公开(公告)号：US20170219530A1

公开(公告)日：2017-08-03

申请号：US15493432

申请日：2017-04-21

Applicant: KOCH HEAT TRANSFER COMPANY, LP

Inventor： CODY J. BORIGO ,  STEVEN E. OWENS ,  JOSEPH L. ROSE ,  JASON K. VAN VELSOR

IPC: G01N29/04 ,  G01N29/07 ,  H04R15/00 ,  G01N29/28 ,  G01N29/34 ,  F28F1/42 ,  G01N29/24

CPC classification number: G01N29/043 ,  F28F1/00 ,  F28F1/426 ,  F28F2200/00 ,  G01N1/00 ,  G01N29/07 ,  G01N29/2412 ,  G01N29/28 ,  G01N29/348 ,  G01N2201/00 ,  G01N2291/0425 ,  G01N2291/2636 ,  G06Q10/00 ,  H01L21/00 ,  H04R1/00 ,  H04R15/00

Abstract: A magnetostrictive transducer assembly for generating a longitudinal elastic guided wave of a selected frequency and mode and for guiding the wave into an open end of a heat exchanger tube for testing the tube. The transducer assembly comprises a current-carrying coil of wire, a magnetostrictive material wrapped around the coil of wire, a mechanism for pressing the magnetostrictive material against an inner surface of the tube, and one or more biasing magnets placed in the vicinity of the current-carrying coil of wire and the magnetostrictive material.