Calibrated Noncontact Exciters for Optical Modal Analysis | Zendy

Henrik O. Saldner | Zendy

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Calibrated Noncontact Exciters for Optical Modal Analysis

Author(s) -

Henrik O. Saldner

Publication year - 1996

Publication title -

shock and vibration

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.418

H-Index - 45

eISSN - 1875-9203

pISSN - 1070-9622

DOI - 10.1155/1996/926465

Subject(s) - exciter , magnet , electromagnetic coil , electromagnet , physics , reciprocity (cultural anthropology) , amplitude , optics , eddy current , pickup , acoustics , holography , modal analysis , planar , vibration , electrical engineering , engineering , computer science , psychology , social psychology , artificial intelligence , image (mathematics) , computer graphics (images)

Two types of exciters were investigated experimentally One of the exciters uses a small permanent magnet fastened on the object. The force is introduced by the change in the electromagnetic field from a coil via an air gap. The second exciter is an eddy-current electromagnet one. The amplitude of the forces from these exciters are calibrated by using dynamic reciprocity in conjunction with electronic holography. These forces strongly depend upon the distance between the exciter and the object.

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