Measuring Minority Carrier Lifetime
    2.
    发明申请
    Measuring Minority Carrier Lifetime 审中-公开
    衡量少数载体寿命

    公开(公告)号:US20120081132A1

    公开(公告)日:2012-04-05

    申请号:US13080451

    申请日:2011-04-05

    IPC分类号: G01R27/28 H01F17/06

    摘要: An apparatus includes a member including a ferromagnetic material, an inductance-capacitance resonant circuit, a substrate disposed relative to the member, and a plurality of radiation sources. The member includes a post disposed at its center and a surface extending to an outer wall. The member defines a gap between the post and the outer wall. The inductance-capacitance resonant circuit is configured to resonate at a measurement frequency. The circuit includes an inductor disposed relative to the post. The substrate is disposed relative to the member. The substrate is electromagnetically coupled to the inductor. The plurality of radiation sources is disposed radially outward from and circumferentially around the post of the member. The apparatus can be used to simultaneously measure conductance (inverse sheet resistance), steady state photoconductance, true steady state minority carrier lifetime, photoconductance build-up and photoconductance decay lifetime.

    摘要翻译: 一种装置包括包括铁磁材料,电感 - 电容谐振电路,相对于该构件设置的衬底和多个辐射源的构件。 该构件包括设置在其中心处的柱和延伸到外壁的表面。 构件限定了柱和外壁之间的间隙。 电感 - 电容谐振电路被配置为以测量频率谐振。 电路包括相对于柱设置的电感器。 衬底相对于构件设置。 衬底电感耦合到电感器。 多个辐射源从构件的柱体周向地周向地设置。 该装置可以同时测量电导(反薄片电阻),稳态光电导,真实的稳态少数载流子寿命,光电导积累和光电导衰减寿命。

    Infrared target generator
    3.
    发明授权
    Infrared target generator 失效
    红外目标发生器

    公开(公告)号:US5097139A

    公开(公告)日:1992-03-17

    申请号:US689681

    申请日:1991-04-19

    申请人: Joseph W. Foster

    发明人: Joseph W. Foster

    IPC分类号: G01J5/00 G01J5/52

    摘要: Pivotable, reflective target elements are used to reflect infrared radiat from blackbody sources and transmit the radiation toward infrared-detecting device to test the capability of the device to detect patterns of infrared radiation under dynamic field environment.

    摘要翻译: 透视的反射目标元件用于反映来自黑体源的红外辐射,并将辐射传输到红外检测装置,以测试该装置在动态场环境下检测红外辐射图案的能力。

    Prepayment metering system using encoded purchase cards from multiple
locations
    5.
    发明授权
    Prepayment metering system using encoded purchase cards from multiple locations 失效
    使用编码购买卡从多个位置进行预测计量系统

    公开(公告)号:US5146067A

    公开(公告)日:1992-09-08

    申请号:US464328

    申请日:1990-01-12

    摘要: A prepayment system for dispensing utilities using mag-stripe cards is disclosed wherein an accounting computer in a central office is used in conjunction with point-of-sale machines for encrypting a value message which is written onto the mag-stripe of a mag-stripe card. The value message contains information relating to the amount of utilities purchased by the customer, the utility rates, the site identification number, and a unique password formed by the site number, a hidden number, and the transaction number. The mag-stripe card is carried by mail or in person to the consumer's home or office and inserted into a mag-stripe card reader attached to microprocessor-based utility control device. This utility control device is capable of reading and decoding the mag-stripe card and storing the value information into memory for use in monitoring the utility usage of the customer and disconnecting or connecting the utility based on the amount of utilities purchased.

    摘要翻译: 公开了一种用于使用磁条卡分配实用程序的预付系统,其中中心局中的会计计算机与销售点机器结合使用,用于加密写入到磁条的磁条上的价值消息 卡。 价值消息包含与客户购买的公用事业的数量有关的信息,利用率,站点标识号以及由站点号码,隐藏号码和交易号码形成的唯一密码。 磁条卡通过邮寄或亲自携带到消费者的家庭或办公室,并插入连接到基于微处理器的公用事业控制设备的磁条读卡器。 该实用控制装置能够读取和解码磁条卡,并将价值信息存储到存储器中,用于监视客户的公用事业用途,并根据购买的公用事业的数量断开或连接公用事业。