&lt;title&gt;Multiplexed fiber optic Bragg grating sensors for strain and temperature measurements in power systems&lt;/title&gt;

Kalinowski, Hypolito José; Chaves, Roberta Cardoso; Abe, Ilda; Santos, Manoel Jose Diogo dos; Pontes, Maria José; Romero, Murilo A.; Francisco, Carlos Alberto de

doi:10.1117/12.347974

Cited by 8 publications

(2 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the conventional electrical load cell used in ice monitoring, it is easily disturbed by strong electromagnetic interference, and it needs a power supply (usually a solar panel) on site. As the optical fiber composite ground wire (OPGW) which is already installed on the electric tower, can be used to transmit the optical signal, an optical ice monitoring system based on FBG is proposed [ 5 , 6 ]. Taking advantages of the fiber Bragg grating (FBG), the system is immune to electromagnetic interference, requires no power supply on site, the chemical properties are stable in harsh environments, and has a long lifespan.…”

Section: Introductionmentioning

confidence: 99%

The Reusable Load Cell with Protection Applied for Online Monitoring of Overhead Transmission Lines Based on Fiber Bragg Grating

Guo

Mao

et al. 2016

Sensors

View full text Add to dashboard Cite

Heavy ice coating of high–voltage overhead transmission lines may lead to conductor breakage and tower collapse causing the unexpected interrupt of power supply. The optical load cell applied in ice monitoring systems is immune to electromagnetic interference and has no need of a power supply on site. Therefore, it has become a hot research topic in China and other countries. In this paper, to solve the problem of eccentric load in measurement, we adopt the shearing structure with additional grooves to improve the strain distribution and acquire good repeatability. Then, the fiber Bragg grating (FBG) with a permanent weldable package are mounted onto the front/rear groove of the elastic element by spot welding, the direction deviation of FBGs is 90° from each other to achieve temperature compensation without an extra FBG. After that, protection parts are designed to guarantee high sensitivity for a light load condition and industrial safety under a heavy load up to 65 kN. The results of tension experiments indicate that the sensitivity and resolution of the load cell is 0.1285 pm/N and 7.782 N in the conventional measuring range (0–10 kN). Heavy load tension experiments prove that the protection structure works and the sensitivity and resolution are not changed after several high load (65 kN) cycles. In addition, the experiment shows that the resolution of the sensor is 87.79 N in the large load range, allowing the parameter to be used in heavy icing monitoring.

show abstract

Section: Introductionmentioning

confidence: 99%

The Reusable Load Cell with Protection Applied for Online Monitoring of Overhead Transmission Lines Based on Fiber Bragg Grating

Guo

Mao

et al. 2016

Sensors

View full text Add to dashboard Cite

show abstract

“…Fiber Bragg Grating (FBG) is proved to be a good candidate for monitoring of power equipment owing to its inherent immunity to electromagnetic interference, [4][5]. Experiments indicate FBG showed no performance change over million times loading&unloading cycles [6] and its lifetime is longer than 25 years [7], thus it is suitable for long time monitoring.…”

Section: Introductionmentioning

confidence: 99%

Optical measurement of ice load on transmission lines

Guo

Jian

et al. 2010

2010 Annual Report Conference on Electrical Insulation and Dielectic Phenomena

View full text Add to dashboard Cite

Traditional tension sensors used in ice monitoring on transmission lines are easily disturbed by the strong electromagnetic field. In this paper, a novel optical measuring system in the basis of Fiber Bragg Grating(FBG) sensing technology is proposed. The FBG tension sensor is designed based on shear beam, and its sensitivity is then analyzed. The results of tension experiment indicate the sensor sensitivity is 0.0495pm/N and the sensor resolution is 20.2N. In the end of this paper, algorithm of ice load using the date from only one sensor is discussed.

show abstract

Ice Monitoring on Overhead Transmission Lines with FBG Tension Sensor

Guo

Meng

et al. 2010

2010 Asia-Pacific Power and Energy Engineering Conference

View full text Add to dashboard Cite

<title>Multiplexed fiber optic Bragg grating sensors for strain and temperature measurements in power systems</title>

Cited by 8 publications

References 0 publications

The Reusable Load Cell with Protection Applied for Online Monitoring of Overhead Transmission Lines Based on Fiber Bragg Grating

The Reusable Load Cell with Protection Applied for Online Monitoring of Overhead Transmission Lines Based on Fiber Bragg Grating

Optical measurement of ice load on transmission lines

Ice Monitoring on Overhead Transmission Lines with FBG Tension Sensor

Contact Info

Product

Resources

About