论文信息 - Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings

Simultaneous temperature and strain measurement based on arc-induced long-period fiber gratings

A compact sensor able to discriminate between temperature and strain related effects was implemented. The proposed sensing head comprises a single long-period grating with two sections written consecutively in the SMF-28 fiber, by the electric arc discharge technique, using different fabrication parameters. The sensor performance is based on the distinct temperature and strain sensitivity values presented by two neighbor resonances belonging to each grating section. The temperature and strain resolutions are ± 0.1 °C and ± 40 με, respectively.

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