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    • 1. 发明公开
    • 센서 및 그것을 이용한 외란 측정 방법
    • 传感器和外部的湍流测量方法
    • KR1020080053506A
    • 2008-06-13
    • KR1020087009380
    • 2006-09-29
    • 스미토모 덴키 고교 가부시키가이샤
    • 야마모토요시노리사카베이타루사사오카에이스케단지히사시
    • G01K11/12G01K11/00G01B11/16G01D5/353
    • G01L1/243G01B11/18G01D5/35348G01K11/32G01M11/083
    • There are provided a sensor and others having a structure for accurately measuring a temperature in a wide temperature range including a low temperature range and accurately judging a temperature change and distortion generated in each of objects to be measured. The sensor includes a laser light source, a sensor unit having a plurality of waveguides through which a laser light from the laser light source propagates, a detection unit, and an analysis unit. The detection unit detects a plurality of Brylane spectra obtained from the sensor unit. The analysis unit decides the measurement value of a temperature in the sensor unit or a distortion generated in the sensor unit according to the parameter fluctuation characterizing each of the detected Brylane spectra. Especially, the sensor unit has a structure for differentiating the change of the Brylane spectrum against an external turbulence between the plurality of waveguides. By simultaneously monitoring Brylane spectra exhibiting different changes between the plurality of waveguides, it is possible to accurately measure the temperature in a wide range including a low temperature range and to accurately separate distortion and temperature.
    • 提供了一种传感器和其他具有精确测量包括低温范围的宽温度范围内的温度的结构的传感器,并准确地判断在每个被测量物体中产生的温度变化和变形。 传感器包括激光光源,具有多个波导的传感器单元,来自激光光源的激光通过该波导传播,检测单元和分析单元。 检测单元检测从传感器单元获得的多个Brylane光谱。 分析单元根据表征每个检测到的Brylane光谱的参数波动来决定传感器单元中的温度的测量值或在传感器单元中产生的失真。 特别地,传感器单元具有用于区分Brylane光谱与多个波导之间的外部湍流的变化的结构。 通过同时监测在多个波导之间表现出不同变化的Brylane光谱,可以精确地测量包括低温范围在内的宽范围内的温度并精确地分离变形和温度。