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公开(公告)号：US4361835A
公开(公告)日：1982-11-30
申请号：US244357
申请日：1981-03-16
申请人： Bela G. Nagy
发明人： Bela G. Nagy
CPC分类号： G01F23/72
摘要： A liquid level detector "stick" includes a column of Hall-cells adapted to be mounted vertically in a liquid's containing tank. One or more toroidal magnets are slidably fitted about the stick. A float elevates the topmost magnet to the level of liquids in the tank. If the liquids comprise two immiscible parts, a second of the magnets may be floated at the surface of the denser liquid part. A very low power electronic system continuously scans the Hall-cells and determines which particular one or ones of them are adjacent a magnet. This detector may be used in a gasoline station storage tank that may also contain water, providing accurate measure of both liquids. It is also capable of operating in a monitor mode for sounding an alarm when a change in the level of either liquid part occurs that may indicate leakage into or from the tank or an attempted theft.
摘要翻译： 液位检测器“棒”包括适于垂直安装在液体容纳槽中的霍尔电池柱。 一个或多个环形磁体可滑动地装配在该棒上。 浮子将最上面的磁铁提升到油箱中的液体水平。 如果液体包括两个不混溶的部分，则第二个磁体可以漂浮在更密的液体部分的表面。 一个非常低功率的电子系统连续扫描霍尔单元，并确定它们中的哪一个与磁体相邻。 该检测器可以用在还可以含有水的加油站储罐中，提供两种液体的精确测量。 当发生任何液体部分的水平变化，可能会发生泄漏进入或从坦克泄漏或企图盗窃时，它也能够以监视器模式操作，以发出警报。
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公开(公告)号：US4337114A
公开(公告)日：1982-06-29
申请号：US202027
申请日：1980-10-29
摘要： Nodular copper is dissolved from aluminum foil surfaces by contacting the aluminum with a 0.1 to 2 M ammonium persulfate solution. The contacting temperature is 20.degree. to 40.degree. C., preferably 30.degree. C., and the contacting time is 1 to 10 minutes, preferably 2 minutes.
摘要翻译： 通过使铝与0.1至2M的过硫酸铵溶液接触，从铝箔表面溶解结节状铜。 接触温度为20〜40℃，优选为30℃，接触时间为1〜10分钟，优选2分钟。
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公开(公告)号：US4324750A
公开(公告)日：1982-04-13
申请号：US178669
申请日：1980-08-18
申请人： Galeb H. Maher
发明人： Galeb H. Maher
CPC分类号： C04B35/491 , H01G4/1245
摘要： A powder blend consisting essentially of precursors of a single antiferroelectric compound of lead-barium-lanthanum-zirconate titanate doped with silver, includes at least 0.7 mole percent bismuth permitting a near-full reaction to be achieved at calcining in the low temperature range of 1000.degree. C. to 1130.degree. C. A body is formed of the pulverized calcined material, which body is then sintered in a closed container at 1100.degree. C. Residual PbO remains in the body rendering it conductive. The body is annealed in open atmosphere at 950.degree. C. to drive out the free PbO providing an excellent dielectric having an unusual combination of high K and low TCC.
摘要翻译： 主要由掺杂有银的铅 - 镧 - 锆酸铅钛酸盐的单一反铁电化合物的前体组成的粉末混合物包括至少0.7摩尔％的铋，允许在1000℃的低温范围内的煅烧中实现接近完全的反应 体积由粉碎的煅烧材料形成，然后该体在1100℃的密闭容器中烧结。残留的PbO保留在体内，使其导电。 将体在950℃的开放气氛中退火以驱出游离的PbO，提供具有高K和低TCC的不寻常组合的优异电介质。
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公开(公告)号：US4323950A
公开(公告)日：1982-04-06
申请号：US89823
申请日：1979-10-31
申请人： Walter J. Bernard
发明人： Walter J. Bernard
CPC分类号： H01G9/048 , H01G9/0425 , Y10T29/417
摘要： An electrolytic capacitor has a cathode electrode produced by depositing aluminum on a porous high surface-area dielectric substrate as a layer at least 2000 A thick on each surface.
摘要翻译： 电解电容器具有通过在多孔高表面积电介质基板上沉积铝作为每个表面上至少具有至少2000μA厚度的层而制备的阴极电极。
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公开(公告)号：US4283753A
公开(公告)日：1981-08-11
申请号：US79685
申请日：1979-09-28
申请人： Ian Burn
发明人： Ian Burn
IPC分类号： C04B35/468 , H01G4/12 , C04B35/46
CPC分类号： C04B35/4684 , C04B35/4682 , H01G4/1227
摘要： The ceramic body of a monolithic ceramic capacitor consists of a granular barium titanate phase and a relatively low temperature melting intergranular phase. The body is capable of exhibiting a very high dielectric constant, e.g., over 5000, a Curie temperature of near 25.degree. C., and may be fired to maturity at 1150.degree. C. or lower and contain low cost buried electrodes. These properties obtain from a narrow range of compositions for which charge balance and large/small cation stoichiometry in the total formulation are found to be very critical. Cd, Zn, Cu, Li and Na are found to enter the grains as large acceptor cations on Ba sites and may be charge compensated by the small donor cations of charge +5, Bi, Sb, Nb and Ta or by the small donor cations of charge +6, W and Mo, on the Ti sites. At least 0.3 mole percent of glass-former cations are desirable for establishing a low melting flux during sintering but more than 2.2 mole percent glass-formers tends to reduce the dielectric constant.
摘要翻译： 单片陶瓷电容器的陶瓷体由粒状钛酸钡相和相对低温熔化的晶间相组成。 身体能够表现出非常高的介电常数，例如超过5000，居里温度接近25℃，并且可以在1150℃或更低温度下焙烧成熟，并含有低成本的埋入电极。 这些性质从组合物的窄范围获得，其中发现总配方中的电荷平衡和大/小阳离子化学计量学非常关键。 发现Cd，Zn，Cu，Li和Na作为Ba位置上的大受体阳离子进入晶粒，并可以通过电荷+5，Bi，Sb，Nb和Ta的小供体阳离子或小的供体阳离子 的电荷+6，W和Mo，在Ti位置。 至少0.3摩尔百分比的玻璃形成阳离子是期望的，以便在烧结期间建立低熔点的熔剂，但大于2.2摩尔％的玻璃 - 成型剂倾向于降低介电常数。
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公开(公告)号：US4267565A
公开(公告)日：1981-05-12
申请号：US26467
申请日：1979-04-02
申请人： Henry F. Puppolo , Mark Markarian
发明人： Henry F. Puppolo , Mark Markarian
CPC分类号： H01G9/08
摘要： A copper-encased flat electrolytic capacitor is produced by sealing the capacitor unit in a heat-sealable polymer-copper laminate. The polymer side of the laminate is adjacent the capacitor section, and the copper side forms the exterior of the sealed unit. Leads may be attached to opposite surfaces of the capacitor, or electrical connection may be made prior to sealing, e.g., to leg-like extensions of the laminate that, after sealing, serve as the leads.
摘要翻译： 通过将电容器单元密封在可热封的聚合物 - 铜层压体中来制造铜包的扁平电解电容器。 层叠体的聚合物侧与电容器部相邻，铜侧形成密封部的外部。 引线可以附接到电容器的相对表面，或者可以在密封之前，例如，在密封之后用作引线的层叠体的腿状延伸部之前进行电连接。
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公开(公告)号：US4247847A
公开(公告)日：1981-01-27
申请号：US934154
申请日：1978-08-16
IPC分类号： G01V1/16 , G08B13/08 , G08B13/16 , G08B13/183
CPC分类号： G08B13/183 , G01V1/16 , G08B13/08 , G08B13/1654 , Y10T307/773
摘要： An opaque box encloses a lamp, an integrated circuit light-change detector including a photo-diode and an amplifier, and an opto-mechanical means for modulating the light that is coupled from the lamp to the photodiode in response to a mechanical vibration of the box. This device serves as a vibration detector and more particularly as an intrusion alarm when mounted on a door or a window.
摘要翻译： 不透明的盒子包围灯，包括光电二极管和放大器的集成电路变化检测器，以及用于调制从灯耦合到光电二极管的光的光机械装置，以响应于 框。 该装置用作振动检测器，更特别地，当安装在门或窗上时作为入侵报警器。
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公开(公告)号：US4204919A
公开(公告)日：1980-05-27
申请号：US35145
申请日：1979-05-02
摘要： Aluminum electrolytic capacitor foil is treated prior to anodization in a two-step process in which a hydrous oxide film is first formed on the foil and the hydrous oxide is then modified. In the first step the foil is immersed in boiling water to form an appropriate thickness of hydrous oxide and in the second step it is immersed in a boiling aqueous solution containing phosphate, silicate, or tartrate ions, or combinations thereof. This treatment results in a decreased power consumption during anodization and produces a film having higher film capacitance.
摘要翻译： 铝电解电容器箔在阳极氧化之前进行两步法处理，其中首先在箔上形成水合氧化物膜，然后修饰含水氧化物。 在第一步骤中，将箔浸入沸水中以形成适当厚度的氧化亚氮，并且在第二步骤中将其浸入含有磷酸盐，硅酸盐或酒石酸盐离子或其组合的沸腾水溶液中。 这种处理导致阳极氧化期间功率消耗降低并且产生具有更高膜电容的膜。
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公开(公告)号：US4201666A
公开(公告)日：1980-05-06
申请号：US32052
申请日：1979-04-23
申请人： Joel A. Newton
发明人： Joel A. Newton
CPC分类号： C02F1/5236 , C02F2103/28 , Y10S210/917 , Y10S210/919
摘要： Aqueous pulp-and-paper mill waste streams are treated with a waste stream derived from the nitric acid etching of aluminum foil for electrolytic capacitors. This waste stream consists essentially of aqueous acidic aluminum nitrate, and a polyelectrolyte is added to it to synergistically improve flocculation, settling, and dosage rates.
摘要翻译： 纸浆和造纸厂的废水流用来自用于电解电容器的铝箔的硝酸蚀刻的废物流处理。 该废物流主要由酸性硝酸铝水溶液组成，并向其中加入聚电解质以协同改善絮凝，沉降和剂量率。
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公开(公告)号：US4199753A
公开(公告)日：1980-04-22
申请号：US878045
申请日：1978-02-15
IPC分类号： G08B13/189 , G08B21/00
CPC分类号： G08B13/1895
摘要： An integrated circuit employing a photo-diode activates an alarm when an intruder causes a change in the ambient light patterns by more than about 5% in an area under surveillance. The circuit includes a voltage regulator for supplying a back bias voltage to the photo-diode which voltage is substantially purged of noise that may be superimposed on the main d.c. supply voltage conductors. The regulator circuit includes a modified current-mirror type current source and a V.sub.BE -multiplier circuit providing a log-log noise transfer function.
摘要翻译： 使用光电二极管的集成电路当入侵者在监视区域内引起环境光线图案的变化超过约5％时激活警报。 该电路包括用于向光电二极管提供反向偏置电压的电压调节器，该电压基本上被清除了可能叠加在主直流上的噪声。 电源电压导体。 调节器电路包括修改的电流镜型电流源和提供对数噪声传递函数的VBE倍增器电路。
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