公开(公告)号：US11726019B2

公开(公告)日：2023-08-15

申请号：US17618377

申请日：2021-07-21

Applicant: DALIAN UNIVERSITY OF TECHNOLOGY

Inventor： Linsheng Huo ,  Shengbin Chen ,  Jing Zhou ,  Hongnan Li

IPC: G01N11/16 ,  G01N11/00

CPC classification number: G01N11/16 ,  G01N2011/0066

Abstract: The present invention belongs to the technical fields of civil engineering, smart material and health monitoring, and provides a viscous damper fluid viscosity monitoring device and method based on piezoceramic transducers, comprising piezoceramic transducers, wires, corks, a baffle and a viscous damper. When the fluid viscosity of the viscous damper changes, the energy dissipation of pressure waves during propagation in a fluid will change, and signals received by the piezoceramic transducers will change, so that the viscosity of the fluid in the viscous damper can be calculated by the amplitude change of the signals received. The device of the present invention has a simple structure and accurate monitoring results, and provides a simple and feasible method for real-time monitoring of fluid viscosity of viscous dampers in engineering.