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公开(公告)号：EP0209963A3
公开(公告)日：1988-11-23
申请号：EP86303201
申请日：1986-04-28
发明人： Jennis, Barry
摘要： An ignitron device is provided in which a permanent annular magnet (4) at least partly surrounds the region between the ignitron anode (3) and the surface of a mercury pool (2) connected to the cathode terminal, the magnet being effective to create an axial magnetic field in the aforementioned region which tends to constrain the discharge arc of the device towards the centre of the pool and away from the envelope walls of the device.
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公开(公告)号：EP0199515A3
公开(公告)日：1988-06-22
申请号：EP86302740
申请日：1986-04-14
CPC分类号： H01J23/0873 , H01J23/005 , H01J23/24
摘要： A coupled cavity TWT comprises a hollow copper tube 1 having a plurality of transverse walls 2 of iron which define cavities 3. The walls 2 each include an aperture 4 on the longitudinal axis of the tube 1 through which an electron beam passes during operation of the TWT. Any energy dissipated by electrons colliding with the surfaces of the apertures 4 is conducted as heat away from the walls 2 along , thermal conduction paths including copper elongate members 7.
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3.发明公开Apparatus for forming an electron beam sheet 失效Gerätzur Formung eineshandförmigenElektronenstrahls。
公开(公告)号：EP0259028A2
公开(公告)日：1988-03-09
申请号：EP87307062.7
申请日：1987-08-10
CPC分类号： H01S3/0959 , H01J17/04 , H01J17/40 , H01J17/56
摘要： Apparatus for forming an electron beam sheet includes a cathode member 5 having a slot 6 in a front surface thereof, a grid electrode 4 and the anode 1 of a thyratron. When it is desired to trigger the thyratron into conduction, a suitably large potential difference is applied between the cathode member 5 and the grid 4, resulting in a electron beam sheet being produced extensive of a slot 6 formed in the front surface of the cathode member 5. This produces ionisation and a main discharge current is established between the main anode 1 and cathode 2 of the thyratron.
摘要翻译： 用于形成电子束片的装置包括在其前表面具有槽6的阴极构件5，栅电极4和闸流管的阳极1。 当希望触发闸流管进入导通时，在阴极部件5与栅格4之间施加适当大的电位差，产生电子束片，其广泛地形成在阴极部件的前表面上形成的槽6 这产生电离，并且在闸流管的主阳极1和阴极2之间建立主放电电流。
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公开(公告)号：EP0244594A1
公开(公告)日：1987-11-11
申请号：EP87103336.1
申请日：1984-10-08
CPC分类号： C03B23/203 , C03B23/20 , H01J9/244 , H01J29/861 , H01J29/89
摘要： Previously shielded image intensifier faceplates have been manufactured by a method which has a number of disadvantages, requiring difficult and expensive machining, and introducing distortions.
These may be overcome by employing the invention, where a clear glass disc l3 and a black glass disc l4 are placed in a graphite mould l5 and located so that they fuse and form a block having a shape conforming to the internal; configuration of the mould. Then the block need only be ground down to size and unwanted parts of the black glass removed.摘要翻译： 以前的屏蔽图像增强器面板已经通过具有许多缺点的方法制造，需要困难和昂贵的机械加工以及引入失真。 这些可以通过使用本发明来克服，其中透明玻璃盘13和黑色玻璃盘14放置在石墨模具15中并且被定位成使得它们熔合并形成具有与内部相符的形状的块体; 配置模具。 然后，该块只需要研磨成黑色玻璃的尺寸和不需要的部分。
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公开(公告)号：EP0204457A2
公开(公告)日：1986-12-10
申请号：EP86303782.6
申请日：1986-05-19
发明人： Menown, Hugh , Kettle, Leslie John
IPC分类号： H01J17/56
CPC分类号： H01J17/56
摘要： 0 A thyratron which enables reverse current conduction has an anode 7 and an adjacent anode grid 9 which together enclose a volume 11. A potential difference is applied between the anode 7 and anode grid 9 such that on forward conduction of the thyratron the charge density of plasma in the volume 11 is increased and when forward conduction of the thyratron stops, persists for some time in that space. On reverse conduction, the plasma contained within the volume 11 acts as a cathodic medium.
; In another mode plasma may be created in volume 11 prior to the thyratron becoming conduct- j ing.摘要翻译： 能够进行反向电流传导的闸流管具有一起包围体积11的阳极7和相邻的阳极栅极9.在阳极7和阳极栅极9之间施加电位差，使得在闸流管的正向传导时等离子体的电荷密度 在卷11中增加，并且当闸流管的向前传导停止时，在该空间中持续一段时间。 在反向传导时，容纳在体积11内的等离子体用作阴极介质。 在另一种模式中，等离子体可以在闸流管变为导通之前在体积11中产生。
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公开(公告)号：EP0133360A2
公开(公告)日：1985-02-20
申请号：EP84305131.9
申请日：1984-07-27
发明人： Nixon, Ralph Desmond
摘要： A display arrangement consists of a tubular envelope with fluorescent stripes running along its length, localised portions of which are illuminated by different electron guns which produce flood beams of electrons. Field electrodes which surround each electron gun determine the angular direction at which the flood beam leaves the gun and hence which one of the fluorescent stripes is caused to emit light. The stripes can be of three different primary colours, to produce a coloured display.
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公开(公告)号：EP0101195A2
公开(公告)日：1984-02-22
申请号：EP83304140.3
申请日：1983-07-15
发明人： Nixon, Ralph Desmond
IPC分类号： H01J31/12
CPC分类号： H01J31/128 , H01J31/15
摘要： O A display arrangement utilises a fluorescent screen 3 to provide readily alterable bright displays. The arrangement can provide a fairly large display surface, but can be of very small thickness. It contains electron emissive cathodes 5, and field electrodes 7 positioned closely adjacent to the cathode to control the emission of free electrons. Electrons which are freely emitted are accelerated to a mesh electrode 4 which is held at a modest positive voltage. A fluorescent screen 3 having a positive potential of several thousand volts is positioned closely in front of the mesh electrode. The preferred embodiments of the invention, a number of separate cathodes and/or separate field electrodes are provided, so that selected regions of the screen can be illuminated to provide desired display patterns. Individual regions of the screen can be switched on and off (i.e. rendered bright or dark) by the application of very low switching potentials to the field electrodes and/or the cathodes.
摘要翻译： O显示装置利用荧光屏3提供容易改变的明亮显示。 该布置可以提供相当大的显示表面，但可以具有非常小的厚度。 它包含电子发射阴极5和紧邻阴极放置的场电极7，以控制自由电子的发射。 自由发射的电子被加速到保持适度正电压的网状电极4。 具有几千伏的正电位的荧光屏3紧密地位于网状电极的前方。 本发明的优选实施例提供了多个单独的阴极和/或独立的场电极，从而可以照亮屏幕的选定区域以提供期望的显示图案。 通过向场电极和/或阴极施加非常低的开关电势，可以打开和关闭屏幕的各个区域（即，呈现明亮或暗淡）。
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公开(公告)号：EP0062466A1
公开(公告)日：1982-10-13
申请号：EP82301618.3
申请日：1982-03-26
IPC分类号： G01N27/16
CPC分类号： G01N27/16
摘要： Combustible-gas detectors (of the kind in which a heatable wire filament constituting the detector element exhibits a change in resistance occasioned by the change in its temperature which occurs due to the oxidation of a combustible gas passing over it) usually embed the wire filament in a pellet of ceramic material coated with, or including therewithin, an oxidation catalyst. Unfortunately non-volatile residues - such as lead or silicone vapours - can poison the catalyst and/or obstruct the normal flow of gas to the element's surface, so reducing the sensitivity of the device.
The present invention allows the construction of a detector pellet having greater resistance to catalyst poisoning, especially by silicones, achieving this by building the pellet as a multilayered structure rather like an onion. The invention provides a combustible-gas detector element comprising a heatable wire filament (10; preferably a helical platinum wire) embedded in a pellet formed overall of an oxidation catalyst (preferably palladium) and a porous non-catalytic inert carrier therefor (preferably 75wt% alumina, 25wt% zeolite), wherein the pellet has a laminated, onion-like structure, and consists of a multiplicity (preferably 6 to 20) of concentric layers in which layers of carrier (11,13,15,17; preferably in pairs) alternate with layers of catalyst (12,14,16).摘要翻译： 可燃气体检测器（其中构成检测器元件的可加热丝灯丝由于通过其的可燃气体的氧化而发生的温度变化而引起的电阻变化）通常将线丝嵌入 涂覆有氧化催化剂或包含氧化催化剂的陶瓷材料颗粒。 不幸的是，非挥发性残留物（例如铅或有机硅蒸汽）可能会使催化剂中毒和/或阻碍气体正常流向元件表面，从而降低了设备的灵敏度。 本发明允许构建具有更大的耐催化剂中毒性，特别是硅氧烷的检测器颗粒，通过将沉淀物构建为多层结构而不是洋葱来实现。 本发明提供一种可燃气体检测器元件，其包括嵌入由氧化催化剂（优选钯）形成的颗粒和其多孔非催化惰性载体（优选75重量％）的可加热丝细丝（10;优选螺旋铂丝） 氧化铝，25重量％沸石），其中颗粒具有层叠的洋葱状结构，并且由多个（优选6至20个）同心层组成，其中载体层（11,13,15,17;优选成对地） ）与催化剂层（12,14,16）交替。
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公开(公告)号：EP0244594B1
公开(公告)日：1990-09-19
申请号：EP87103336.1
申请日：1984-10-08
CPC分类号： C03B23/203 , C03B23/20 , H01J9/244 , H01J29/861 , H01J29/89
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