Citizens band transmitter with overall envelope feedback from antenna
coupling filter
    1.
    发明授权
    Citizens band transmitter with overall envelope feedback from antenna coupling filter 失效
    公民频带发射机,具有来自天线耦合滤波器的整体包络反馈

    公开(公告)号:US4181889A

    公开(公告)日:1980-01-01

    申请号:US939466

    申请日:1978-09-05

    IPC分类号: H03F3/24 H03G3/20 H04B1/04

    摘要: A citizens band transmitter employing negative overall envelope feedback in the final RF stage obtains the feedback signal from a filter in the antenna coupling network which has a phase shift of 90 degrees or an odd multiple thereof at the radio frequency. A pair of detector diodes have their cathodes connected to opposite ends of filter and their anodes connected to a low pass filter to provide an envelope of the higher of the two voltages at either end of the filter in the coupling circuit in negative feedback to the modulating signal.

    摘要翻译: 在最终RF级采用负整体包络反馈的公民频带发射机从天线耦合网络中的滤波器获得反射信号,该滤波器在射频处具有90度的相移或其奇数倍。 一对检测器二极管的阴极连接到滤波器的相对端,并且它们的阳极连接到低通滤波器,以在耦合电路中的滤波器的任一端提供两个电压中较高者的包络,以负调制 信号。

    Electrical energy storage device having a porous organic electrode
    3.
    发明授权
    Electrical energy storage device having a porous organic electrode 失效
    具有多孔有机电极的电能储存装置

    公开(公告)号:US5748438A

    公开(公告)日:1998-05-05

    申请号:US351983

    申请日:1994-12-08

    摘要: An ultracapacitor having two porous organic membrane electrodes is made from microporous polymer substrates (10). The surface of the polymer substrate and the walls of the micropores (30) are coated with metal oxides. Both sides of the substrate can be coated with the conductive materials. The film can be a carboxylic ion-exchange material dispersed in a microporous copolymer matrix, and the film can be supported on a woven nylon substrate. The two electrodes (82, 84) are situated substantially parallel to each other, with the coated surface of one electrode facing the coated surface of the other electrode. An ionic electrolyte solution (89) fills the gap (86) between the electrodes.

    摘要翻译: 具有两个多孔有机膜电极的超级电容器由微孔聚合物基材(10)制成。 聚合物基材的表面和微孔(30)的壁涂覆有金属氧化物。 衬底的两侧可以涂覆导电材料。 膜可以是分散在微孔共聚物基质中的羧酸离子交换材料,并且该膜可以负载在编织尼龙基材上。 两个电极(82,84)基本上彼此平行地布置,一个电极的涂覆表面面对另一个电极的涂覆表面。 离子电解质溶液(89)填充电极之间的间隙(86)。

    Method for fabricating electrode patterns
    4.
    发明授权
    Method for fabricating electrode patterns 失效
    电极图形制作方法

    公开(公告)号:US5395740A

    公开(公告)日:1995-03-07

    申请号:US10224

    申请日:1993-01-27

    摘要: A method of forming electrode patterns on a substrate. A transparent substrate (10) is patterned with a photoresist layer (14) on the front side so that portions (18) of the substrate are revealed. A metal oxide layer (12) is deposited on the patterned photoresist layer and the revealed portions of the substrate. The patterned photoresist layer is then exposed to actinic radiation (19) through the back side (25) of the transparent substrate. The photoresist pattern (20) is removed, carrying with it those portions of the metal oxide layer deposited on the photoresist layer, forming an electrode pattern (22) by a lift-off technique.

    摘要翻译: 在基板上形成电极图案的方法。 透明基板(10)被图案化,在前侧具有光致抗蚀剂层(14),从而露出基板的部分(18)。 金属氧化物层(12)沉积在图案化的光刻胶层和衬底的露出部分上。 然后将图案化的光致抗蚀剂层通过透明基底的背面(25)暴露于光化辐射(19)。 去除光致抗蚀剂图案(20),携带沉积在光致抗蚀剂层上的金属氧化物层的那些部分,通过剥离技术形成电极图案(22)。

    Mixed-valence complex electrodes for a rechargeable electrical energy
storage device
    5.
    发明授权
    Mixed-valence complex electrodes for a rechargeable electrical energy storage device 失效
    用于可充电电能存储装置的混合复数电极

    公开(公告)号:US5383089A

    公开(公告)日:1995-01-17

    申请号:US58849

    申请日:1993-05-10

    摘要: An electrode for a rechargeable electrical energy storage device has a substrate and an electrochemically active material deposited on the substrate. The electrochemically active material provides electron transfer between itself and an electrolyte. The electrochemically active material is a mixed-valence complex containing at least two metal atoms and at least one ligand attached to the metal atoms, and has metal-to-metal bonds where the metals exist in multiple oxidation states such that electron transfer between the metal atoms in the complex or between discrete complexes occurs. A rechargeable electrical energy storage device (20) has two electrodes (28, 36) constructed from a mixed-valence complex (30), and the electrodes are electrically connected by an ion carrying electrolyte (32). The electrodes are also physically separated from each other by a barrier (34) that will pass ions but not electrons.

    摘要翻译: 用于可再充电电能存储装置的电极具有沉积在衬底上的衬底和电化学活性材料。 电化学活性材料在其自身和电解质之间提供电子转移。 电化学活性材料是含有至少两个金属原子和至少一个与金属原子连接的配位体的混合价络合物,并且具有金属 - 金属键,其中金属以多种氧化态存在,使得金属间的电子转移 复合物中的原子或离散复合体之间发生原子。 可再充电电能存储装置(20)具有由混合络合物(30)构成的两个电极(28,36),并且电极通过离子载体电解质(32)电连接。 电极也通过将通过离子而不是电子的屏障(34)在物理上彼此分离。

    Method of cleaning printed circuit boards using formic acid
    6.
    发明授权
    Method of cleaning printed circuit boards using formic acid 失效
    使用甲酸清洗印刷电路板的方法

    公开(公告)号:US5122200A

    公开(公告)日:1992-06-16

    申请号:US583630

    申请日:1990-09-17

    摘要: Solder pastes having vehicles including formic acid-soluble organic acids as fluxing agents are described. Fluxing agents may be compounds of the formula: ##STR1## where R is an electron withdrawing group. In one embodiment, R is selected from the group consisting of fluorine, chlorine, bromine, iodine, sulfur, hydroxyl, nitrile, and benzyl. Other suitable formic-acid fluxing agents include, but are not limited to, adipic acid, acrylic acid, polyacrylic acid, methacrylic acid and polymethacrylic acid. The compounds clean oxides from the printed circuit boards (PCBs) under assembly and then volatilize leaving a residue to be cleaned away. The cleaning step involves rinsing with formic acid. No undesired residue remains indicating that the organic acids of the invention are effective in cleaning boards. Such acid fluxing agents can be used mixed with typical solder components, such as lead/tin solder pastes, or applied topically to solders, such as solder balls; both techniques permit the assembly of PCBs more easily with high quality bonds, and with little or no residue. Malic acid is a preferred organic acid fluxing agent. The formic acid cleaning step may be followed by a water rinse.

    摘要翻译: 描述了具有包含甲酸可溶性有机酸作为助熔剂的载体的焊膏。 助焊剂可以是下式的化合物:其中R是吸电子基团。 在一个实施方案中,R选自氟,氯,溴,碘,硫,羟基,腈和苄基。 其它合适的甲酸助熔剂包括但不限于己二酸,丙烯酸,聚丙烯酸,甲基丙烯酸和聚甲基丙烯酸。 这些化合物在组装时清除印刷电路板(PCB)的氧化物,然后挥发,留下残留物进行清除。 清洁步骤包括用甲酸冲洗。 没有不需要的残留物表明本发明的有机酸在清洁板中是有效的。 这种酸助熔剂可以与典型的焊料组分(例如铅/锡焊膏)混合使用,或局部施用于焊料如焊料球; 这两种技术允许更容易地组装PCBs,具有高质量的键,并且几乎没有或没有残留物。 苹果酸是优选的有机酸助熔剂。 甲酸清洗步骤之后可以进行水冲洗。

    Method of cleaning printed circuit boards using water
    7.
    发明授权
    Method of cleaning printed circuit boards using water 失效
    使用水清洗印刷电路板的方法

    公开(公告)号:US5092943A

    公开(公告)日:1992-03-03

    申请号:US583629

    申请日:1990-09-17

    IPC分类号: B23K35/36 H05K3/34

    摘要: Solder pastes having vehicles including blends of low boiling point alcohols and relatively high boiling point alcohols are described which leave residues which may be cleaned using only water are described. The low boiling point alcohols have a boiling point range of between about 65.degree. and about 150.degree. C. whereas the high boiling point alcohols have a boiling point in rhe range of about 150.degree. to about 270.degree. C. The solder pastes also use water-soluble organic acids as fluxing agents such as compounds of the formula: ##STR1## where R is an electron withdrawing group such as fluorine, chlorine, bromine, iodine, sulfur, hydroxyl, nitrile, and benzyl. Other suitable formic-acid fluxing agents include, but are not limited to, adipic acid, polyacrylic acid, methacrylic acid and polymethacrylic acid. The compounds clean oxides from the printed circuit boards (PCBs) under assembly and then volatilze leaving a residue to be cleaned away. The cleaning step involves rinsing with water. No undesired residue remains indicating that the organic acids of the invention are effective in cleaning boards. Malic acid is a preferred organic acid fluxing agent.

    摘要翻译: 描述了具有包含低沸点醇和相对高沸点醇的共混物的载体的焊膏,其留下可以仅使用水清洁的残余物。 低沸点醇的沸点范围为约65℃至约150℃,而高沸点醇的沸点在约150℃至约270℃的流变范围内。焊膏还使用水 - 可溶性有机酸作为助熔剂,例如下式的化合物:其中R是吸电子基团如氟,氯,溴,碘,硫,羟基,腈和苄基。 其它合适的甲酸助熔剂包括但不限于己二酸,聚丙烯酸,甲基丙烯酸和聚甲基丙烯酸。 这些化合物在组装时清除印刷电路板(PCB)的氧化物,然后挥发,留下残留物进行清理。 清洁步骤包括用水冲洗。 没有不需要的残留物表明本发明的有机酸在清洁板中是有效的。 苹果酸是优选的有机酸助熔剂。

    Digital filter for random variable
    9.
    发明授权
    Digital filter for random variable 失效
    数字滤波器用于随机变量

    公开(公告)号:US5003502A

    公开(公告)日:1991-03-26

    申请号:US262406

    申请日:1988-10-25

    申请人: James L. Davis

    发明人: James L. Davis

    IPC分类号: G01N9/24 H03H17/02

    CPC分类号: H03H17/0255 G01N9/24

    摘要: A digital filter for use with a randomly generated variable, such as in a radioactive densometer, is provided and includes a microprocessor and timing clock for sampling the random variable over a specific time interval. The microprocessor utilizes a weighting factor based upon a first confidence factor and computes the mean value of a first sample of the random variable and compares the number of standard deviations that a subsequent sample is from the mean value of the previous sample and uses a probability related factor to determine if the subsequent sample represents an actual change in density. Further, the microprocessor uses a second confidence factor in determining the weighting factor which counts the number of consecutive times that the subsequent samples are greater than, or less than the mean value and again determines a probability related factor to determine if a change in density is actually occurring. As both the first and second confidence factors increase, so does the weighting factor and the probability that an actual change in fluid density has occurred.

    摘要翻译: 提供了一种与随机生成的变量一起使用的数字滤波器,例如在放射性浓度计中,并包括微处理器和定时时钟,用于在特定的时间间隔内对随机变量进行采样。 微处理器利用基于第一置信因子的加权因子并计算随机变量的第一样本的平均值,并将随后样本的标准偏差数与先前样本的平均值进行比较,并使用概率相关 因子来确定后续样本是否代表密度的实际变化。 此外,微处理器使用第二置信因子来确定对连续次数进行计数的加权因子,后者的样本大于或小于平均值,并且再次确定概率相关因子以确定密度变化是否为 实际发生。 由于第一和第二置信因子都增加,因此加权因子和流体密度的实际变化发生的可能性也在增加。

    Gas turbine control
    10.
    发明授权
    Gas turbine control 失效
    燃气轮机控制

    公开(公告)号:US3938321A

    公开(公告)日:1976-02-17

    申请号:US447847

    申请日:1974-03-04

    IPC分类号: F02C9/54 F02C9/02

    CPC分类号: F02C9/54

    摘要: A control system for a gas-coupled gas turbine engine particularly directed to control of the setting angle of the power turbine nozzle of the engine and to correlation of the power turbine nozzle setting with fuel supply and with operating parameters of the engine. The control provides for operation of the engine from closed to full open throttle, with closed throttle calling for idle speed of the engine. The initial stage of opening the throttle develops an increasing nozzle reference temperature signal which is matched with a turbine temperature signal to control a servo which varies the setting, and therefore area, of the turbine nozzle. After the initial stage of throttle opening, the reference temperature signal increases with engine speed, which increases in response to an increasing throttle signal. The actual level of the nozzle reference temperature is also a function of engine inlet temperature up to a given level of this temperature. Throttle position generates a speed reference signal which is matched with actual gas generator speed to control fuel supply to the engine. The speed reference signal is coordinated with the nozzle reference temperature signal so that there is a smooth transition from the increasing nozzle reference temperature over the initial range of throttle movement to the increasing engine speed reference signal over the remainder of the travel of the throttle up to or near 100% rated power output signal.The control also responds to acceleration of the gas generator to vary the nozzle reference signals turbine inlet temperature with an acceleration reference temperature signal responsive to engine inlet air temperature, which signal is used to limit engine fuel flow during acceleration. Upon occurrence of an engine acceleration above idle, the opening of the turbine nozzle is limited to improve energy division between the gas generator and power turbines. In one embodiment this limitation is maintained during the duration of acceleration; in another the limitation of nozzle opening is progressively relaxed during the acceleration.The nozzle opening limitation is overridden during starting of the engine and acceleration to idle, specifically by an override responsive to operation of the starter to crank the gas generator.

    摘要翻译: 一种用于气体联接燃气涡轮发动机的控制系统,特别涉及到控制发动机的动力涡轮喷嘴的设定角度以及动力涡轮喷嘴设置与燃料供应以及发动机的运行参数的相关性。 该控制提供发动机从关闭到全开的节气门的操作,具有闭合的油门呼叫发动机的怠速。 打开节气门的初始阶段产生增加的喷嘴参考温度信号,其与涡轮机温度信号相匹配,以控制改变涡轮喷嘴的设定,因此改变涡轮喷嘴面积的伺服。 在节气门开启的初始阶段后,参考温度信号随着发动机转速而增加,响应于增加的节气门信号而增加。 喷嘴参考温度的实际水平也是发动机入口温度达到该温度给定水平的函数。 节气门位置产生与实际气体发生器速度匹配的速度参考信号,以控制向发动机供油。 速度参考信号与喷嘴参考温度信号协调,使得在节气门运动的初始范围内,从增加的喷嘴参考温度到节气门行程的剩余时间到增加的发动机转速参考信号的平滑过渡直到 或接近100%额定功率输出信号。