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    • 12. 发明申请
    • Fiber optic sensor system
    • 光纤传感器系统
    • US20060139652A1
    • 2006-06-29
    • US11314714
    • 2005-12-21
    • John Berthold
    • John Berthold
    • G01B9/02
    • G01D5/35303G01D5/35383G01H9/004G01P15/093G01P15/18
    • A method and apparatus for detecting seismic vibrations using a series of MEMS units, with each MEMS unit including an interferometer is described. The interferometers on the MEMS units receive and modulate light from two differing wavelengths by way of a multiplexing scheme involving the use of Bragg gratings and light circulators, and an optoelectronic processor receives and processes the modulated light to discern vibrational movement of the system, which in turn allows for monitoring and calculation of a specified environmental parameter, such as seismic activity, temperature or pressure.
    • 描述了使用一系列MEMS单元检测地震振动的方法和装置,其中每个MEMS单元包括干涉仪。 MEMS单元上的干涉仪通过涉及使用布拉格光栅和光循环器的复用方案接收和调制来自两个不同波长的光,并且光电子处理器接收并处理调制光以识别系统的振动运动, 转动允许监测和计算指定的环境参数,如地震活动,温度或压力。