Mechanical amplification of small dimensional changes using bowing
    1.
    发明授权
    Mechanical amplification of small dimensional changes using bowing 有权
    使用弯曲的小尺寸变化的机械放大

    公开(公告)号:US07707896B2

    公开(公告)日:2010-05-04

    申请号:US12014153

    申请日:2008-01-15

    申请人: James A. Kuzdrall

    发明人: James A. Kuzdrall

    IPC分类号: G01N3/20

    摘要: The method and apparatus employ a resilient element having end definition points that are constrained between stops spaced apart at a separation S. The separation S is less than a free length L between the end definition points when not constrained, causing the resilient element to bow and resulting in a displacement m of a central region of the resilient element. The displacement m changes responsive to the net change in the separation S and the free length L. When the geometry is set such that the displacement m is very small, a relatively large change in displacement m results from small net changes. The change in the displacement m can be monitored to provide a micro strain gauge. The stops can be mounted to a substrate which differs from the resilient element in its response to a selected environmental stimulus to provide a sensor for the environmental stimulus.

    摘要翻译: 该方法和装置采用弹性元件,该弹性元件具有约束在间隔S间隔开的止挡件之间的端部定义点。当不限制时,分离部分S小于端部定义点之间的自由长度L,导致弹性元件弓形 导致弹性元件的中心区域的位移m。 位移m响应于分离S和自由长度L的净变化而变化。当设置几何形状使得位移m非常小时,位移m的相对较大的变化是由于净变化的小。 可以监测位移m的变化以提供微应变计。 止动件可以安装到与弹性元件不同的基板,其响应于所选择的环境刺激,以提供用于环境刺激的传感器。

    Luminous intensity sensor element and light beam modulating method and device employing such a sensor element
    2.
    发明授权
    Luminous intensity sensor element and light beam modulating method and device employing such a sensor element 失效
    发光强度传感器元件和采用这种传感器元件的光束调制方法和装置

    公开(公告)号:US06414782B1

    公开(公告)日:2002-07-02

    申请号:US09463266

    申请日:2000-05-15

    IPC分类号: G02B2600

    CPC分类号: G02B26/02 G01J5/38

    摘要: A luminous intensity sensor element having a flat disk-shaped element (2) made of material with a high thermal expansion coefficient and of low thermal conductivity, and in turn having, on opposite faces (3, 5), an optically absorbent layer (4) and a reflecting layer (6). On receiving excitation radiation (R), the optically absorbent layer (4) is heated and transmits heat to the flat disk-shaped (2), which in turn is heated internally in spatially nonuniform manner and is deformed together with the superimposed reflecting layer (6). The reflecting layer (6) receives an incident reference layer beam (S) to generate a reflected light beam having optical characteristics (&Dgr;&phgr;) depending on the aforementioned deformation (&Dgr;d) and varying in response to the excitation radiation.

    摘要翻译: 一种发光强度传感器元件,具有由具有高热膨胀系数和低导热性的材料制成的扁平盘形元件(2),并且在相对面(3,5)上具有光学吸收层(4) )和反射层(6)。 在接收到激发辐射(R)时,光学吸收层(4)被加热并传递到扁平盘状(2)上,平板状(2)在空间不均匀的状态下被内部加热并与叠加的反射层 6)。 反射层(6)接收入射参考层光束(S),以根据上述变形(DELTAd)产生具有光学特性(DELTA))的反射光束并且响应于激发辐射而变化。

    Infrared sensors, focal plane arrays and thermal imaging systems
    6.
    发明授权
    Infrared sensors, focal plane arrays and thermal imaging systems 有权
    红外传感器,焦平面阵列和热成像系统

    公开(公告)号:US08143577B2

    公开(公告)日:2012-03-27

    申请号:US12680186

    申请日:2007-09-28

    申请人: Chongfei Shen

    发明人: Chongfei Shen

    IPC分类号: G01J5/52

    摘要: An infrared sensor and infrared imaging system, wherein said infrared sensor comprises: a first film structure, a second film structure, a gap between said first film structure and said second film structure. Reference light is incident from one of said first film structure and said second film structure. When said gap distance changes, the intensity of transmitted reference light changes, and the intensity of reflected reference light changes. When infrared light is incident, at least one of the said first and second film structures absorbs infrared light and the temperature changes, causing said gap distance to change. By detecting the intensity of said transmitted reference light or reflected reference light, the incident infrared light can be measured.

    摘要翻译: 一种红外传感器和红外成像系统,其中所述红外传感器包括:第一膜结构,第二膜结构,所述第一膜结构和所述第二膜结构之间的间隙。 参考光从所述第一膜结构和所述第二膜结构之一入射。 当间隙距离变化时,透射参考光的强度发生变化,反射参考光的强度发生变化。 当红外光入射时,所述第一和第二膜结构中的至少一个吸收红外光并且温度改变,导致所述间隙距离改变。 通过检测所述透射参考光或反射参考光的强度,可以测量入射的红外光。

    MEMS-BASED FTIR SPECTROMETER
    7.
    发明申请
    MEMS-BASED FTIR SPECTROMETER 审中-公开
    基于MEMS的FTIR光谱仪

    公开(公告)号:US20110139990A1

    公开(公告)日:2011-06-16

    申请号:US12989871

    申请日:2009-08-04

    IPC分类号: G01N21/35 G01J3/45

    摘要: A MEMS-based Fourier Transform (FT) spectrometer is provided. According to an embodiment, the MEMS-based FT spectrometer is an FT infrared (FTIR) spectrometer. The FT spectrometer can include a beam splitter positioned to receive an incoming beam from a light source and split the incoming beam into a first sub-beam and a second sub-beam, a fixed mirror positioned to receive the first sub-beam from the beam splitter, a scanning MEMS mirror positioned to receive the second sub-beam from the beam splitter, and a photodetector, wherein a reflected first sub-beam from the fixed mirror and a reflected second sub-beam from the scanning MEMS mirror recombine at the beam splitter and become directed to the photodetector. According to one embodiment, the photodetector is a MEMS-based IR detector. In addition, the MEMS-based IR detector can be an un-cooled IR detector having a capacitive sensing structure.

    摘要翻译: 提供了基于MEMS的傅里叶变换(FT)光谱仪。 根据实施例,基于MEMS的FT光谱仪是FT红外(FTIR)光谱仪。 FT分光计可以包括分束器,其被定位成接收来自光源的入射光束,并将入射光束分成第一子光束和第二子光束,固定镜定位成从光束接收第一子光束 分离器,定位成从分束器接收第二子光束的扫描MEMS镜和光电检测器,其中来自固定镜的反射的第一子光束和来自扫描MEMS镜的反射的第二子光束在光束处复合 分离器并且被引导到光电检测器。 根据一个实施例,光电检测器是基于MEMS的IR检测器。 此外,基于MEMS的IR检测器可以是具有电容感测结构的未冷却的IR检测器。

    Infrared sensor systems and devices
    8.
    发明授权
    Infrared sensor systems and devices 有权
    红外传感器系统和设备

    公开(公告)号:US07547886B2

    公开(公告)日:2009-06-16

    申请号:US11483142

    申请日:2006-07-07

    IPC分类号: G01J5/00

    CPC分类号: G01J5/38

    摘要: An organic material can be used in a modified strain gauge for IR transduction, resulting in an organic IR sensor. Infrared radiation incident on the organic material modulates a displacement of the material in order to detect the presence and intensity of IR radiation. This innovative design doesn't require cooling, and is sensitive to 9 and 3 μm—wavelengths that are emitted by mammals and forest fires, respectively. In addition, a photomechanical polymer can be used in a transistor based on a thin-film transistor (TFT), also resulting in an IR sensor. Through careful synthesis of the polymers, the photomechanical response of the transistor can be tailored to certain IR bands for detection purposes.

    摘要翻译: 有机材料可以用于改进的应变计用于IR转导,产生有机红外传感器。 入射到有机材料上的红外辐射调制材料的位移,以便检测IR辐射的存在和强度。 这种创新设计不需要冷却,并且分别对哺乳动物和森林火灾发射的9和3个母体波长敏感。 此外,光电机械聚合物可以用于基于薄膜晶体管(TFT)的晶体管中,并且还产生IR传感器。 通过仔细合成聚合物,晶体管的光机械响应可以针对特定的IR波段进行调整,用于检测目的。

    High temperature, minimally invasive optical sensing modules
    9.
    发明授权
    High temperature, minimally invasive optical sensing modules 失效
    高温,微创光学传感模块

    公开(公告)号:US07327472B2

    公开(公告)日:2008-02-05

    申请号:US11185540

    申请日:2005-07-20

    IPC分类号: G01B9/02

    CPC分类号: G01K5/52 G01J5/38 G01J5/60

    摘要: A remote temperature sensing system includes a light source selectively producing light at two different wavelengths and a sensor device having an optical path length that varies as a function of temperature. The sensor receives light emitted by the light source and redirects the light along the optical path length. The system also includes a detector receiving redirected light from the sensor device and generating respective signals indicative of respective intensities of received redirected light corresponding to respective wavelengths of light emitted by the light source. The system also includes a processor processing the signals generated by the detector to calculate a temperature of the device.

    摘要翻译: 远程温度感测系统包括选择性地产生两种不同波长的光的光源和具有随温度变化的光程长度的传感器装置。 传感器接收由光源发出的光,并沿光路长度重新定向光。 该系统还包括检测器,其接收来自传感器设备的重定向光,并产生指示对应于由光源发射的光的相应波长的接收的重定向光的相应强度的相应信号。 该系统还包括处理由检测器产生的信号以计算设备的温度的处理器。

    Optical frequency and temperature sensor system
    10.
    发明授权
    Optical frequency and temperature sensor system 失效
    光频和温度传感器系统

    公开(公告)号:US06243506B1

    公开(公告)日:2001-06-05

    申请号:US08896980

    申请日:1997-07-18

    IPC分类号: G02B600

    摘要: This invention proposed a temperature and optical frequency sensor using two different optical resonators. The fiber with different thermal expansion factor and refractive index can be used to sense the temperature variation. The optical resonators with different cavity lengths can be used to detect the frequency deviation. Applying a laser, a microprocessor and two optical resonators with different thermal expansion factors and resonate lengths, we invent the device which can detect the temperature and frequency simultaneously. Furthermore, the device can provide tunable and highly stabilized light source for optical system application.

    摘要翻译: 本发明提出了一种使用两种不同光谐振器的温度和光频传感器。 具有不同热膨胀系数和折射率的纤维可用于感测温度变化。 具有不同腔长度的光学谐振器可用于检测频率偏差。 应用激光器,微处理器和具有不同热膨胀系数和谐振长度的两个光学谐振器,我们发明了可以同时检测温度和频率的器件。 此外,该装置可以提供用于光学系统应用的可调节和高度稳定的光源。