Self-calibrating optical reflectance probe system
    1.
    发明授权
    Self-calibrating optical reflectance probe system 有权
    自校准光学反射探测系统

    公开(公告)号:US07477376B2

    公开(公告)日:2009-01-13

    申请号:US11770180

    申请日:2007-06-28

    CPC classification number: G01N21/274 G01N21/276 G01N21/55

    Abstract: A self-calibrating optical reflectance probe system having an illuminant light source to illuminate a sample material, optical pickup means to collect reflected light from the sample material, and an articulated white reference reflection standard for illuminant reference to provide a system capable of accurately measuring optical reflectance and automated verification of proper operation. The probe system preferably employs an uncomplicated mount using a single pipe fitting and clamp.

    Abstract translation: 具有用于照射样品材料的光源光源的自校准光学反射探测系统,用于收集来自样品材料的反射光的光学拾取装置以及用于发光体参考的铰接式白色参考反射标准,以提供能够精确测量光学 反射率和自动验证正确的操作。 探针系统优选使用单个管接头和夹具采用不复杂的安装。

    Wideband optical micro-spectrometer system
    3.
    发明授权
    Wideband optical micro-spectrometer system 失效
    宽带光学微光谱系统

    公开(公告)号:US5424826A

    公开(公告)日:1995-06-13

    申请号:US99308

    申请日:1993-07-30

    CPC classification number: G01J3/2803 G01J3/36 G01J3/0208 G01J3/0256 G01J3/0294

    Abstract: A wideband optical micro-spectrometer system for detecting the intensity of light as a function of wavelength. The device employs multiple optical micro-spectrometers generating adjacent spectra mounted onto a single photodetector array and digital processing techniques to generate a continuous wide spectrum from the narrower spectrums generated by the optical micro-spectrometers. Optical micro-spectrometers generating non-adjacent spectra could also be employed to produce spectral data for predetermined non-adjacent spectral ranges. System reliability is improved and maintenance reduced with the use of pre-aligned optical micro-spectrometers. Thereby, a device is created which has the spectral range of larger spectrometers having a much reduced physical size, increased system reliability and reduced maintenance requirements.

    Abstract translation: 用于检测作为波长的函数的光的强度的宽带光学微分光谱仪系统。 该设备采用多个光学微光谱仪,产生安装在单个光电检测器阵列上的相邻光谱,并使用数字处理技术从光学微光谱仪产生的较窄光谱产生连续的宽谱。 产生非相邻光谱的光学微分光谱仪也可用于产生预定的非相邻光谱范围的光谱数据。 通过使用预对准的光学微量光谱仪,可以提高系统的可靠性并降低维护成本。 因此,创建了具有较大光谱仪的光谱范围具有大大减小的物理尺寸,增加的系统可靠性和减少维护要求的装置。

    Optically controlled transducer
    4.
    发明授权
    Optically controlled transducer 失效
    光控传感器

    公开(公告)号:US5085125A

    公开(公告)日:1992-02-04

    申请号:US632210

    申请日:1990-12-21

    CPC classification number: F15B13/044 Y10T137/86622

    Abstract: An optically controlled fluid powered actuator is disclosed and includes a primary fluid valve positioning transducer which responds to optical binary coded control words to position a fluid. The actuator has a pair of opposed stacks of piezoelectric elements with the relative length of the piezoelectric elements in each stack being in the same ratios as the relative weights of bits in the control words. There are two sets of optically actuated electrical switches each responsive to control words to energize corresponding ones of the piezoelectric elements in an associated stack of elements. A first class lever has one end coupled to a controlling portion of a fluid valve and the other end interposed between the stacks of piezoelectric elements so that the lever can translate motion of elements in a piezoelectric stack into fluid valve actuation. A fluid powered electrical generator provides the sole source of electrical energy for the piezoelectric elements. A pair of optical fibers convey the optical binary coded control words in the form of a wavelength division multiplexed optical signal to corresponding ones of the sets of switches.

    Abstract translation: 公开了一种光学控制的流体动力致动器,并且包括主要流体阀定位换能器,其响应于光学二进制编码控制字以定位流体。 致动器具有一对相对的压电元件堆叠,每个堆叠中的压电元件的相对长度与控制字中的位的相对权重相同。 存在两组光学致动的电开关,每组响应于控制字来激励相关联的元件堆叠中的对应的压电元件。 第一级杠杆的一端连接到流体阀的控制部分,另一端插入在压电元件堆之间,使得杠杆可以将压电叠层中的元件的运动转化成流体阀驱动。 流体动力发电机为压电元件提供唯一的电能源。 一对光纤以波分复用光信号的形式将光二进制编码控制字传送给开关组中的相应组。

    Self-calibrating optical reflectance probe system

    公开(公告)号:US07477397B2

    公开(公告)日:2009-01-13

    申请号:US10711129

    申请日:2004-08-26

    CPC classification number: G01N21/274 G01N21/276 G01N21/55

    Abstract: A self-calibrating optical reflectance probe system having an illuminant light source to illuminate a sample material, optical pickup means to collect reflected light from the sample material, and an articulated white reference reflection standard for illuminant reference to provide a system capable of accurately measuring optical reflectance and automated verification of proper operation. The probe system preferably employs an uncomplicated mount using a single pipe fitting and clamp.

    Optical waveguide for an optic sensor
    6.
    发明授权
    Optical waveguide for an optic sensor 失效
    用于光学传感器的光波导

    公开(公告)号:US5321258A

    公开(公告)日:1994-06-14

    申请号:US67564

    申请日:1993-05-26

    Abstract: An optical sensor unit is provided which is capable of being manufactured as a small sensor package as a result of a novel housing used to align a sensing element with respect to an incoming optical signal, such as a beam of light generated by an LED or laser. An arcuate internal passage within the housing defines a reflective optical waveguide which is capable of redirecting the light as it travels through the housing, such that mirrors, prisms and collimating lenses are not required. Furthermore, the optical waveguide is an improvement over the use of optical fibers which are bent to form a waveguide, in that losses and mechanical failures associated with sharp bends in optical fibers are avoided.

    Abstract translation: 提供了一种光学传感器单元,其能够作为小型传感器封装制造,这是由于用于将感测元件相对于入射光信号(例如由LED或激光器产生的光束)对准的新型外壳 。 壳体内的弧形内部通道限定反射光波导,其能够在光线行进通过壳体时重定向光,使得不需要反射镜,棱镜和准直透镜。 此外,光波导是对弯曲形成波导的光纤的使用的改进,因为避免了与光纤中的尖锐弯曲相关联的损耗和机械故障。

    Spectral signal analyzer system
    7.
    发明授权
    Spectral signal analyzer system 失效
    光谱信号分析仪系统

    公开(公告)号:US5317524A

    公开(公告)日:1994-05-31

    申请号:US762837

    申请日:1991-09-19

    CPC classification number: G01D5/268 G01K11/00

    Abstract: A process for analyzing a spectral signal generated by a birefringent element and transmitted to an array. An output spectral signal emanating from the array is converted from an analog to a digital signal to establish a reference wave form which has a dominant frequency after the birefringent element is exposed to a known temperature. Thereafter, a current wave form is generated from the output spectral signal emanating from the array. A phase and frequency relationship is obtained by cross correlating the current wave form and the reference wave form. The dominant frequency for the phase and frequency relationship is obtained by Fast Fourier Transformation. Thereafter, the dominant frequency for the phase and frequency relationship of the current wave form is compared with the dominant frequency for the reference wave form to determine a temperature range. The temperature range and phase and dominant frequency for the current wave form are matched with a reference schedule stored in the memory of a digital signal processor to predict the current temperature experienced by the birefringent element. This predicted temperature is displayed on a screen to inform an operator of the current operational conditions experienced by the birefringent element.

    Abstract translation: 用于分析由双折射元件产生并传输到阵列的光谱信号的处理。 从阵列发出的输出光谱信号从模拟信号转换为数字信号,以建立在双折射元件暴露于已知温度之后具有主频的参考波形。 此后,从从阵列发出的输出光谱信号产生当前波形。 通过将当前波形与参考波形相互交叉获得相位和频率关系。 通过快速傅立叶变换获得相位和频率关系的主频率。 此后,将电流波形的相位和频率关系的主频与参考波形的主频进行比较,以确定温度范围。 当前波形的温度范围和相位和主频与存储在数字信号处理器的存储器中的参考调度相匹配,以预测双折射元件所经历的当前温度。 该预测温度显示在屏幕上以通知操作者双折射元件所经历的当前操作条件。

    Device for sensing the presence of a flame in a region
    8.
    发明授权
    Device for sensing the presence of a flame in a region 失效
    用于感测一个地区火焰的存在的装置

    公开(公告)号:US5164600A

    公开(公告)日:1992-11-17

    申请号:US628961

    申请日:1990-12-13

    CPC classification number: F23N5/082 F23N2029/00

    Abstract: A light off detecting arrangement for sensing the presence of a flame in a region such as the afterburner of a turbine engine is disclosed. An optical focusing device such as a lens or mirror is located near a quartz window adjacent the afterburner for concentrating electromagnetic radiation emanating from the region. An optical (fiber optic) pathway receives the concentrated electromagnetic radiation from the optical focusing device and conveys that radiation thru the optic filters to an opto-electrical converter for converting incident electromagnetic radiation to electrical signals. A frequency selective optical device such as an infrared filter is interposed between the optical focusing device and the opto-electrical converter for insuring that a preselected portion only of the electromagnetic radiation emanating from the region is converted to electrical signals. The electrical signals are compared to a predetermined threshold value and a fault flame present indication is issued if the comparison indicates sufficient radiation in the preselected portion indicative of the presence of a flame, and a second no flame indication is issued otherwise.

    Abstract translation: 公开了一种用于感测在诸如涡轮发动机的再加燃器之类的区域中存在火焰的熄灭检测装置。 诸如透镜或反射镜之类的光学聚焦装置位于靠近加力器的石英窗附近,用于集中从该区域发出的电磁辐射。 光学(光纤)路径接收来自光学聚焦装置的集中的电磁辐射,并将通过光学滤波器的辐射传送到光电转换器,用于将入射的电磁辐射转换成电信号。 在光聚焦装置和光电转换器之间插入诸如红外滤光器的频率选择性光学装置,用于确保只有从该区域发出的电磁辐射的预选部分被转换成电信号。 将电信号与预定阈值进行比较,并且如果比较表示预先指示火焰存在的预选部分中的足够辐射,并且否则另外发出第二无火焰指示,则发出故障火焰存在指示。

    Optic switch and speed sensor
    9.
    发明授权
    Optic switch and speed sensor 失效
    光开关和速度传感器

    公开(公告)号:US4843232A

    公开(公告)日:1989-06-27

    申请号:US138258

    申请日:1987-12-28

    CPC classification number: G01P3/486 G01P3/487

    Abstract: An electro-optic speed sensor for sensing the speed of rotation of a rotating sending unit which includes an optical switch transducer for sensing disturbances in a magnetic field caused by the passage of a rotating magnetic sending wheel on the rotating member. The optical switch transducer uses a Faraday material and provides its signal by rotating the polarity of polarized light from a first source of light having a first bandwidth while allowing a second source of light having a second bandwidth to pass through unaffected. The first and second sources of light are thereafter, reflected within the transducer. The disturbances in the magnetic field generate an optical signal resulting from changes in the Faraday rotation. A photodetector receives the light from the first source to develop an operational signal corresponding to the speed of rotation of the rotating member and light from the second source to check on the continuity of the sensor system.

    Abstract translation: 一种用于感测旋转发送单元的旋转速度的电光速度传感器,其包括用于感测由旋转磁轮在旋转构件上通过引起的磁场中的扰动的光开关换能器。 光开关传感器使用法拉第材料并通过旋转具有第一带宽的第一光源的偏振光的极性提供其信号,同时允许具有第二带宽的第二光源通过未受影响。 此后,第一和第二光源反射在换能器内。 磁场中的干扰产生由法拉第旋转的变化引起的光信号。 光电检测器接收来自第一源的光,以产生对应于旋转构件的旋转速度和来自第二源的光的操作信号,以检查传感器系统的连续性。

    Fringe pattern analysis of a birefringent modified spectrum to determine
environmental temperature
    10.
    发明授权
    Fringe pattern analysis of a birefringent modified spectrum to determine environmental temperature 失效
    双折射修正光谱的边缘图案分析,以确定环境温度

    公开(公告)号:US5255068A

    公开(公告)日:1993-10-19

    申请号:US796743

    申请日:1991-11-25

    CPC classification number: G01K11/12

    Abstract: A sensor for use in an optical temperature detector system having a birefringent element made of a single crystal metal oxide plate. A broad band light spectrum is transmitted through a first linear polarizing element to create a linearly polarized wave. The linearly polarized wave on passing through the single crystal metal oxide plate decomposes into first and second orthogonally polarized waves. Propagation of the linearly polarized wave through the birefringent single crystal metal oxide plate introduces a temperature dependent phase shift between the two waves. Thereafter, a second linear polarizer combines the first and second orthogonally polarized waves to create a modulated light spectrum having a fringe pattern, the fringe pattern being a function of the current temperature experienced by said birefringent element. A fiber optic cable connected to the second linear polarizing element carries the modulated light spectrum to an opto-electronic interface where the fringe pattern is extracted and a computer compatible signal is generated for a CPU to accurately indicate current environmental temperature conditions up to 1000.degree. C. experienced by the single crystal plate crystal in the birefringent element.

    Abstract translation: 一种用于具有由单晶金属氧化物板制成的双折射元件的光学温度检测器系统的传感器。 宽带光谱通过第一线性偏振元件透射以产生线偏振波。 通过单晶金属氧化物板的线偏振波分解成第一和第二正交极化波。 通过双折射单晶金属氧化物板的线偏振波的传播在两个波之间引入温度相关的相移。 此后,第二线性偏振器组合第一和第二正交极化波,以产生具有条纹图案的调制光谱,该条纹图案是由所述双折射元件所经历的当前温度的函数。 连接到第二线性偏振元件的光纤电缆将调制的光谱传送到光电接口,其中提取条纹图案,并且为CPU产生计算机兼容信号以准确地指示当前最高1000℃的环境温度条件 由双折射元件中的单晶板晶体经历。

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