Improvement of Vibration Amplitude Measurement Method of Single layer CFRP Plate by Digital Holographic Interferometry

2018 ◽  
Vol 2018.56 (0) ◽  
pp. 241
Author(s):  
Hiroya OZAKI ◽  
Hiroki MATSUMOTO
Keyword(s):  
Holographic Interferometry ◽  
Vibration Amplitude ◽  
Measurement Method ◽  
Single Layer ◽  
Cfrp Plate ◽  
Amplitude Measurement

Real Time Acoustic Imaging by Holographic Interferometry

1980 ◽  
Vol 2 (4) ◽  
pp. 313-323 ◽  
Author(s):  
Amin Hanafy ◽  
Mauro Zambuto
Keyword(s):  
Real Time ◽  
Holographic Interferometry ◽  
Vibration Amplitude ◽  
Imaging System ◽  
Mechanical Vibration ◽  
Visual Image ◽  
Acoustic Imaging ◽  
Acoustic Image ◽  
Vibration Pattern ◽  
Amplitude Amplification

A two-step real time acoustic imaging system is presented. The system incorporates a novel acoustic image coupler which transfers an acoustical interference pattern from a water-bounded to an air-bounded surface with vibration amplitude amplification. An original technique termed step-biased real time holographic interferometry is used to convert the amplified mechanical vibration pattern, which carries all information about the insonified object, into a visual image with improved sensitivity.

A Four Point Based HRG Resonator Amplitude Measurement Method and the Error Analysis

2015 ◽  
Vol 22 (9) ◽  
pp. 83-86 ◽  
Author(s):  
李 灿 LI Can ◽  
汪立新 WANG Li xin ◽  
黄松涛 HUANG Song tao ◽  
田 颖 TIAN Ying ◽  
陈 伟 CHEN Wei
Keyword(s):  
Error Analysis ◽  
Measurement Method ◽  
Amplitude Measurement

scholarly journals Vibration Analysis of Membrane by Time Average In-Line Digital Holographic Interferometry

2006 ◽  
Vol 326-328 ◽  
pp. 23-26
Author(s):  
Vijay Raj Singh ◽  
Anand Krishna Asundi
Keyword(s):  
Mode Shape ◽  
Holographic Interferometry ◽  
Vibration Analysis ◽  
Average Method ◽  
Vibration Amplitude ◽  
Digital Holography ◽  
Experimental Results ◽  
Time Average ◽  
Reconstructed Wave

In this paper, in-line digital holography is combined with time average method and applied for vibration analysis of an aluminum membrane. The numerically reconstructed wave from time average holograms contains information of mode shape and mean deformation of the vibrating objects. At lower amplitudes of vibration only the deformation fringes are observed and as the amplitude is increases, the Bessel fringes representing the time average vibration amplitude also become visible. Experimental results for a 10mm size membrane are presented.

Improved holographic method for vibration amplitude measurement from nano to microscale

2014 ◽  
Author(s):  
Pavel Psota ◽  
Vít Lédl ◽  
Roman Doleček ◽  
Jan Václavík ◽  
Václav Kopecký
Keyword(s):  
Vibration Amplitude ◽  
Holographic Method ◽  
Amplitude Measurement

New possibilities for vibration-amplitude measurement by heterodyne laser vibrometer

2000 ◽  
Vol 43 (2) ◽  
pp. 140-143
Author(s):  
V. G. Atavin ◽  
A. A. Mokhnatov ◽  
Yu. V. Khudyakov
Keyword(s):  
Vibration Amplitude ◽  
Laser Vibrometer ◽  
Amplitude Measurement
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