公开(公告)号：US20070279640A1

公开(公告)日：2007-12-06

申请号：US11421593

申请日：2006-06-01

Applicant: Dustin Wade Carr ,  James Gilbert Helm

Inventor： Dustin Wade Carr ,  James Gilbert Helm

IPC: G01B9/02

CPC classification number: G01B11/02 ,  G01B9/02004 ,  G01B2290/25 ,  G01D5/266 ,  G01H9/00 ,  G01L9/0079 ,  H04R23/008 ,  H04R25/554

Abstract: An apparatus and method for detecting multiple beams from a beamsplitter is disclosed. Some embodiments of the present invention are particularly well-suited for use in microphones, high-sensitivity pressure sensors, vibration sensors, and accelerometer applications. Some embodiments of the present invention generate a differential electrical output signal that is based on multiple detected optical signals. The differential output signal is generated in response to an environmental stimulus, such as a pressure differential or incident acoustic energy. In accordance with the illustrative embodiment, an optical displacement sensor redirects the transmitted beam back through the optically-resonant cavity with an angular offset. Due to the angular offset, the redirected beam (i.e., retransmitted beam) transits the cavity with an intra-cavity path length that corresponds to substantially full transmittance of the retransmitted beam in the absence of the environmental stimulus.

Abstract translation: 公开了一种从分束器检测多个光束的装置和方法。 本发明的一些实施例特别适用于麦克风，高灵敏度压力传感器，振动传感器和加速度计应用。 本发明的一些实施例产生基于多个检测到的光信号的差分电输出信号。 差分输出信号是响应于诸如压力差或入射声能的环境刺激而产生的。 根据说明性实施例，光学位移传感器通过光学谐振腔将角度偏移重定向到透射光束。 由于角度偏移，重定向的波束（即，重新发射的波束）以在没有环境刺激的情况下对应于重发波束的基本上完全透射率的腔内路径长度来转移空腔。

公开(公告)号：US08730484B2

公开(公告)日：2014-05-20

申请号：US13340934

申请日：2011-12-30

Applicant: Dustin Wade Carr ,  Gregory Robert Bogart

Inventor： Dustin Wade Carr ,  Gregory Robert Bogart

IPC: G01B9/02

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。

公开(公告)号：US20110098950A1

公开(公告)日：2011-04-28

申请号：US12913620

申请日：2010-10-27

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G06F15/00

CPC classification number: G01H3/00

Abstract: Embodiments of infrasound sensors comprising multiple matched-responsivity pressure sensors are presented. Infrasound sensors in accordance with the present invention have limited volume, which enables them to observe wind velocity at the same point that infrasound is monitored. The small size and matched-responsivities enable infrasound sensors in accordance with the present invention to obviate the need for complex and costly spatial filters that degrade the signal-to-noise ratio of prior-art infrasound sensors.

Abstract translation: 提出了包含多个匹配响应压力传感器的次声传感器的实施例。 根据本发明的次声传感器具有有限的体积，这使得它们能够在监视次声的同一点观察风速。 小尺寸和匹配响应能够使根据本发明的次声传感器消除对降低现有技术次声传感器的信噪比的复杂和昂贵的空间滤波器的需要。

公开(公告)号：US20090109423A1

公开(公告)日：2009-04-30

申请号：US11927234

申请日：2007-10-29

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G01N21/00

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。

公开(公告)号：US20080291457A1

公开(公告)日：2008-11-27

申请号：US12122342

申请日：2008-05-16

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G01B9/02 ,  G02B27/00

CPC classification number: G01B9/02023 ,  G01B9/02022 ,  G01B2290/25 ,  G01D5/266 ,  G01D5/30 ,  G01L9/0079 ,  G01P15/093 ,  H04R23/008 ,  H04R2410/00

Abstract: An optical displacement sensor for sensing an environmental stimulus is disclosed. The optical displacement sensor exhibits an optical design that has suppressed back reflection and improved alignment tolerance between its optical components. The sensor is based on an optically resonant cavity whose cavity length is affected by the environmental stimulus. An embodiment of the present invention utilizes a lens to redirect a first light signal toward an optically resonant cavity such that the light is incident on the cavity at a non-normal angle of incidence.

Abstract translation: 公开了一种用于感测环境刺激的光学位​​移传感器。 光学位移传感器表现出光学设计，其抑制了反射和改善其光学部件之间的对准公差。 传感器基于光学谐振腔，其腔长受环境刺激的影响。 本发明的实施例利用透镜将第一光信号重定向到光学谐振腔，使得光以非正常的入射角入射到空腔上。

公开(公告)号：US20080163686A1

公开(公告)日：2008-07-10

申请号：US12051647

申请日：2008-03-19

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G01P15/08 ,  G01B9/02

CPC classification number: G01B9/02023 ,  G01B9/02022 ,  G01B2290/25 ,  G01L9/0079 ,  H04R23/008

Abstract: An accelerometer based on an optical displacement sensor is disclosed. An embodiment of the present invention directs a light beam toward an optically resonant cavity and detects both the reflected and transmitted optical beams that result from interaction with the optically resonant cavity. The optically resonant cavity has a cavity length that is based on the position of a proof mass that moves in response to an acceleration.

Abstract translation: 公开了一种基于光学位移传感器的加速度计。 本发明的实施例将光束引导到光学谐振腔并且检测由与光学谐振腔的相互作用产生的反射和透射的光束。 光学谐振腔具有基于响应于加速度而移动的检验质量块的位置的腔体长度。

公开(公告)号：US07173764B2

公开(公告)日：2007-02-06

申请号：US10829782

申请日：2004-04-22

Applicant: Dustin Wade Carr ,  Gregory Robert Bogart

Inventor： Dustin Wade Carr ,  Gregory Robert Bogart

IPC: G02B5/18

CPC classification number: G02B5/1828 ,  G02B26/0808

Abstract: A tunable nanomechanical near-field grating is disclosed which is capable of varying the intensity of a diffraction mode of an optical output signal. The tunable nanomechanical near-field grating includes two sub-gratings each having line-elements with width and thickness less than the operating wavelength of light with which the grating interacts. Lateral apertures in the two sub-gratings are formed from the space between one line-element of the first sub-grating and at least one line-element of the second sub-grating. One of the sub-gratings is capable of motion such that at least one of aperture width and aperture depth changes, causing a perturbation to the near-field intensity distribution of the tunable nanomechanical near-field grating and a corresponding change to the far-field emission of thereof.

Abstract translation: 公开了可调谐的纳米机械近场光栅，其可以改变光输出信号的衍射模式的强度。 可调谐纳米机械近场光栅包括两个子光栅，每个子光栅具有宽度和厚度小于光栅相互作用的光的工作波长的线元件。 两个子光栅中的侧孔由第一子光栅的一个线元件与第二子光栅的至少一个线元件之间的空间形成。 子光栅中的一个能够运动，使得孔径宽度和孔径深度中的至少一个改变，导致可调谐纳米机械近场光栅的近场强度分布的扰动以及对远场的相应变化 其发射。

公开(公告)号：US20090268211A1

公开(公告)日：2009-10-29

申请号：US12428521

申请日：2009-04-23

Applicant: Dustin Wade Carr ,  Gregory Robert Bogart

Inventor： Dustin Wade Carr ,  Gregory Robert Bogart

IPC: G01B11/02

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。

公开(公告)号：US20090235740A1

公开(公告)日：2009-09-24

申请号：US12405431

申请日：2009-03-17

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G01V7/00 ,  G01B9/02

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。

公开(公告)号：US07554674B2

公开(公告)日：2009-06-30

申请号：US12122342

申请日：2008-05-16

Applicant: Dustin Wade Carr

Inventor： Dustin Wade Carr

IPC: G01B9/02 ,  G01L1/24

CPC classification number: G01B9/02023 ,  G01B9/02022 ,  G01B2290/25 ,  G01D5/266 ,  G01D5/30 ,  G01L9/0079 ,  G01P15/093 ,  H04R23/008 ,  H04R2410/00

Abstract: An optical displacement sensor for sensing an environmental stimulus is disclosed. The optical displacement sensor exhibits an optical design that has suppressed back reflection and improved alignment tolerance between its optical components. The sensor is based on an optically resonant cavity whose cavity length is affected by the environmental stimulus. An embodiment of the present invention utilizes a lens to redirect a first light signal toward an optically resonant cavity such that the light is incident on the cavity at a non-normal angle of incidence.

Abstract translation: 公开了一种用于感测环境刺激的光学位​​移传感器。 光学位移传感器表现出光学设计，其抑制了反射和改善其光学部件之间的对准公差。 传感器基于光学谐振腔，其腔长受环境刺激的影响。 本发明的实施例利用透镜将第一光信号重定向到光学谐振腔，使得光以非正常的入射角入射到空腔上。