 Kloeckner Werke Ag METHOD AND DEVICE FOR ANALYSIS BY EMISSION SPECTROMETRY OF METAL SAMPLES

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