Optical Interferometric Sensor
    1.
    发明申请
    Optical Interferometric Sensor 有权
    光学干涉传感器

    公开(公告)号:US20120099114A1

    公开(公告)日:2012-04-26

    申请号:US13340934

    申请日:2011-12-30

    CPC classification number: G01P15/093 G01H9/00

    Abstract: Embodiments of environmental stimulus sensors comprising multiple sources and detectors for interrogating one or more optically resonant cavities that are responsive to one or more environmental stimuli are disclosed. Such sensors have, among other advantages, improved immunity to source and/or detector noise.

    Abstract translation: 公开了包括用于询问响应于一个或多个环境刺激的一个或多个光学谐振腔的多个源和检测器的环境刺激传感器的实施例。 除此之外,这样的传感器具有改善对源和/或检测器噪声的免疫性。

    Optical displacement sensor comprising a wavelength-tunable optical source
    2.
    发明授权
    Optical displacement sensor comprising a wavelength-tunable optical source 有权
    光学位移传感器,包括波长可调光源

    公开(公告)号:US07495775B2

    公开(公告)日:2009-02-24

    申请号:US12030033

    申请日:2008-02-12

    Inventor: Dustin Wade Carr

    CPC classification number: H04R23/008 G01L9/0079 H04R25/505

    Abstract: An optical displacement sensor is disclosed that provides a optical displacement sensor that includes a optically-resonant cavity tuned to an operating wavelength without some of the disadvantages for doing so in the prior art. An embodiment of the present invention tunes an operating wavelength used with a Fabry-Perot interferometer to develop a desired relationship between the wavelength and the Fabry-Perot interferometer's initial cavity length.

    Abstract translation: 公开了一种光学位移传感器,其提供光学位移传感器,该光学位移传感器包括调谐到工作波长的光学谐振腔,而没有在现有技术中这样做的一些缺点。 本发明的一个实施例调整了与法布里 - 珀罗干涉仪一起使用的工作波长,以便在波长与法布里 - 珀罗干涉仪的初始腔体长度之间形成期望的关系。

    Optical displacement sensor comprising a wavelength-tunable optical source
    3.
    发明授权
    Optical displacement sensor comprising a wavelength-tunable optical source 有权
    光学位移传感器,包括波长可调光源

    公开(公告)号:US07359067B2

    公开(公告)日:2008-04-15

    申请号:US11278990

    申请日:2006-04-07

    Inventor: Dustin Wade Carr

    CPC classification number: H04R23/008 G01L9/0079 H04R25/505

    Abstract: An optical displacement sensor is disclosed that provides a optical displacement sensor that includes a optically-resonant cavity tuned to an operating wavelength without some of the disadvantages for doing so in the prior art. An embodiment of the present invention tunes an operating wavelength used with a Fabry-Perot interferometer to develop a desired relationship between the wavelength and the Fabry-Perot interferometer's initial cavity length.

    Abstract translation: 公开了一种光学位移传感器,其提供光学位移传感器,该光学位移传感器包括调谐到工作波长的光学谐振腔,而没有在现有技术中这样做的一些缺点。 本发明的一个实施例调整了与法布里 - 珀罗干涉仪一起使用的工作波长,以便在波长与法布里 - 珀罗干涉仪的初始腔体长度之间形成期望的关系。

    Apparatus comprising a high-signal-to-noise displacement sensor and method therefore
    4.
    发明授权
    Apparatus comprising a high-signal-to-noise displacement sensor and method therefore 有权
    因此,包括高信噪比位移传感器和方法的装置

    公开(公告)号:US07355723B2

    公开(公告)日:2008-04-08

    申请号:US11366730

    申请日:2006-03-02

    Inventor: Dustin Wade Carr

    CPC classification number: H04R23/008 G01H9/006 G01L9/0079

    Abstract: An optical displacement sensor is disclosed that provides a high signal-to-noise ratio output signal without some of the disadvantages for doing so in the prior art. An embodiment of the present invention directs a light beam toward a Fabry-Perot interferometer and detects both the reflected and transmitted optical beams that result from interaction with the Fabry-Perot interferometer. Signal processing techniques are applied to signals based on both the reflected and transmitted beams, resulting in higher signal strength and/or reduced noise in the resulting output signal.

    Abstract translation: 公开了一种光学位移传感器,其提供高信噪比输出信号,而没有在现有技术中这样做的一些缺点。 本发明的一个实施例将光束引向法布里 - 珀罗干涉仪,并检测由与法布里 - 珀罗干涉仪相互作用而产生的反射和透射的光束。 信号处理技术被应用于基于反射和发射波束的信号,从而在所得到的输出信号中产生更高的信号强度和/或降低的噪声。

    Apparatus Comprising a Directionality-Enhanced Acoustic Sensor
    5.
    发明申请
    Apparatus Comprising a Directionality-Enhanced Acoustic Sensor 失效
    包括方向性增强型声学传感器的装置

    公开(公告)号:US20080025545A1

    公开(公告)日:2008-01-31

    申请号:US11460626

    申请日:2006-07-28

    Inventor: Dustin Wade Carr

    CPC classification number: H04R1/406

    Abstract: An apparatus and method for discriminating a directional component of a propagating pressure wave using an array of operatively-coupled displacement sensors are disclosed. In accordance with the illustrative embodiment, each displacement sensor in the array comprises two parallel layers, at least one of which is movable. The output signal of each displacement sensor is based on the separation of the layers. The displacement sensors are operatively-coupled through a compressible fluid such that the response of one of the sensors to an input can cause an output signal in at least one of the other sensors. The operative-coupling of the displacement sensors amplifies relative phase information between their respective output signals, which results in improved directionality. Some embodiments of the present invention are particularly well-suited for use in microphones.

    Abstract translation: 公开了一种用于使用可操作地耦合的位移传感器的阵列来识别传播压力波的方向分量的装置和方法。 根据说明性实施例,阵列中的每个位移传感器包括两个平行的层,其中至少一个是可移动的。 每个位移传感器的输出信号基于层的分离。 位移传感器通过可压缩流体可操作地耦合,使得传感器之一对输入的响应可以在至少一个其它传感器中产生输出信号。 位移传感器的操作耦合放大了它们各自输出信号之间的相对相位信息,这导致改进的方向性。 本发明的一些实施例特别适用于麦克风。

    Gravity gradient sensor
    6.
    发明授权
    Gravity gradient sensor 有权
    重力梯度传感器

    公开(公告)号:US08387456B2

    公开(公告)日:2013-03-05

    申请号:US12405431

    申请日:2009-03-17

    Inventor: Dustin Wade Carr

    CPC classification number: G01V7/00

    Abstract: A gravimeter for detecting a gravity difference between two points is disclosed. The gravimeter comprises an interferometric arrangement wherein the length of a reference arm is dependent upon the gravity local to a first accelerometer and the length of a sample arm is dependent upon the gravity local to a second accelerometer. A pair of photodetectors that operate in complimentary fashion provide electrical signals based on a first signal conveyed by the reference arm and a second signal conveyed by the sample arm. A change in the differential gravity between the two points induces equal and opposite changes to the magnitudes of the two electrical signals.

    Abstract translation: 公开了一种用于检测两点之间的重力差的重力计。 重力计包括干涉仪布置,其中参考臂的长度取决于第一加速度计的局部重力,并且样本臂的长度取决于第二加速度计的局部重力。 以互补方式工作的一对光电检测器基于由参考臂传送的第一信号和由采样臂传送的第二信号提供电信号。 两点之间的差分重力的变化引起两个电信号的幅度相等和相反的变化。

    Dual cavity displacement sensor
    8.
    发明授权
    Dual cavity displacement sensor 失效
    双腔位移传感器

    公开(公告)号:US07626707B2

    公开(公告)日:2009-12-01

    申请号:US11927234

    申请日:2007-10-29

    Inventor: Dustin Wade Carr

    CPC classification number: G01P15/093 G01L9/0079 H04R23/008

    Abstract: An optical displacement sensor is disclosed comprising a beam splitter having two optically coupled and mechanically coupled optically resonant cavities. The respective cavity lengths of the optically resonant cavities are functions of an environmental stimulus. By virtue of the optically coupled optically resonant cavities, the output of the beam splitter is less sensitive to input wavelength variation yet retains high sensitivity to the environmental stimulus.

    Abstract translation: 公开了一种光学位移传感器,其包括具有两个光学耦合和机械耦合的光学谐振腔的分束器。 光学谐振腔的各自的腔长度是环境刺激的功能。 由于光耦合的光学谐振腔,分束器的输出对输入波长变化较不敏感,而对环境刺激保持高灵敏度。

    Accelerometer with Enhanced DC Stability
    9.
    发明申请
    Accelerometer with Enhanced DC Stability 有权
    加速度计具有增强的直流稳定性

    公开(公告)号:US20090228235A1

    公开(公告)日:2009-09-10

    申请号:US12397680

    申请日:2009-03-04

    Inventor: Dustin Wade Carr

    CPC classification number: G01V7/00 G01P15/093 G01P15/097 G01P2015/0828

    Abstract: An accelerometer with improved immunity to sensitivity drift is disclosed. In some embodiments, the accelerometer comprises an actuator that induces a known acceleration on a reference frame. A signal based on this known acceleration is used to calibrate the accelerometer to mitigate the effects due to at least one of sensitivity drift, D.C. bias drift, sense laser wavelength drift, and resonant frequency drift.

    Abstract translation: 公开了一种具有提高的对灵敏度漂移的抗扰度的加速度计。 在一些实施例中,加速度计包括在参考系上引起已知加速度的致动器。 基于这种已知加速度的信号用于校准加速度计以减轻由于灵敏度漂移,直流偏置漂移,感测激光波长漂移和谐振频率漂移中的至少一个而引起的影响。

    Optical Displacement Sensor Comprising a Wavelength-tunable Optical Source
    10.
    发明申请
    Optical Displacement Sensor Comprising a Wavelength-tunable Optical Source 有权
    包含波长可调光源的光学位移传感器

    公开(公告)号:US20080151348A1

    公开(公告)日:2008-06-26

    申请号:US12030033

    申请日:2008-02-12

    Inventor: Dustin Wade Carr

    CPC classification number: H04R23/008 G01L9/0079 H04R25/505

    Abstract: An optical displacement sensor is disclosed that provides a optical displacement sensor that includes a optically-resonant cavity tuned to an operating wavelength without some of the disadvantages for doing so in the prior art. An embodiment of the present invention tunes an operating wavelength used with a Fabry-Perot interferometer to develop a desired relationship between the wavelength and the Fabry-Perot interferometer's initial cavity length.

    Abstract translation: 公开了一种光学位移传感器,其提供光学位移传感器,该光学位移传感器包括调谐到工作波长的光学谐振腔,而没有在现有技术中这样做的一些缺点。 本发明的一个实施例调整了与法布里 - 珀罗干涉仪一起使用的工作波长,以便在波长与法布里 - 珀罗干涉仪的初始腔体长度之间形成期望的关系。

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