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公开(公告)号：US3870888A
公开(公告)日：1975-03-11
申请号：US25095372
申请日：1972-05-08
Applicant: LOVELOCK JAMES EPHRAIM
Inventor： LOVELOCK JAMES EPHRAIM
CPC classification number: H01J41/08
Abstract: The invention relates to an electron capture detector having an ionisation chamber of large volume and into which a sample flows at a high flow rate, the terms ''''large'''' and ''''high'''' being relative to the hitherto accepted standards for electron capture detectors. Conveniently the ionisation chamber can be in the form of an elongated tube having a length which is an order of magnitude greater than any lateral dimension.
Abstract translation: 本发明涉及具有大体积电离室的电子捕获检测器，样品以高流速流动到其中，术语“大”和“高”是相对于电子捕获检测器迄今为止所接受的标准。 方便地，电离室可以是细长管的形式，其长度比任何横向尺寸大一个数量级。
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公开(公告)号：US3849685A
公开(公告)日：1974-11-19
申请号：US37255773
申请日：1973-06-22
Applicant: HONEYWELL INC
Inventor： LARSEN L , KOMPELIEN A
IPC: G08B17/113 , H01J41/08 , H01J7/40
CPC classification number: G08B17/113 , H01J41/08
Abstract: An improved chamber assembly for an ionization smoke detector. The chamber assembly includes a cup shaped electrode having attached therein a radioactive source to provide the ionization in the chamber. The radioactive body which is retained in a rivet head container, or the like, is staked to the interior surface of the cup shaped electrode, and to make sure that the radioactive source or its container does not project out into the chamber area, the mounting point of the electrode is dimpled so that the face of the mounted radioactive rivet is substantially flush with the general contour of the interior surface of the electrode.
Abstract translation: 用于电离烟雾探测器的改进的腔室组件。 腔室组件包括杯形电极，其附接有放射源以在腔室中提供电离。 将保留在铆钉头容器等中的放射体固定在杯形电极的内表面，并确保放射源或其容器不会突出到室内，安装 电极的点是凹陷的，使得安装的放射性铆钉的表面与电极的内表面的大致轮廓基本齐平。
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公开(公告)号：US3798625A
公开(公告)日：1974-03-19
申请号：US3798625D
申请日：1970-08-13
Applicant: SCI SYSTEMS INC
Inventor： MC MILLIAN L , FROHWEIN G
Abstract: An ionization-type gas contamination detector, intended primarily for use as a fire detector, in which a substance which emits predominantly low-energy beta particles is used as an ionizing radiation source in an ionizing chamber. Rapid changes in ionization current, which indicate the presence of a fire or smoke preceding a fire, are detected and an alarm is energized by a rate-of-change circuit in response to such changes. The output of the ionization chamber is amplified, and a level detector energizes the alarm when the amplified chamber output reaches a predetermined level. The output of the amplifier is adjusted relatively slowly to a reference level. In one embodiment, the amplifier output is adjusted to the reference level by the activation of a sample-and-hold feedback loop for a short period of time. In another embodiment, continuous feedback through a circuit with a relatively long time constant provides the desired adjustment. This feature makes the device relatively insensitive to normal atmospheric and environmental changes, while being very sensitive to changes in the level of combustion products in the atmosphere.
Abstract translation: 主要用作火灾探测器的电离型气体污染检测器，其中主要以低能量β粒子发射的物质被用作电离室中的电离辐射源。 检测到电离电流的快速变化，其指示在火灾之前存在火或烟，并且通过响应于这种变化的变化率电路来激励警报。 电离室的输出被放大，当放大室输出达到预定水平时，电平检测器激励报警器。 将放大器的输出相对缓慢地调整到参考电平。 在一个实施例中，通过在短时间段内激活采样保持反馈回路将放大器输出调整到参考电平。 在另一个实施例中，通过具有较长时间常数的电路的连续反馈提供所需的调整。 该特征使得该装置对正常的大气和环境变化相对不敏感，同时对大气中燃烧产物的变化非常敏感。
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公开(公告)号：US2824246A
公开(公告)日：1958-02-18
申请号：US50704455
申请日：1955-05-09
Applicant: GERATEBAU ANSTALT BALZERS
Inventor： ROBERT KELLER
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公开(公告)号：US4450409A
公开(公告)日：1984-05-22
申请号：US310183
申请日：1981-10-09
Applicant: B. Wayne Castleman , Robert F. Donehoo , Rudolph G. Oswald , Kenneth L. Reed , George H. Shipley
Inventor： B. Wayne Castleman , Robert F. Donehoo , Rudolph G. Oswald , Kenneth L. Reed , George H. Shipley
Abstract: A leak detector comprising a housing having an axis on first and second compartments spaced along the axis and hermetically separated by a partition, the first compartment being closed to comprise a pressure envelope which is in communication with an evacuated space to be monitored for leakage, an ionization cell in the first compartment providing an electrical current determined by gas in that compartment, hermetically sealed feed-through for enabling an electrical connection with the gauge, to the partition from the second compartment, an apparatus in the second compartment performing a control function in accordance with the current supplied by the cell.
Abstract translation: 一种泄漏检测器，包括壳体，所述壳体具有沿着所述轴线间隔开并且被隔板气密隔开的第一和第二隔室上的轴线，所述第一隔室被封闭以包括压力外壳，所述压力外壳与要被监测的泄漏空间连通， 第一隔室中的电离池提供由该隔室中的气体确定的电流，用于实现与量规的电连接的气密密封的通过，与第二隔室的分隔，第二隔室中的设备执行控制功能 根据电池提供的电流。
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Patent Agency Ranking
公开(公告)号：US4121105A
公开(公告)日：1978-10-17
申请号：US739455
申请日：1976-11-08
Applicant: Elias E. Solomon
Inventor： Elias E. Solomon
CPC classification number: H01J41/08 , G08B17/11 , G08B17/113
Abstract: An ionization detecting fire alarm device that comprises a double chamber structure, a source disposed in at least one of the chambers and a vernier adjusting screw electrode protruding into one chamber. The chamber containing the adjustable electrode is more open to the atmosphere than the other chamber. Porting is provided between chambers and detection occurs by sensing the rate of change of ionization current in the chamber structure. The source or sources, one being in each chamber, is a beta source such as a nickel 63 source. A change in ionization current is detected by a unique circuit of this invention which comprises a programmable unijunction transistor oscillator circuit.
Abstract translation: 一种电离检测火灾报警装置，包括双室结构，设置在至少一个室中的源和突出到一个室中的游标调节螺钉电极。 容纳可调节电极的腔室比其他腔室对大气更开放。 在室之间提供移动，并且通过感测室结构中的电离电流的变化率来进行检测。 源或源，一个在每个室中，是诸如镍63源的β源。 电离电流的变化由本发明的唯一电路检测，其包括可编程单结晶体管振荡器电路。
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公开(公告)号：US4051376A
公开(公告)日：1977-09-27
申请号：US652579
申请日：1976-01-26
Applicant: Edgar Adolf Lorch , David John Dwight
Inventor： Edgar Adolf Lorch , David John Dwight
Abstract: A novel form of ionization detector, particularly one operating in the electron capture mode, is described. The detector includes iron-55 as a source of electrons to cause ionization. The detector may be operated in direct current, pulse or frequency modulated modes.
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公开(公告)号：US3828184A
公开(公告)日：1974-08-06
申请号：US23272172
申请日：1972-03-08
Applicant: LUPTON J
Inventor： LUPTON J
Abstract: An Ionization Detector analyses a flowing fluid stream for a specific gas or gases. The recirculation of gases between electrodes is eliminated, and the gas between the anode and cathode is not restrained. The anode is made of a porous, electrically conductive material and the cathode is a beta emitting foil positioned adjacent to, but physically and electrically isolated from, the anode. The detector will function with or without an added cell voltage. The response of the detector to the water of aqueous solutions is so limited in duration that a characteristic response from organic substances can be obtained even when the substance is introduced in an aqueous solution to the chromatographic column.
Abstract translation: 电离检测器分析特定气体或气体的流动流。 消除电极之间气体的再循环，并且不抑制阳极和阴极之间的气体。 阳极由多孔的导电材料制成，阴极是位于阳极附近但物理上和电气上隔离的β发射箔。 检测器将在添加或不添加单元电压的情况下运行。 检测器对水溶液的水的响应在持续时间上受到限制，即使当物质被引入到色谱柱的水溶液中时，也可以获得有机物质的特征响应。
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9.发明授权Ionization detector electrode assembly and method of analyzing gas and vapor substances 失效离子检测器电极组件及分析气体和蒸气物质的方法
公开(公告)号：US3478205A
公开(公告)日：1969-11-11
申请号：US3478205D
申请日：1965-07-29
Applicant: OWENS ILLINOIS INC
Inventor： SPOREK KAREL F
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公开(公告)号：US3448261A
公开(公告)日：1969-06-03
申请号：US3448261D
申请日：1966-03-04
Applicant: BORIS ABEL AMIRAGOFF
Inventor： AMIRAGOFF BORIS ABEL
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