公开(公告)号：US11763476B2

公开(公告)日：2023-09-19

申请号：US17857279

申请日：2022-07-05

Applicant: Kettering University

Inventor： Javad Baqersad

IPC: G06T7/593 ,  H04N13/243 ,  G01B11/245 ,  G06T3/40

CPC classification number: G06T7/596 ,  G01B11/245 ,  G06T3/4038 ,  H04N13/243 ,  G06T2207/20056

Abstract: A system for measuring total operating deflection shapes of a structure includes one or more imagers, each including two cameras spaced apart from one another and each oriented and positioned to have corresponding fields of view of a different corresponding section of the structure, with the corresponding sections that may include overlap area of the structure within each of the different sections of the structure. Each of the cameras generates a corresponding data stream, which is communicated to a controller, which is configured to measure the response of the structure to an excitation, such as a vibration or an impulse. The system is configured to convert time-domain data from each of the data streams to the frequency-domain data using a Fourier Transform algorithm and stitching the shapes to obtain the total operating deflection shapes of the structure by scaling and stitching together the frequency-domain data.

公开(公告)号：US11410324B2

公开(公告)日：2022-08-09

申请号：US16426218

申请日：2019-05-30

Applicant: Kettering University

Inventor： Javad Baqersad

IPC: G06T7/593 ,  H04N13/243 ,  G01B11/245 ,  G06T3/40

Abstract: A system for measuring total operating deflection shapes of a structure includes one or more imagers, each including two cameras spaced apart from one another and each oriented and positioned to have corresponding fields of view of a different corresponding section of the structure, with the corresponding sections that may include overlap area of the structure within each of the different sections of the structure. Each of the cameras generates a corresponding data stream, which is communicated to a controller, which is configured to measure the response of the structure to an excitation, such as a vibration or an impulse. The system is configured to convert time-domain data from each of the data streams to the frequency-domain data using a Fourier Transform algorithm and stitching the shapes to obtain the total operating deflection shapes of the structure by scaling and stitching together the frequency-domain data.