Thermal measuring and testing – Temperature measurement – In spaced noncontact relationship to specimen
Reexamination Certificate
2007-05-30
2010-06-29
Verbitsky, Gail (Department: 2855)
Thermal measuring and testing
Temperature measurement
In spaced noncontact relationship to specimen
C374S135000, C374S121000, C374S137000, C374S129000
Reexamination Certificate
active
07744275
ABSTRACT:
An optical fiber temperature sensing device has a sensor body; a light source housed in the sensor body; a temperature measuring optical fiber disposed outside the sensor body and extended to a temperature measurement site, wherein, when a light is emitted from the light source into the temperature measuring optical fiber, Stokes light intensity and anti-Stokes light intensity of backscattered light generated in the temperature measuring optical fiber are detected to determine a temperature at the temperature measurement site; a reference temperature optical fiber disposed inside the sensor body; and a controller that is operable to control an output of the light source by monitoring Stokes light intensity and anti-Stokes light intensity of backscattered light generated in the reference temperature optical fiber.
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Hiruta Akihiro
Kawauchi Hidetaka
Ogura Masaki
Yu Juhyun
Hitachi Cable Ltd.
McGinn IP Law Group PLLC
Verbitsky Gail
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