High Sensitive FBG Sensor for Equivalent Salt Deposit Density Measurement
High Sensitive FBG Sensor for Equivalent Salt Deposit Density Measurement
复制标题
用于等效盐沉积密度测量的高灵敏度 FBG 传感器
DOI:
10.1109/lpt.2014.2364200
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发表时间:
2015-01
影响因子:
2.6
通讯作者:
Luo, Ying-Ting
中科院分区:
文献类型:
--
作者:
Jiang, Jun;Mu, Rui-Duo;Li, Cheng-Rong;Luo, Ying-Ting
Online monitoring of the contamination condition of power transmission line is important to prevent insulation from flashover. The conventional online monitoring methods are easily disturbed by the strong electromagnetic interference around the high voltage line. In this letter, Bragg wavelength of polyimide coated fiber Bragg grating (FBG) is found to be slightly restrained by the salt deposited on the polyimide surface. Based on the effect, a special designed FBG sensor is proposed for detecting equivalent salt deposit density (ESDD) on insulators of power transmission line. To improve the sensor sensitivity, multiple polyimide layers are coated on the naked FBG, and in the curing process a 0.15-N force is applied on the free end of FBG to form uniform layers. Experiment results show the restrain wavelength varies with the ESDD. The resolution can be improved with multiple polyimide layers.
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影响因子:
2.6
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通讯作者:
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影响因子:
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影响因子:
8.4
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通讯作者:
Xu, J