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    • 46. 发明授权
    • Infrared radiation sensitive device
    • 红外辐射敏感装置
    • US6121615A
    • 2000-09-19
    • US926304
    • 1997-09-05
    • Satoru Ito
    • Satoru Ito
    • G01K7/00G01J1/02G01J5/34H01L31/0264H01L37/02G01J5/00
    • H01L37/02G01J5/34H01L2224/48091
    • A pyroelectric infrared sensor device (10) with improved relative detectivity and with which it is easier to change the relative detectivity, and also with reduced manufacturing cost. This sensor device (10) includes a pyroelectric unit (12) having an alternating lamination of internal electrodes (16) and pyroelectric layers (14) with a predetermined thickness t. The ends of the internal electrodes (16) which extend perpendicular to the length direction thereof are respectively exposed at alternate terminal surfaces of the pyroelectric unit (12) and external electrodes (18) are connected to the terminal ends of those internal electrodes (16), respectively. The pyroelectric infrared sensor device (10) is horizontally polarized between the internal electrodes (16) via the external electrodes (18) with respect to the infrared light receiving plane thereof. The ends of the internal electrodes (16) perpendicular to the width direction thereof are exposed at the top and bottom surfaces of the pyroelectric unit (12) in such a manner that its top surface side will act as the light receiving plane of the pyroelectric infrared sensor device (10).
    • 一种具有改进的相对检测性并且易于改变相对检测性的热释电红外传感器装置(10),并且还降低制造成本。 该传感器装置(10)包括具有预定厚度t的内部电极(16)和热电层(14)的交替叠层的热电单元(12)。 内部电极(16)的与其长度方向垂直的端部分别在热电单元(12)的交替的端子表面露出,外部电极(18)连接到那些内部电极(16)的末端, , 分别。 热电式红外线传感器装置10通过外部电极18相对于内部电极16的红外光接收面在水平方向上极化。 垂直于其宽度方向的内部电极(16)的端部以热电单元(12)的顶表面和底表面暴露在其顶表面侧将用作热释电红外线 传感器装置(10)。
    • 47. 发明授权
    • Pyroelectric infrared sensor device
    • 热电红外传感器装置
    • US6049080A
    • 2000-04-11
    • US957536
    • 1997-10-29
    • Satoru Ito
    • Satoru Ito
    • G01J1/02G01J5/02G01J5/12G01J5/34H01L35/00H01L37/02
    • G01J5/06G01J5/02G01J5/024G01J5/04G01J5/046G01J5/10G01J5/34H01L37/02H01L2224/48091
    • A pyroelectric infrared sensor device with improved sensitivity and relative detection rate and reduced manufacturing cost. The infrared sensor device includes a substrate of rectangular shape. The substrate is made of a pyroelectric material, such as tetragonal-system lead titanate pyroelectric ceramics. A pair of comb-shaped electrode patterns each having a set of parallel conductive open-ended fingers are disposed on the top surface of the substrate such that the open-ended fingers of one electrode pattern are spatially interdigitated in relation to those of the other. The paired comb-shaped electrodes have at least three finger pairs whereas the interelectrode distance corresponding to the gap between neighboring fingers is greater than 100 micrometers. These comb-shaped electrodes satisfying the criteria render the pyroelectric material, upon application of a DC voltage between them, substantially horizontally polarizable at or near the top substrate surface which acts as the infrared light receiving plane. An opposite electrode is on the entire bottom surface of the substrate. This electrode has portions insulatively overlapping the comb-shaped electrodes with the pyroelectric material being sandwiched therebetween.
    • 一种具有提高灵敏度和相对检测率并降低制造成本的热释电红外传感器装置。 红外线传感器装置包括矩形的基板。 基板由热电材料制成,例如四方晶系钛酸铅热电陶瓷。 一对梳状电极图案,每一个具有一组平行的导电开口指状物的梳状电极图案设置在基板的顶表面上,使得一个电极图案的开口指状物相对于另一个电极图案在空间上相互交错。 成对的梳状电极具有至少三个手指对,而对应于相邻手指之间的间隙的电极间距离大于100微米。 满足这些标准的这些梳状电极使得热电材料在它们之间施加直流电压时,在作为红外光接收平面的顶部衬底表面处或附近基本上可水平极化。 相对的电极在基底的整个底表面上。 该电极具有与梳状电极绝缘重叠的部分,夹带有热电材料。
    • 49. 发明授权
    • Power conversion apparatus
    • 电力转换装置
    • US5742493A
    • 1998-04-21
    • US705655
    • 1996-08-30
    • Satoru ItoSatoru InaridaKiyoshi Nakamura
    • Satoru ItoSatoru InaridaKiyoshi Nakamura
    • H02M7/219B60L3/00B60L9/28H02M5/458H02M7/12H02M7/48H02M7/483H02P27/06H02P27/08H02M5/45
    • H02M7/487B60L3/0023B60L9/28H02M1/4233H02M5/4585B60L2200/26B60L2220/12
    • A power conversion apparatus has a PWM power converter coupled to an A.C. power supply on one side and to a D.C. load on the other side, a voltage controller for adjusting the D.C. output voltage from the converter, a power factor controller for adjusting the power factor on the A.C. side of the converter, a command generator for generating a PWM modulation factor and a phase signal in response to the voltage and an output from the power factor controller, and a PWM modulation unit for controlling the converter in response to these command signals. The power factor controller is controlled to reduce its power factor when a control parameter relating to the modulation factor of the converter approaches its limit value, and the power of the D.C. load is limited when a control parameter relating to the input power of the converter approaches its limit value, such that the power factor of the power converter is allowed to be reduced and the power of the D.C. load is limited respectively in each designated region, thereby preventing any overcurrent even if the power supply voltage fluctuates. As a result, continuous operation is maintained, making it possible to reduce the capacity of the converter required for generating the same output power over the conventional converter.
    • 功率转换装置具有一个PWM功率转换器,其耦合到一侧的AC电源和另一侧的DC负载,用于调整来自转换器的DC输出电压的电压控制器,用于调节功率因数的功率因数控制器 在转换器的AC侧,用于响应于电压和来自功率因数控制器的输出而产生PWM调制因子和相位信号的命令发生器,以及用于响应于这些命令信号控制转换器的PWM调制单元 。 当与转换器的调制因子相关的控制参数接近其限制值时,功率因数控制器被控制以降低其功率因数,并且当与转换器的输入功率相关的控制参数接近时,直流负载的功率受到限制 其限制值,使得功率转换器的功率因数被允许减小,并且在每个指定区域中分别限制DC负载的功率,从而即使电源电压波动也可以防止任何过电流。 结果,维持连续运行,使得有可能降低与常规转换器相同的输出功率所需的转换器的容量。