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    Magnetic bridge-type meter for magnetically permeable particulate matter
    1.
    发明授权
    Magnetic bridge-type meter for magnetically permeable particulate matter 失效
    用于磁导率颗粒物的磁桥式表

    公开(公告)号：US3868059A

    公开(公告)日：1975-02-25

    申请号：US43158774

    申请日：1974-01-07

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： HICKAM WILLIAM M ,  CHARLES ROBERT G

    IPC: G01R15/20 ,  G01R33/12 ,  F23N1/02

    CPC classification number: G01R33/1223 ,  G01R15/202

    Abstract: Apparatus for quantitatively analyzing the content of magnetically permeable material in a fluid stream with the use of a magnetic bridge circuit which becomes unbalanced in response to the flow of magnetically permeable particulate material through an air gap in one of the two legs of the bridge. The presence and amount or flow rate of magnetically permeable particles is detected preferably by means of a Hall generator or the like in a common magnetic flux path of the bridge.

    Abstract translation: 用于使用磁桥电路定量分析流体流中的导磁材料的含量的装置，所述磁桥电路响应于可渗透的颗粒材料通过桥的两条腿之一中的气隙而流动而不平衡。 优选地，通过在桥的公共磁通路径中的霍尔发生器等检测导磁性颗粒的存在和量或流量。

    Oxygen detection apparatus
    3.
    发明授权
    Oxygen detection apparatus 失效
    氧气检测装置

    公开(公告)号：US3597345A

    公开(公告)日：1971-08-03

    申请号：US3597345D

    申请日：1968-11-18

    Applicant: WESTINGHOUSE ELECTRIC CORP

    Inventor： HICKAM WILLIAM M ,  ZAMARIA JOHN F

    IPC: G01N33/20 ,  F23N5/24 ,  G01N27/406 ,  G01N27/409 ,  G01N27/46

    CPC classification number: G01N27/4067

    Abstract: AN OXYGEN DETECTION SYSTEM IS SHOWN INCLUDING AN OXYGEN SENSOR HAVING A DIFFERENTIAL OXYGEN PRESSURE RESPONSIVE ELECTROLYTE CELL AND A CATALYTIC AGENT FOR CATALYTICALLY BURNING A RESIDUAL FUEL IN SAMPLE GASES BEFORE THE GASES REACH THE EFFECTIVE DETECTION ZONE OF THE CELL. THE EFFECTIVE DETECTING ZONE OCCURS WHERE TWO ELECTRODES CONTACT DIRECTLY OPPOSITE SIDES OF AN ELECTROLYTE WALL. A HEATER ARRANGEMENT HEATS THE REGIONS OF THE DETECTION ZONE AND THE CATALYTIC AGENT TO AN EFFECTIVE OPERATING TEMPERATURE. THE CELL INCLUDES A TUBULAR ELECTROLYTE MEMBER HAVING RESPECTIVE OPEN AND CLOSED OPPOSITE ENDS. A GAS ENTRY TUBE EXTENDS INTO THE BORE OF THE ELECTROLYTE MEMBER THEREBY FORMING A CONCENTRIC SPACE THEEBETWEEN. THE INNER SURFACE OF THE ENTRY TUBE AND THE INNER SURFACE OF THE CLOSED END OF THE ELECTROLYTE MEMBER ARE COMPRISED OF A CATALYTIC AGENT, SO THAT SAMPLE GAS ENTERING THE ENTRY TUBE AND DOUBLING BACK THROUGH THE SPACE BETWEEN THE ENTRY TUBE AND THE ELECTROLYTE MEMBER IS EXPOSED TO AN EXTENSIVE AREA OF HEATED CATALYTIC AGENT BEFORE IT REACHES THE EFFECTIVE DETECTION ZONE. THE DETECTION SYSTEM FURTHER INCLUDES A DIFFERENTIAL PRESSURE PUMP CONNECTED TO THE SENSOR OUTLET THROUGH A CAPILLARY RESITRICTION, THE INLET OF THE SENSOR BEING CONNECTED TO A SUBATMOSPHERIC SOURCE OF GAS BEING SAMPLE. THE CAPILLARY RESTRICTION PROVIDES SUBATANTIALLY CONSTANT GAS FLOW RATE.

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