Fig. 6
From: Enhancing DAS sensitivity through structural optimization of thin-walled cylinders
Experimental setup for DAS sensitivity testing. (a) The thin-walled cylindrical fiber-optic sensors are connected in series and arranged in a circular array around the acoustic source. The speaker is placed on cushioning material to prevent resonance. (b) The DAS interrogator used for data acquisition. (c) The audio generator that provides the signal to the speaker.
