科研之友
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摘要
A novel measurement method for interlayer pressure in micro-clearance based on photonic crystal fiber is proposed and experimentally demonstrated. A sensor with a height of only 230 mu m was fabricated using polarization-maintaining photonic crystal fiber with higher birefringence. Experimental results show that the linearity and repeatability of the proposed sensor are 1.61%FS and 0.55%FS respectively. The sensor covered by a flimsy cushion material exhibits a large bearing pressure capability of 18.2 MPa, and the work range extends to 5 MPa. Such measurement technology could be very promising for mechanical characterization in narrow space.
