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    • 1. 发明授权
    • Stress-based sensor, method, and applications
    • 基于应力的传感器,方法和应用
    • US09562888B2
    • 2017-02-07
    • US13637861
    • 2011-03-31
    • Jeevak M. ParpiaHarold G. CraigheadDarren R. SouthworthLeon M. Bellan
    • Jeevak M. ParpiaHarold G. CraigheadDarren R. SouthworthLeon M. Bellan
    • G01N33/497G01N29/02
    • G01N33/497G01N29/022
    • A composite, analyte sensor includes a substrate; a micro- or nano-electro-mechanical (MEMS; NEMS) resonator that is coupled to the substrate at least two edge locations (i.e., it is at least doubly-clamped) of the resonator, wherein the resonator is in a statically-buckled state near a buckling transition point of the resonator; and a chemically-responsive substance covering at least a portion of the surface of the resonator that will undergo a conformational change upon exposure to a given analyte. The resonator may be a double-clamped, statically-buckled beam (or bridge), a multiply-clamped, statically-buckled dome (or crater), or other resonator geometry. The sensor may include two or more at least double-clamped, statically-buckled, composite MEMS or NEMS resonators each operating near a buckling transition point of the respective resonator, and each characterized by a different resonant frequency. A method for sensing an analyte in ambient air.
    • 复合分析物传感器包括基底; 谐振器的至少两个边缘位置(即,它至少被双钳位)耦合到衬底的微机械或纳米机电(MEMS; NEMS)谐振器,其中所述谐振器处于静态弯曲 在谐振器的屈曲转变点附近; 以及覆盖谐振器表面的至少一部分的化学响应物质,其在暴露于给定的分析物时将经历构象变化。 谐振器可以是双夹紧,静态弯曲梁(或桥),多夹紧,静态弯曲的圆顶(或火山口)或其他谐振器几何形状。 传感器可以包括两个或更多个至少双夹紧,静态弯曲的复合MEMS或NEMS谐振器,每个谐振器在相应谐振器的屈曲转变点附近操作,并且每个谐振器的特征在于不同的谐振频率。 用于感测环境空气中的分析物的方法。
    • 2. 发明申请
    • STRESS-BASED SENSOR, METHOD, AND APPLICATIONS
    • 基于应力的传感器,方法和应用
    • US20130118228A1
    • 2013-05-16
    • US13637861
    • 2011-03-31
    • Jeevak M. ParpiaHarold G. CraigheadDarren R. SouthworthLeon M. Bellan
    • Jeevak M. ParpiaHarold G. CraigheadDarren R. SouthworthLeon M. Bellan
    • G01N33/497
    • G01N33/497G01N29/022
    • A composite, analyte sensor includes a substrate; a micro- or nano-electro-mechanical (MEMS; NEMS) resonator that is coupled to the substrate at least two edge locations (i.e., it is at least doubly-clamped) of the resonator, wherein the resonator is in a statically-buckled state near a buckling transition point of the resonator; and a chemically-responsive substance covering at least a portion of the surface of the resonator that will undergo a conformational change upon exposure to a given analyte. The resonator may be a double-clamped, statically-buckled beam (or bridge), a multiply-clamped, statically-buckled dome (or crater), or other resonator geometry. The sensor may include two or more at least double-clamped, statically-buckled, composite MEMS or NEMS resonators each operating near a buckling transition point of the respective resonator, and each characterized by a different resonant frequency. A method for sensing an analyte in ambient air.
    • 复合分析物传感器包括基底; 谐振器的至少两个边缘位置(即,它至少被双钳位)耦合到衬底的微机械或纳米机电(MEMS; NEMS)谐振器,其中所述谐振器处于静态弯曲 在谐振器的屈曲转变点附近; 以及覆盖谐振器表面的至少一部分的化学响应物质,其在暴露于给定的分析物时将经历构象变化。 谐振器可以是双夹紧,静态弯曲梁(或桥),多夹紧,静态弯曲的圆顶(或火山口)或其他谐振器几何形状。 传感器可以包括两个或更多个至少双夹紧,静态弯曲的复合MEMS或NEMS谐振器,每个谐振器在相应谐振器的屈曲转变点附近操作,并且每个谐振器的特征在于不同的谐振频率。 用于感测环境空气中的分析物的方法。
    • 5. 发明授权
    • MEMS controlled oscillator
    • MEMS控制振荡器
    • US08049580B2
    • 2011-11-01
    • US12938126
    • 2010-11-02
    • Robert B. ReichenbachKeith AubinMaxim ZalalutdinovJeevak M. ParpiaHarold G. Craighead
    • Robert B. ReichenbachKeith AubinMaxim ZalalutdinovJeevak M. ParpiaHarold G. Craighead
    • H03H9/00H01P7/00
    • H03H9/02401G01S7/032H01Q3/26H03H3/0072H03H9/2436
    • An array of micromechanical oscillators have different resonant frequencies based on their geometries. In one embodiment, a micromechanical oscillator has a resonant frequency defined by an effective spring constant that is modified by application of heat. In one embodiment, the oscillator is disc of material supported by a pillar of much smaller diameter than the disc. The periphery of the disc is heated to modify the resonant frequency (or equivalently the spring constant or stiffness) of the disc. Continuous control of the output phase and frequency may be achieved when the oscillator becomes synchronized with an imposed sinusoidal force of close frequency. The oscillator frequency can be detuned to produce an easily controlled phase differential between the injected signal and the oscillator feedback. A phased array radar may be produced using independent phase controllable oscillators.
    • 微机械振荡器阵列根据其几何形状具有不同的谐振频率。 在一个实施例中,微机械振荡器具有由通过施加热来修改的有效弹簧常数限定的谐振频率。 在一个实施例中,振荡器是由比该盘小得多的直径支柱支撑的材料盘。 加热盘的周边以改变盘的共振频率(或等效地为弹簧常数或刚度)。 当振荡器与施加的接近频率的正弦力同步时,可以实现输出相位和频率的连续控制。 振荡器频率可以失谐,以在注入的信号和振荡器反馈之间产生容易控制的相位差。 可以使用独立的相位可控振荡器来产生相控阵雷达。
    • 7. 发明授权
    • MEMS controlled oscillator
    • MEMS控制振荡器
    • US07843283B2
    • 2010-11-30
    • US11598097
    • 2006-11-09
    • Robert B. ReichenbachKeith AubinMaxim ZalalutdinovJeevak M. ParpiaHarold G. Craighead
    • Robert B. ReichenbachKeith AubinMaxim ZalalutdinovJeevak M. ParpiaHarold G. Craighead
    • H03H9/00H01P7/00
    • H03H9/02401G01S7/032H01Q3/26H03H3/0072H03H9/2436
    • An array of micromechanical oscillators have different resonant frequencies based on their geometries. In one embodiment, a micromechanical oscillator has a resonant frequency defined by an effective spring constant that is modified by application of heat. In one embodiment, the oscillator is disc of material supported by a pillar of much smaller diameter than the disc. The periphery of the disc is heated to modify the resonant frequency (or equivalently the spring constant or stiffness) of the disc. Continuous control of the output phase and frequency may be achieved when the oscillator becomes synchronized with an imposed sinusoidal force of close frequency. The oscillator frequency can be detuned to produce an easily controlled phase differential between the injected signal and the oscillator feedback. A phased array radar may be produced using independent phase controllable oscillators.
    • 微机械振荡器阵列根据其几何形状具有不同的谐振频率。 在一个实施例中,微机械振荡器具有由通过施加热来修改的有效弹簧常数限定的谐振频率。 在一个实施例中,振荡器是由比该盘小得多的直径支柱支撑的材料盘。 加热盘的周边以改变盘的共振频率(或等效地为弹簧常数或刚度)。 当振荡器与施加的接近频率的正弦力同步时,可以实现输出相位和频率的连续控制。 振荡器频率可以失谐,以在注入的信号和振荡器反馈之间产生容易控制的相位差。 可以使用独立的相位可控振荡器来产生相控阵雷达。