发明名称 |
VERTEILTER FASEROPTISCHER SENSOR |
摘要 |
<p>This invention provides a distributed optical fiber sensor which necessitates no manual adjustment and is capable of measuring a strain and/or a temperature with high accuracy and high spatial resolution. A distributed optical fiber sensor of the invention utilizing a Brillouin scattering phenomenon, comprises a stepwise optical light source for generating an optical pulse having a stepwise distribution of light intensity to increase toward the center; a continuous light source for generating continuous light; a sensing optical fiber on which the optical pulse is incident as probe light and the continuous light is incident as pump light to thereby cause a Brillouin scattering phenomenon between the probe light and the pump light; and a Brillouin time domain detector for determining a Brillouin loss spectrum or a Brillouin gain spectrum from the light emerging from the sensing optical fiber and attributed to the Brillouin scattering phenomenon, and measuring strain caused in and/or temperature of the sensing optical fiber in the longitudinal direction thereof based on the determined Brillouin loss spectrum or the Brillouin gain spectrum.</p> |
申请公布号 |
AT545003(T) |
申请公布日期 |
2012.02.15 |
申请号 |
AT20040746821T |
申请日期 |
2004.06.25 |
申请人 |
NEUBREX CO., LTD. |
发明人 |
KISHIDA, KINZO;LI, TEKKEN;LIN, SHENBIN |
分类号 |
G01B11/16;G01K11/12 |
主分类号 |
G01B11/16 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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