Scanning tunneling potentio-spectroscopic microscope and a data
detecting method
    2.
    发明授权
    Scanning tunneling potentio-spectroscopic microscope and a data detecting method 失效
    扫描隧道电位显微镜和数据检测方法

    公开(公告)号:US5378983A

    公开(公告)日:1995-01-03

    申请号:US977572

    申请日:1992-11-17

    摘要: A scanning tunneling potentio-spectroscopic microscope, includes a conductive probe and a circuit for selectively applying one of first, second and third bias voltages to a sample. A tunnel current flowing between the probe and sample is detected, and a tunnel current signal is produced upon detection thereof. A servo circuit controls a distance between the probe and sample on the basis of the tunnel current signal by producing a servo signal as a feedback signal. A hold circuit switches the servo circuit between operating and non-operating states. Configuration data on a surface of the sample is obtained, on the basis of the servo signal, with the first bias voltage applied to the sample and with the servo circuit in the operating state. A first dependence of the tunnel current on the bias voltage is obtained, from the tunnel current signal and the second bias voltage, with the second bias voltage applied to the sample and with the servo circuit in the non-operating state. A second dependence of the tunnel current on the bias voltage is obtained from the tunnel current signal and the third bias voltage, with the third bias voltage applied to the sample and with the servo circuit in the non-operating state. Electron state data is obtained on the basis of the first dependence, and potential data is obtained on the basis of the first and second dependencies.

    摘要翻译: 扫描隧道电位分光显微镜包括导电探针和用于选择性地将一个第一,第二和第三偏置电压施加到样品的电路。 检测在探针和样品之间流动的隧道电流,并且在检测到隧道电流信号时产生隧道电流信号。 伺服电路通过产生伺服信号作为反馈信号,根据隧道电流信号来控制探头和样品之间的距离。 保持电路在操作状态和非工作状态之间切换伺服电路。 基于伺服信号获得样品表面上的配置数据,其中施加到样品的第一偏置电压和处于操作状态的伺服电路。 从隧道电流信号和第二偏置电压获得隧道电流对偏置电压的第一依赖性,其中第二偏置电压施加到样品并且伺服电路处于非操作状态。 从隧道电流信号和第三偏置电压获得隧道电流对偏置电压的第二依赖性,其中第三偏压施加到样品并且伺服电路处于非操作状态。 基于第一依赖性获得电子状态数据,并且基于第一和第二依赖性获得潜在数据。

    Scanning tunneling potentio-spectroscopic microscope and a data
detecting method
    3.
    发明授权
    Scanning tunneling potentio-spectroscopic microscope and a data detecting method 失效
    扫描隧道电子显微镜和数据检测方法

    公开(公告)号:US5185572A

    公开(公告)日:1993-02-09

    申请号:US585880

    申请日:1990-09-20

    摘要: A bias voltage U.sub.B including a sine-wave voltage U.sub.T sin.omega. .sub.o t and an off-set voltage U.sub.REG is applied to an electrode on a sample. A potential U.sub.1 of the electrode is represented by: U.sub.1 =U.sub.REG +U.sub.T sin.omega. .sub.o t. A voltage including the bias voltage U.sub.B and a voltage .DELTA.U is applied to an electrode on the sample. A probe is approached to the sample by several nm, and a tunnel current I.sub.T flows therebetween. And the probe scans the surface of the sample. During the scan, the position of the probe is servo-controlled in the z-direction, to make constant the average absolute value of the tunnel current. The servo voltage is recorded thereby obtaining an STM image. Given that the potential difference between the electrode and a surface portion facing the probe is U.sub.S (x), the average of U.sub.1 +U.sub.S (x) becomes zero when the average of the tunnel current I.sub.T is zero. Accordingly, =0, that is, U.sub.S (x)=-U.sub.REG. Thus, by recording-U.sub.REG the potential distribution U.sub.S (x) on the sample surface is determined. Spectroscopic data is obtained by an analog operation unit, on the basis of a differential conductance .differential.I.sub.T /.differential.U.sub.T calculated from the tunnel current signal I.sub.T and the bias voltage U.sub.T.

    Scanning type tunnel microscope
    4.
    发明授权
    Scanning type tunnel microscope 失效
    扫描型隧道显微镜

    公开(公告)号:US4877957A

    公开(公告)日:1989-10-31

    申请号:US70775

    申请日:1987-07-07

    摘要: A scanning type tunnel microscope comprises a sample holding member for supporting a sample and a scanning probe which is arranged to face the sample to be separated therefrom by a very small distance and a supported by a scanning probe holding member. A tunnel current is flowed between the sample and scanning probe upon application of a voltage thereacross. A first actuator is coupled to the sample holding member and a second actuator is coupled to the scanning probe holding member so that the first and second actuators relatively drive said sample and said scanning probe in an axial direction and in a planar direction through said sample holding member and said scanning probe holding member. A differential micrometer is connected to the first actuator to move the actuator in the axial direction, and the micrometer and the second actuator are fixed on a substrate.

    摘要翻译: 扫描型隧道显微镜包括用于支撑样本的样本保持构件和扫描探针,扫描探针被布置成面对要被分离的样本非常小的距离并由扫描探针保持构件支撑。 在施加电压之间时,隧道电流在样品和扫描探针之间流动。 第一致动器联接到样品保持构件,第二致动器联接到扫描探针保持构件,使得第一和第二致动器沿轴向方向和平面方向相对地驱动所述样品和扫描探针通过所述样品保持 构件和扫描探针保持构件。 差动千分尺连接到第一致动器以使致动器沿轴向移动,千分尺和第二致动器固定在基板上。

    Scanning probe microscope having cantilever and detecting sample
characteristics by means of reflected sample examination light
    5.
    发明授权
    Scanning probe microscope having cantilever and detecting sample characteristics by means of reflected sample examination light 失效
    具有悬臂的扫描探针显微镜,通过反射样品检测光检测样品特性

    公开(公告)号:US5289004A

    公开(公告)日:1994-02-22

    申请号:US866748

    申请日:1992-04-10

    摘要: A scanning probe microscope comprises a cantilever having a conductive probe positioned near a sample, an actuator for moving the sample to and away from the probe, a circuit for applying a bias voltage between the probe and sample to produce a tunnel current therebetween, a circuit for detecting the produced tunnel current, a circuit for detecting the amount of displacement of the probe resultant from interatomic forces acting between atomics of the probe and sample, thereby producing signals, a circuit for providing the actuator for feedback in response to the output signals from the circuit to retain constant the distance between the probe and sample, thereby causing the actuator to move the sample, a circuit for forming an STS image data from the detected tunnel current, a circuit for forming an STM image data from the detected tunnel current, and a circuit for forming an AFM image data. Thus, the STS, STP and AFM images are separately obtained simultaneously.

    摘要翻译: 扫描探针显微镜包括具有位于样品附近的导电探针的悬臂,用于将样品移动到远离探针的致动器,用于在探针和样品之间施加偏置电压以在其间产生隧道电流的电路,电路 用于检测产生的隧道电流的电路,用于检测由探针和样品的原子间作用的原子间力产生的探针的位移量,从而产生信号的电路,用于响应于来自 保持探针和样品之间的距离恒定的电路,从而使致动器移动样本,从检测到的隧道电流形成STS图像数据的电路,用于从检测到的隧道电流形成STM图像数据的电路, 以及用于形成AFM图像数据的电路。 因此,STS,STP和AFM图像同时分别获得。

    Power supply for ac elevator
    9.
    发明授权
    Power supply for ac elevator 有权
    具有商业电源的电梯和可与商用电源一起生成的逆变器。 功率

    公开(公告)号:US06732838B1

    公开(公告)日:2004-05-11

    申请号:US10129131

    申请日:2002-05-16

    IPC分类号: B66B106

    摘要: An a.c. elevator of the invention has a commercial power source (1), an inverter (3) operable with the power from the commercial power source (1) for generating a.c. power, and an electric motor to be driven with the a.c. power generated by the inverter (3). A power source device includes a rechargeable battery (E), a power source circuit (10) for charging and discharging the battery (E), and a control circuit (9) for controlling the voltage to be input to the inverter (3) by controlling the operation of the power source circuit (10). The battery (E) is charged with regenerative power from the motor, the power generated by the battery (E) is supplied to the inverter (3).

    摘要翻译: 一个 本发明的电梯具有商用电源(1),可与来自商用电源(1)的电力一起工作的逆变器(3),用于产生交流电。 电源和电动马达用a.c.驱动。 逆变器(3)产生的电力。 电源装置包括可再充电电池(E),用于对电池(E)充电和放电的电源电路(10),以及控制电路(9),用于通过以下步骤控制输入到逆变器(3)的电压: 控制电源电路(10)的动作。 电池(E)用来自电动机的再生电力进行充电,电池(E)产生的电力被提供给逆变器(3)。

    Air cleaning apparatus, air filter and method for manufacturing the same
    10.
    发明授权
    Air cleaning apparatus, air filter and method for manufacturing the same 失效
    空气净化装置,空气过滤器及其制造方法

    公开(公告)号:US6120584A

    公开(公告)日:2000-09-19

    申请号:US155493

    申请日:1998-09-28

    IPC分类号: B01D53/04

    摘要: An air cleaning apparatus such as a clean room or the like having an air circulation mechanism which circulates the humidity controlled air through a predetermined air circulation path, wherein the air circulation path is provided with a filter which has a hydrophobic zeolite layer formed on its base filter media surface and another filter which is disposed downstream from the filter having a hydrophobic zeolite layer and is used for removing particulate impurities contained in the circulating air. According to this air cleaning apparatus, gaseous organic impurities and particulate impurities contained in the air circulating in the air cleaning apparatus can be removed without lowering the humidity of the circulating air. Furthermore, since this air cleaning apparatus includes no activated charcoal which is inflammable, the apparatus is excellent from the standpoint of disaster prevention. Accordingly, the filters according to the invention and particle filters can be installed with safety in the ceiling portion of the air cleaning apparatus.

    摘要翻译: PCT No.PCT / JP98 / 00383 Sec。 371日期:1998年9月28日 102(e)1998年9月28日PCT PCT 1998年1月30日PCT公布。 第WO98 / 33575号公报 日本1998年8月6日具有空气循环机构的洁净室等的空气净化装置,该空气循环机构使湿度调节空气通过预定的空气循环路径,其中空气循环路径设置有具有疏水性沸石 在其基底过滤介质表面上形成的层和另一个过滤器,其设置在具有疏水性沸石层的过滤器的下游,并用于除去循环空气中所含的微粒杂质。 根据该空气净化装置,能够除去在空气净化装置中循环的空气中含有的气态有机杂质和微粒杂质,而不降低循环空气的湿度。 此外,由于这种空气净化装置不包括易燃的活性炭,所以从防灾的观点出发,该装置是优异的。 因此,根据本发明的过滤器和颗粒过滤器可以安全地安装在空气净化装置的顶部。