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Fabrication and characterization of a diffraction-grating transducer in thin polybutadiene rubber film for sensing dynamical strain

机译:感测动态应变的聚丁二烯橡胶薄膜衍射光栅传感器的制作与表征

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摘要

Surface relief gratings are holographically fabricated in thin polybutadiene rubber films produced by both spin coating and dip coating on glass and metal substrates. These thin-film gratings are characterized for their application as efficient transducers for detecting dynamic strain in solids. The performance of these rubber-grating transducers is compared to surface-mounted fiber Bragg gratings for a range of frequencies between 50 Hz and 30 kHz. Dynamic-strain sensitivity around 1 n(epsilon)/(Hz)~(1/2) is recorded for thin rubber-film grating transducers.
机译:在玻璃和金属基板上通过旋涂和浸涂两种方法生产的聚丁二烯薄橡胶膜中,全息照相地制作了表面浮雕光栅。这些薄膜光栅的特点是可以用作检测固体中动态应变的有效传感器。在50 Hz到30 kHz的频率范围内,将这些橡胶光栅传感器的性能与表面安装的光纤布拉格光栅进行了比较。对于薄的橡胶膜光栅换能器,记录了大约1nε/(Hz)〜(1/2)的动态应变灵敏度。

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