Patent ID: 9109999
Filing Date: 2015-08-18
Classification: G01N

Abstract:
1. A method of performing self-diagnostics on an array of transducers, comprising: measuring an impedance of a selected one of the transducers to detect whether the selected one of the transducers is missing, or whether an electrical connection to the selected one of the transducers is damaged; generating pitch-catch signals along signal transmission paths between one or more pairs of the transducers; analyzing multiple ones of the pitch-catch signals between multiple pairs of the transducers according to selected criteria to determine whether one or more transducers of the pairs of the transducers are damaged, partially bonded, or fully unbonded; determining if one or more transducers of the pairs of the transducers are determined to be damaged, partially bonded, or fully unbonded: if none of the transducers of the pairs of the transducers are determined to be damaged, partially bonded, or fully unbonded: