OPTICAL FIBER CURRENT SENSOR
    1.
    发明申请
    OPTICAL FIBER CURRENT SENSOR 审中-公开
    光纤电流传感器

    公开(公告)号:US20150102802A1

    公开(公告)日:2015-04-16

    申请号:US14172533

    申请日:2014-02-04

    CPC classification number: G01R15/246 G01R15/247

    Abstract: An optical fiber current sensor includes a transmitter optical subassembly (TOSA) that is formed in a package of a linear polarizer that applies light from a light source to a sensor coil that is formed with an optical fiber by linearly polarizing, a polarization beam splitter that separates light that is reflected from the sensor coil according to polarization, and a receiver optical subassembly (ROSA) that is formed in a package together with first and second photodetectors that detect separated light according to polarization.

    Abstract translation: 一种光纤电流传感器包括:发射器光学子组件(TOSA),其形成在线性偏振器的封装中,该线性偏振器将来自光源的光施加到通过线偏振形成的光纤的传感器线圈;偏振分束器, 根据偏振分离从传感器线圈反射的光;以及接收器光学子组件(ROSA),其与根据偏振检测分离的光的第一和第二光电检测器一起形成在封装中。

    WAVELENGTH-SELECTABLE COATING THICKNESS MEASUREMENT APPARATUS
    4.
    发明申请
    WAVELENGTH-SELECTABLE COATING THICKNESS MEASUREMENT APPARATUS 有权
    波长选择涂层厚度测量仪

    公开(公告)号:US20150159997A1

    公开(公告)日:2015-06-11

    申请号:US14505747

    申请日:2014-10-03

    CPC classification number: G01B17/025 G01B11/0666

    Abstract: Provided is an apparatus that measures a thickness of a coating by selecting a wavelength of a laser based on a color of the coating using a contactless method using a photoacoustic effect and an interferometer, the apparatus including a pulsed laser source to irradiate a pulsed laser beam toward the coating, a continuous wave (CW) laser source to irradiate a CW laser beam toward the coating, a detector to detect an optical interference signal corresponding to the CW laser beam, and a signal processor to process the optical interference signal to calculate a thickness of the coating.

    Abstract translation: 提供了一种通过使用光声效应和干涉仪的非接触式方法来选择基于涂层的颜色的激光的波长来测量涂层的装置,该装置包括用于照射脉冲激光束的脉冲激光源 向涂层提供连续波(CW)激光源,以朝向涂层照射CW激光束;检测器,用于检测对应于CW激光束的光学干涉信号;以及信号处理器,用于处理光学干涉信号以计算 涂层厚度。

    OPTICAL TRANSMITTER MODULE WITH TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING THE SAME
    6.
    发明申请
    OPTICAL TRANSMITTER MODULE WITH TEMPERATURE CONTROL DEVICE AND METHOD FOR MANUFACTURING THE SAME 审中-公开
    具有温度控制装置的光发射模块及其制造方法

    公开(公告)号:US20150043166A1

    公开(公告)日:2015-02-12

    申请号:US14457359

    申请日:2014-08-12

    CPC classification number: H04B10/503 H04B10/0799 H04B10/502 Y10T29/49085

    Abstract: The optical transmitter module may include a thermal-electric cooler comprising at least one metal pattern formed on a side of a cooling plate temperature of which is controlled by thermo-electric cooling elements, a laser diode installed in one of the at least one metal pattern, and a monitor photo diode which is installed in another one of the at least one metal pattern and monitors change of light signals emitted from the laser diode. Therefore, since elements are located on the same side of the cooling plate, the optical transmitter module may have a simple structure and an advantage that light signals emitted from the laser diode can be directly coupled to the optical fiber without optical path conversions. Also, since the laser diode is installed with a small gap from thermal-electric elements, the temperature control characteristics of the thermal-electric cooler can be enhanced.

    Abstract translation: 光发射器模块可以包括热电冷却器,其包括形成在冷却板温度的一侧上的至少一个金属图案,其由热电冷却元件控制,激光二极管安装在至少一个金属图案之一中 以及安装在所述至少一个金属图案中的另一个中的监视器光电二极管,并且监视从所述激光二极管发射的光信号的变化。 因此,由于元件位于冷却板的同一侧,所以光发射器模块可以具有简单的结构和优点,即从激光二极管发射的光信号可以直接耦合到光纤而不进行光路转换。 此外,由于激光二极管与热电元件的间隙小,所以可以提高热电冷却器的温度控制特性。

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