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    • 9. 发明授权
    • Environmental measurement system and environmental measurement method
    • 环境测量系统和环境测量方法
    • US08740454B2
    • 2014-06-03
    • US13564131
    • 2012-08-01
    • Fumio TakeiKazushi UnoTakeo Kasajima
    • Fumio TakeiKazushi UnoTakeo Kasajima
    • G01K3/00G01J5/00G01K1/00G01K11/00
    • G01K11/32G01K3/06G01K2011/324G01P5/10
    • An optical fiber is provided with a first measurement portion and a second measurement portion provided with covering layers different at least in any one of heat capacity and heat conductivity. Then, the first measurement portion and the second measurement portion are located in the same measurement position and light is inputted from a temperature measurement device into the optical fiber. Thereafter, the temperature measurement device receives backscattered light generated inside the optical fiber to measure temperature distribution in a longitudinal direction of the optical fiber. An analyzer analyzes a variation over time of the temperature distribution outputted from the temperature measurement device to calculate a temperature and a wind velocity in a measurement position where the first measurement portion and the second measurement portion are located.
    • 光纤具有第一测量部分和第二测量部分,该第二测量部分设置有至少在热容和热导率中的至少任一个中不同的覆盖层。 然后,第一测量部分和第二测量部分位于相同的测量位置,并且将光从温度测量装置输入到光纤中。 此后,温度测量装置接收在光纤内产生的背散射光,以测量光纤的纵向方向上的温度分布。 分析器分析从温度测量装置输出的温度分布随时间的变化,以计算第一测量部分和第二测量部分所在的测量位置中的温度和风速。
    • 10. 发明申请
    • ENVIRONMENTAL MEASUREMENT SYSTEM AND ENVIRONMENTAL MEASUREMENT METHOD
    • 环境测量系统和环境测量方法
    • US20120307861A1
    • 2012-12-06
    • US13564131
    • 2012-08-01
    • Fumio TakeiKazushi UnoTakeo Kasajima
    • Fumio TakeiKazushi UnoTakeo Kasajima
    • G01K11/32G01K3/00
    • G01K11/32G01K3/06G01K2011/324G01P5/10
    • An optical fiber is provided with a first measurement portion and a second measurement portion provided with covering layers different at least in any one of heat capacity and heat conductivity. Then, the first measurement portion and the second measurement portion are located in the same measurement position and light is inputted from a temperature measurement device into the optical fiber. Thereafter, the temperature measurement device receives backscattered light generated inside the optical fiber to measure temperature distribution in a longitudinal direction of the optical fiber. An analyzer analyzes a variation over time of the temperature distribution outputted from the temperature measurement device to calculate a temperature and a wind velocity in a measurement position where the first measurement portion and the second measurement portion are located.
    • 光纤具有第一测量部分和第二测量部分,该第二测量部分设置有至少在热容和热导率中的至少任一个中不同的覆盖层。 然后,第一测量部分和第二测量部分位于相同的测量位置,并且将光从温度测量装置输入到光纤中。 此后,温度测量装置接收在光纤内产生的背散射光,以测量光纤的纵向方向上的温度分布。 分析器分析从温度测量装置输出的温度分布随时间的变化,以计算第一测量部分和第二测量部分所在的测量位置中的温度和风速。