Tubular phononic crystal sensor

We propose the design of a tubular phononic crystal (TPC) for purpose sensing physical properties liquid filling hollow part tube. The TPC is constituted by periodic repetition washers along pipe with advantage avoiding any perturbation flowing fluid element inside Using finite simulations, we demonstrate existence complete as well polarization dependent bandgaps which one can localized modes associated defects. most sensitive cavity to sound velocity found be Fabry–Pérot (F–P) cavity. signature detected peaks or dips in transmission spectrum at external surface study dramatic effect viscosity, more particularly shear on these features and discuss conditions their practical observation. A test sample made polymer fabricated means 3D printing characterized without measurements. comparison simulations showed necessity considering damping whose discussed. Our sensor find many applications different scales several systems transporting microfluidic channels micro- nanotechnologies, syringes medicine, pipelines civil engineering.