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    DETECTION OF GAS COMPONENTS
    4.
    发明专利
    DETECTION OF GAS COMPONENTS 未知

    公开(公告)号：GB1308598A

    公开(公告)日：1973-02-21

    申请号：GB1308598D

    申请日：1971-04-07

    Applicant: NII SINT SPIRTOV I ORCH PRO DU

    IPC: G01N27/62 ,  H01J39/08

    Abstract: 1308598 Ionization gas detectors NAUCHNOISSLEDOVATELSKY INSTITUT SINTETICHESKIKH SPIRTOV I ORGANICHESKIKH PRODUKTOV 7 April 1971 8929/71 Heading G1N [Also in Division H1] In an ionization gas detector, e.g. for use in chromatography, ionized gas particles are caused to oscillate between the electrodes 9, 10, without contacting the electrodes, so that, since each ionized particle performs several oscillations, the measured current is larger than the normal saturation current of the present device, and, since the electrodes may be completely insulated (insulator 7) corrosive substances may be reliably analysed. The amplitude A of oscillations is chosen to satisfy A # l/4 = #/4#f where l represents the electrode spacing, v represents the drift velocity of the ionized particles, and f represents the frequency of the applied electric field. However, when the electrodes are insulated, the amplitude may exceed 4 provide the ionized gas particles are caused to oscillate for at least a period T>l/2#. As shown, the gas fed, via conduit 4, is ionised by a hydrogen flame at 6, the electrode 9, is being connected to an alternating voltage source (not shown), and being insulated from the interelectrode space.

    High temperature ultraviolet radiation detector
    5.
    发明授权
    High temperature ultraviolet radiation detector 失效
    高温超紫外线检测器

    公开(公告)号：US3767955A

    公开(公告)日：1973-10-23

    申请号：US3767955D

    申请日：1972-06-29

    Applicant: HONEYWELL INC

    Inventor： JOHNSON R

    IPC: H01J40/18 ,  G01J1/02 ,  H01J17/20 ,  H01J47/08 ,  H01J39/08

    CPC classification number: H01J47/08

    Abstract: An ultraviolet sensitive, gaseous discharge detector of the Geiger-Muller type has a low spurious count rate and a prolonged lifetime at elevated temperatures. The gas filling of the detector comprises a gas mixture of neon and argon with a small amount of hydrogen added. The gas mixture of neon and argon substantially determines the breakdown voltage and ionization efficiency characteristics of the gas filling. The essential function of the hydrogen is to rapidly de-excite argon metastable atoms which would otherwise cause excessive spurious discharge counts.

    Abstract translation: Geiger-Muller型的紫外线敏感的气体放电检测器具有较低的寄生计数率和在升高的温度下延长寿命。 检测器的气体填充包括添加少量氢的氖气和氩气的混合气体。 氖气和氩气的混合气体基本上决定了气体填充物的击穿电压和电离效率特性。 氢的基本功能是快速去激发亚稳态原子，否则会导致过多的杂散放电计数。

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