time-domain reflectometer

Polarization sensitive optical time-domain reflectometer ( P-OTDR) is widely used for measuring polarization parameters of optical fiber ( birefringence, polarization mode dispersion) and for distributed optical fiber sensing.

偏振敏感时域反射计（P-OTDR）在光纤偏振参数（双折射、偏振模色散）分布式测量，分布式传感中有着广泛的应用。

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Brillouin Optical Time-Domain Reflectometer ( BOTDR) is a newly developed distributed measuring technique for strains.

布里渊散射光时域反射计（BOTDR）是近年来才研发成功的分布式应变测量技术。

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In this paper, a novel security systems based on the Φ-OTDR ( phase-sensitive optical time-domain reflectometer,) distributed optical fiber sensing technology is proposed.

本文研究一种新型的基于Φ-OTDR（phase-sensitive optical time-domain reflectometer，相位敏感光时域反射计）分布式光纤传感技术的安防系统。

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