Dynamic power control, beam alignment and focus for nanoscale spectroscopy
    1.
    发明授权
    Dynamic power control, beam alignment and focus for nanoscale spectroscopy 有权
    动态功率控制,光束对准和聚焦纳米级光谱

    公开(公告)号:US08242448B2

    公开(公告)日:2012-08-14

    申请号:US12927248

    申请日:2010-11-09

    IPC分类号: G01J5/00

    CPC分类号: G01N21/3563 G01Q30/02

    摘要: Dynamic IR radiation power control, beam steering and focus adjustment for use in a nanoscale IR spectroscopy system based on an Atomic Force Microscope. During illumination with a beam from an IR source, an AFM probe tip interaction with a sample due to local IR sample absorption is monitored. The power of the illumination at the sample is dynamically decreased to minimize sample overheating in locations/wavelengths where absorption is high and increased in locations/wavelengths where absorption is low to maintain signal to noise. Beam alignment and focus optimization as a function of wavelength are automatically performed.

    摘要翻译: 动态IR辐射功率控制,光束转向和聚焦调整,用于基于原子力显微镜的纳米级红外光谱系统。 在用来自IR源的光照射期间,监测由于局部IR样品吸收而导致AFM探针尖端与样品的相互作用。 动态地降低样品照度的功率,以使吸收率高的位置/波长处的样品过热度最小化,吸收低的位置/波长增加,以保持信噪比。 自动执行光束对准和聚焦优化作为波长的函数。

    Dynamic power control, beam alignment and focus for nanoscale spectroscopy
    2.
    发明申请
    Dynamic power control, beam alignment and focus for nanoscale spectroscopy 有权
    动态功率控制,光束对准和聚焦纳米级光谱

    公开(公告)号:US20110205527A1

    公开(公告)日:2011-08-25

    申请号:US12927248

    申请日:2010-11-09

    IPC分类号: G01N21/35

    CPC分类号: G01N21/3563 G01Q30/02

    摘要: Dynamic IR radiation power control, beam steering and focus adjustment for use in a nanoscale IR spectroscopy system based on an Atomic Force Microscope. During illumination with a beam from an IR source, an AFM probe tip interaction with a sample due to local IR sample absorption is monitored. The power of the illumination at the sample is dynamically decreased to minimize sample overheating in locations/wavelengths where absorption is high and increased in locations/wavelengths where absorption is low to maintain signal to noise. Beam alignment and focus optimization as a function of wavelength are automatically performed.

    摘要翻译: 动态IR辐射功率控制,光束转向和聚焦调整,用于基于原子力显微镜的纳米级红外光谱系统。 在用来自IR源的光照射期间,监测由于局部IR样品吸收而导致AFM探针尖端与样品的相互作用。 动态地降低样品照度的功率,以使吸收率高的位置/波长处的样品过热度最小化,吸收低的位置/波长增加,以保持信噪比。 自动执行光束对准和聚焦优化作为波长的函数。

    SYSTEM FOR DETECTING AND COMPENSATING FOR AERODYNAMIC INSTABILITIES IN TURBO-JET ENGINES
    6.
    发明申请
    SYSTEM FOR DETECTING AND COMPENSATING FOR AERODYNAMIC INSTABILITIES IN TURBO-JET ENGINES 有权
    用于涡轮喷气发动机的气动性不稳定性检测和补偿系统

    公开(公告)号:US20060288703A1

    公开(公告)日:2006-12-28

    申请号:US11023035

    申请日:2004-12-23

    IPC分类号: F02C7/00

    摘要: The present invention relates to a system for detecting aerodynamic instabilities in a jet turbine engine having a pressure transducer mounted in the engine. The pressure transducer, welded to a circuit in signal communication with a controller, is adapted to send measured pressure readings from air in a combustion chamber to the controller. The controller, located in spaced apart relation from the engine, is adapted by software to detect pressure patterns from the pressure signals generated by the transducer that are indicative of a stall or surge. A series of fuel and air valves located with compression and combustion chambers of the engine are in signal communication with the controller. The controller in response to detecting pressure signals indicating a stall or surge is operative to signals in the valves to change the air flow, air angle, fuel flow or speed to reduce the possibility of a stall or surge.

    摘要翻译: 本发明涉及一种用于检测具有安装在发动机中的压力传感器的喷气涡轮发动机中的空气动力学不稳定性的系统。 焊接到与控制器进行信号通信的电路的压力传感器适于将测量的压力读数从燃烧室中的空气发送到控制器。 与发动机间隔开的关系的控制器通过软件进行调节,以检测由换能器产生的指示失速或喘振的压力信号的压力模式。 位于发动机的压缩和燃烧室的一系列燃料和空气阀与控制器信号通信。 响应于检测到指示失速或喘振的压力信号,控制器可操作以在阀中发出信号以改变空气流量,气流角度,燃料流量或速度,以减少失速或喘振的可能性。

    Resonating transducer
    7.
    发明申请
    Resonating transducer 有权
    谐振换能器

    公开(公告)号:US20060150740A1

    公开(公告)日:2006-07-13

    申请号:US11030858

    申请日:2005-01-07

    申请人: Anthony Kurtz

    发明人: Anthony Kurtz

    IPC分类号: G01L11/00

    CPC分类号: G01L9/0016

    摘要: A resonating pressure transducer operable to measure an applied pressure by measuring changes in a resonant frequency is disclosed. The pressure transducer comprises a plurality of diaphragms formed in a wafer of semi-conducting material between two layers, wherein each of the diaphragms is divided into a plurality of electrically isolated sections; a cavity in one of the covering layers opposite a corresponding one of the diaphragms, a first via formed through a selected one of the layers enables application of a potential to selected ones of the diaphragm sections; and a second via formed through a selected one of the layers enables transmission of a measure from selected ones of the diaphragm sections.

    摘要翻译: 公开了一种谐振压力传感器,其可操作以通过测量谐振频率的变化来测量施加的压力。 压力传感器包括形成在两层之间的半导体材料晶片中的多个隔膜,其中每个隔膜被分成多个电隔离部分; 与相应的一个膜片相对的一个覆盖层中的一个空腔,通过所选择的一个层形成的第一通孔使得能够对所选择的隔膜部分施加电位; 并且通过所选择的一个层形成的第二通孔使得能够从所选择的膜片部分中传输测量值。

    System and method for determining flow characteristics
    9.
    发明申请
    System and method for determining flow characteristics 有权
    用于确定流量特性的系统和方法

    公开(公告)号:US20060060001A1

    公开(公告)日:2006-03-23

    申请号:US11009561

    申请日:2004-12-10

    IPC分类号: G01F1/46

    CPC分类号: G01F1/46

    摘要: A fluid flow probe including: first, second and third pressure sensors; a first port for communicating a first pressure to the first pressure sensor; a second port for communicating a second pressure to the second pressure sensor, the second port being substantially oppositely disposed with respect to the first port, a third pressure port suitable for communicating a static pressure to the third pressure sensor; first and second outputs electrically coupled to the first and second pressure sensors, respectively, one of the first and second outputs indicative of a total pressure and the other of the outputs indicative of a base pressure; and, a third output electrically coupled to the third pressure sensor and indicative of the static pressure.

    摘要翻译: 一种流体流动探针,包括:第一,第二和第三压力传感器; 用于将第一压力传送到第一压力传感器的第一端口; 第二端口,用于将第二压力传递到第二压力传感器,第二端口相对于第一端口基本上相对设置;适于将静压连通到第三压力传感器的第三压力端口; 第一和第二输出分别电耦合到第一和第二压力传感器,第一和第二输出中的一个指示总压力,另一个输出指示基本压力; 以及电连接到第三压力传感器并指示静压力的第三输出。

    Method of joining a pressure sensor header with an associated transducer element
    10.
    发明申请
    Method of joining a pressure sensor header with an associated transducer element 有权
    将压力传感器接头连接到相关联的换能器元件的方法

    公开(公告)号:US20050248434A1

    公开(公告)日:2005-11-10

    申请号:US11036877

    申请日:2005-01-14

    IPC分类号: G01L7/08 G01L9/00 H01C10/10

    摘要: A pressure transducer assembly including: a pressure sensor header; a transducer assembly member; and a joining arrangement disposed at an interface of the header and the transducer assembly member, for joining the header with the transducer assembly member, the joining arrangement including: a recessed female joining element formed in one of the header and the transducer assembly member; and a protruding male joining element formed on the other of the header and the transducer assembly member, the male joining element received in the female joining element.

    摘要翻译: 一种压力传感器组件,包括:压力传感器头部; 换能器组件; 以及连接装置,其布置在所述集管和所述换能器组件构件的界面处,用于将所述集管与所述换能器组件构件接合,所述接合装置包括:形成在所述集管和所述换能器组件中的一个中的凹形阴连接元件; 以及形成在集管和换能器组件构件中的另一个上的突出的阳连接元件,阳接合元件容纳在阴连接元件中。