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    • 3. 发明授权
    • Interatomic force measurements using passively drift compensated non-contact in situ calibrated atomic force microscopy—quantifying chemical bond forces between electronic orbitals by direct force measurements at subatomic lateral resolution
    • 原子力测量使用被动偏移补偿的非接触原位校准原子力显微镜 - 通过在亚原子横向分辨率下的直接力测量在电子轨道之间量化化学键
    • US08443461B2
    • 2013-05-14
    • US13227733
    • 2011-09-08
    • Frank Michael Ohnesorge
    • Frank Michael Ohnesorge
    • G01N13/16G01N13/00G01Q60/24
    • G01Q40/00
    • Interatomic forces are measured with subatomic lateral resolution by in situ calibrated non-contact and passively thermal drift compensated atomic force microscopy in aqueous or generally liquidous environment; interatomic forces acting between distinct electronic orbitals of front-most tip atom and opposing sample atom can be quantitatively measured with subatomic lateral resolution. Calibration standard is a CaCO3-crystal, which undergoes a well defined pressure induced phase transition from the calcite to the aragonite crystal lattice structure providing an accurate independent force anchor point for the AFM's force versus distance curve. Furthermore, an independent actual tip-sample-distance d calibration is obtained by directly observing oscillatory (steric) solvation forces originating simply from packing effects of the liquid particles at very small tip-sample separations d.Key to achieving this extreme sensitivity is operating the AFM in the simple variable deflection mode in the non-contact regime while specific mechanical instrumental design minimizes thermal drifts.
    • 原子力通过原位校准的非接触和被动热漂移补偿原子力显微镜在水性或一般液态环境中用亚原子横向分辨率测量; 可以用亚原子横向分辨率定量测量在最前端原子和相对样品原子的不同电子轨道之间作用的原子间力。 校准标准是CaCO 3 - 晶体,其经历了从方解石到霰石晶格结构的良好定义的压力诱导相变,为AFM力与距离曲线提供了精确的独立力锚定点。 此外,通过直接观察源自液体颗粒的非常小的尖端样品分离d的填充效应的振荡(空间)溶剂化力,获得独立的实际尖端样品距离d校准。 实现这种极端灵敏度的关键是在非接触式方式下以简单的可变偏转模式操作AFM,而特定的机械仪器设计可最大限度地减少热漂移。
    • 5. 发明申请
    • CANTILEVER DEVICE AND CANTILEVER CONTROLLING METHOD
    • CANTILEVER设备和CANTILEVER控制方法
    • US20090293161A1
    • 2009-11-26
    • US12274511
    • 2008-11-20
    • Masaharu KurodaKentaro NishimuraTakashi SomeyaHiroshi Yabuno
    • Masaharu KurodaKentaro NishimuraTakashi SomeyaHiroshi Yabuno
    • G01N13/16G12B21/08
    • G01Q10/065Y10S977/863
    • The amplitude control of a cantilever based on the van der Pol model is performed through a feedback using the measurement data on a deflection of the cantilever. A self-oscillating circuit integrates a deflection angle signal of a cantilever detected by a deflection angle measuring mechanism using an integrator, multiplies a resulting integral value by linear feedback gain Klin generated by a gain generator, and an output corresponding to the linear feedback signal is generated. Also, the self-oscillating circuit cubes the deflection angle signal using analog multipliers, integrates the resulting values using integrators, multiplies the resulting integral values by a nonlinear feedback gain Knon generated by a gain generator, and an output corresponding to the nonlinear feedback signal is generated. Furthermore, the self-oscillating circuit 40 adds the outputs together using an adder, and a voltage signal VC for a piezo element is generated.
    • 基于范德波尔模型的悬臂的幅度控制通过使用悬臂偏转测量数据的反馈进行。 自振荡电路使用积分器将由偏转角测量机构检测到的悬臂的偏转角信号进行积分,将由积分器生成的线性反馈增益Klin的积分值乘以与线性反馈信号相对应的输出, 生成。 此外,自振荡电路使用模拟乘法器对偏转角信号进行立方体,使用积分器对结果值进行积分,将得到的积分值乘以由增益发生器产生的非线性反馈增益Knon,对应于非线性反馈信号的输出为 生成。 此外,自振荡电路40使用加法器将输出相加,产生用于压电元件的电压信号VC。
    • 6. 发明授权
    • Factory-alignable compact cantilever probe
    • 工厂可对齐的紧凑型悬臂式探头
    • US07607344B2
    • 2009-10-27
    • US11789044
    • 2007-04-23
    • Frederick Sachs
    • Frederick Sachs
    • G01B5/28G01N13/16
    • G01Q10/04G01Q20/02G01Q60/38
    • A scanner which includes a gradient index lens for passing and focusing beams from a radiation emitter to a cantilevered member reflective surface of a probe and from the reflective surface to a radiation detector. The lens also serves as a mechanical support for attachment of the radiation emitter and the radiation detector and is also attached to a support for the cantilevered member. The resulting fixed positions of the radiation emitter and the radiation detector relative to the reflective cantilevered member surface allows the scanner to be compact and factory focally alignable.
    • 一种扫描仪,其包括用于将来自辐射发射器的光束传递到聚焦到探针的悬臂构件反射表面并且从反射表面到辐射探测器的梯度折射率透镜。 透镜还用作用于附接辐射发射器和辐射探测器的机械支撑件,并且还附接到用于悬臂构件的支撑件。 辐射发射器和辐射检测器相对于反射悬臂构件表面的最终固定位置允许扫描仪紧凑并且工厂可以对准。
    • 7. 发明授权
    • Method and apparatus for obtaining quantitative measurements using a probe based instrument
    • 用于使用基于探针的仪器获得定量测量的方法和装置
    • US07596990B2
    • 2009-10-06
    • US11106366
    • 2005-04-14
    • Chanmin SuNghi PhanCraig Prater
    • Chanmin SuNghi PhanCraig Prater
    • G01B5/28G01N13/16
    • G01Q10/065G01Q60/366
    • A cantilever probe-based instrument is controlled to counteract the lateral loads imposed on the probe as a result of probe sample interaction. The probe preferably includes an active cantilever, such as a so-called bimorph cantilever. Force counteraction is preferably achieved by monitoring a lateral force-dependent property of probe operation such as cantilever free end deflection angle and applying a voltage to at least one of the cantilever and one or more separate actuators under feedback to maintain that property constant as the probe-sample spacing decreases. The probe could further uses at least one of contact flexural and torsional resonances characteristics to determine contact and release points. With the knowledge of the tip profile, quantitative mechanical data for probe sample interaction can be obtained.
    • 控制基于探针的悬臂式仪器是为了抵消由于探针样品相互作用而对探针施加的横向载荷。 探针优选地包括主动悬臂,例如所谓的双压电晶片悬臂。 优选地通过监测探针操作的横向力相关性质(例如悬臂自由端偏转角)来实现力抵抗,并且在反馈下向悬臂和一个或多个单独的致动器中的至少一个施加电压以保持该特性作为探针 样品间距减小。 探头可以进一步使用接触弯曲和扭转共振特性中的至少一个来确定接触点和释放点。 通过对尖端特征的了解,可以获得探针样品相互作用的定量机械数据。