Combined distributed temperature sensing and current monitoring

Krämer, S.; Feichter, Wilhelm; León, Fernando Puente; Stromberger, J.

doi:10.1117/12.734091

Cited by 2 publications

(2 citation statements)

References 3 publications

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“…As the laser pulse passes down the fiber, light is scattered through several mechanism, including Rayleigh scattering as well as Raman and Brillouin scattering ( Fig. 3) [4] . And the Raman signal is sufficiently strong and distinct to be useful in temperature measurement.…”

Section: Principles Of Distributed Condition Monitoring Techniquesmentioning

confidence: 99%

Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

et al. 2011

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Optical fiber composite power cable such as optical phase conductor (OPPC) is significant for the development of smart grid. This paper discusses the distributed cable condition monitoring techniques of the OPPC, which adopts embedded single-mode fiber as the sensing medium. By applying optical time domain reflection and laser Raman scattering, high-resolution spatial positioning and high-precision distributed temperature measurement is executed. And the OPPC cable condition parameters including temperature and its location, current carrying capacity, and location of fracture and loss can be monitored online. OPPC cable distributed condition monitoring experimental system is set up, and the main parts including pulsed fiber laser, weak Raman signal reception, high speed acquisition and cumulative average processing, temperature demodulation and current carrying capacity analysis are introduced. The distributed cable condition monitoring techniques of the OPPC is significant for power transmission management and security.

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Section: Principles Of Distributed Condition Monitoring Techniquesmentioning

confidence: 99%

Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

et al. 2011

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“…Magnetic flux leakage detector operates with induction levels of up to tens of mT (Babbar et al, 2005). Power systems monitoring involves fiber optic measuring of current via sensing its induced magnetic field (Krämer et al, 2007). Health concerns have led to regulations regarding recommended maximum induction values near substations, ranging from 6 mT at 3 kHz up to 40 mTat low frequencies (Szabó et al, 2007;The TransCat Project, 2007).…”

Section: Introductionmentioning

confidence: 99%

Performance analysis of the Faraday magnetic field point scanner

2013

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Purpose -The purpose of this paper is to discuss results of laboratory tests performed on a point type Faraday magnetic field scanner device designed for monitoring applications. Design/methodology/approach -Automated laboratory setup using a reference magnetic induction source was used to test key parameters such as spatial resolution and signal to noise ratio. Findings -Volume scans of magnitude of the magnetic field induction vector prove applicability of the sensor and demonstrate its advantages. Practical implications -Sensor is applicable for safe and accurate scanning of the magnetic induction spatial distribution. Originality/value -The paper presents a novel test setup.

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Combined distributed temperature sensing and current monitoring

Cited by 2 publications

References 3 publications

Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

Distributed condition monitoring techniques of optical fiber composite power cable in smart grid

Performance analysis of the Faraday magnetic field point scanner

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