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    Ionization gauge
    151.
    发明授权
    Ionization gauge 失效
    电离计

    公开(公告)号：US3891882A

    公开(公告)日：1975-06-24

    申请号：US43059874

    申请日：1974-01-03

    Applicant: BARRACO ANTHONY J

    Inventor： BARRACO ANTHONY J

    IPC: H01J41/04 ,  H01J7/16

    CPC classification number: H01J41/04

    Abstract: Presented is a vacuum pressure ionization gauge of the thermionic type which operates in the medium to high pressure range of the vacuum spectrum. It utilizes the principal of gas ionization by means of bombarding gas molecules by electrons emitted by a heated filament. The positive ions produced are collected to provide a positive ion current which provides a measure of the pressure.

    Abstract translation: 提出了在真空光谱的中至高压范围内工作的热离子型真空压力电离计。 它利用气体电离的原理，通过由加热的灯丝发射的电子轰击气体分子。 收集产生的正离子以提供正离子电流，其提供压力的量度。

    Method of measuring the rate of evaporation in a vacuum,a gauge for carrying this method into effect,and an application of this method
    152.
    发明授权
    Method of measuring the rate of evaporation in a vacuum,a gauge for carrying this method into effect,and an application of this method 失效
    在真空中测量蒸发速率的方法，用于将该方法用于效果的计量器以及该方法的应用

    公开(公告)号：US3586854A

    公开(公告)日：1971-06-22

    申请号：US3586854D

    申请日：1968-04-22

    Applicant: BATTELLE DEVELOPMENT CORP

    Inventor： ZEGA BOGDAN

    IPC: C23C14/54 ,  H01J41/04 ,  G01N9/24 ,  G01N23/12

    CPC classification number: H01J41/04 ,  C23C14/544

    Abstract: A method and apparatus for measuring the evaporation rate of substances which involves vaporizing the substance, generating a jet of the vapor in an evacuated enclosure, scanning through a cross section of the vapor jet with a beam of electrons, collecting the collision products generated during scanning, thereby giving rise to a current having a continuous component due to electrons colliding with the residual gas present in the enclosure and a periodic component due to electrons colliding with the vapor jet, and separating the continuous component from the periodic component, the amplitude of the latter being the measure of the numerical density of the vapor jet.

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