Optical fiber temperature sensor

Details Optical fiber temperature sensor Optical fiber temperature sensor

2011-08-16

2011-08-16

Johnson, Amy Cohen (Department: 2841)

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

C374S131000, C356S073100

Reexamination Certificate

active

07997792

ABSTRACT:
The present invention relates to an optical fiber temperature sensor capable of reducing an error in a temperature measurement. The sensor comprises an optical fiber, an optical frequency difference adjusting section, a light source system, a spectrum measuring section, a temperature calculating section, and a correcting section. The light source system outputs, into different ends of the optical fiber, probe light and pumping light of which each center frequency is set corresponding to an instruction from the optical frequency difference indicating section respectively. The temperature calculating section calculates a temperature of an object based on BGS in a first domain measured by the spectrum measuring section. On the other hand, the correcting section outputs a correction instruction to the light source system so that BGS center frequency of a second domain may be in agreement with a reference value thereof.

REFERENCES:
patent: 7170590 (2007-01-01), Kishida
patent: 7227123 (2007-06-01), Kwon et al.
patent: 7719666 (2010-05-01), Kishida et al.
patent: 2010/0027581 (2010-02-01), Sasaoka
patent: 2010/0040108 (2010-02-01), Sasaoka et al.
patent: 2010/0092127 (2010-04-01), Sasaoka et al.
patent: 2010/0238427 (2010-09-01), Sasaoka et al.
patent: 2-103428 (1990-04-01), None
patent: 2-201233 (1990-08-01), None
patent: 2000-180265 (2000-06-01), None
patent: 2003-14584 (2003-01-01), None
patent: 2003-322588 (2003-11-01), None
patent: 2004-101472 (2004-04-01), None
K. Hotate et al. “Simplified System of Fiber Brillouin Optical Correlation Domain Analysis for Distributed Strain Sensing”, International congress on 16thoptical fiber sensors (OFS-16), We2-3, p. 290-293, Oct. 2003.

Affiliated with

Also associated with

Rating

Optical fiber temperature sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Optical fiber temperature sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optical fiber temperature sensor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2788675