PMID- 11367781
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20010607
LR  - 20190915
IS  - 0885-3010 (Print)
IS  - 0885-3010 (Linking)
VI  - 48
IP  - 1
DP  - 2001 Jan
TI  - The investigation of three-dimensional vibration for piezoelectric rectangular 
      parallelepipeds using the AF-ESPI method.
PG  - 142-53
AB  - Electronic speckle pattern interferometry (ESPI) is a powerful tool for the 
      full-field measurement of a deformed body. In this paper, a three-dimensional 
      vibrating block that couples the out-of-plane and in-plane motions is 
      investigated using the amplitude-fluctuation ESPI (AF-ESPI). This method 
      demonstrates the advantages of combining high processing speed, such as in the 
      subtraction method, with high fringe sensitivity, such as in the time-averaged 
      method. The optical system for AF-ESPI is then employed to analyze the volume 
      vibration of piezoelectric material for a rectangular parallelepiped 
      configuration. Based on the fact that fringe patterns measured by the AF-ESPI 
      method appear as a clear picture only at the resonant frequency, both the natural 
      frequencies and the out-of-plane and in-plane vibration mode shapes are 
      successfully obtained in this study. Finally, the impedance analysis as well as 
      the finite element method (FEM) with three-dimensional model are also conducted 
      to compare with the result obtained by AF-ESPI. It is shown that the numerical 
      calculation and the experimental result agree fairly well for both the resonant 
      frequency and the mode shape in three-dimensional configurations.
FAU - Ma, C C
AU  - Ma CC
AD  - Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan 
      106, Republic of China. cma@w3.me.ntu.edu.tw
FAU - Huang, C H
AU  - Huang CH
LA  - eng
PT  - Journal Article
PL  - United States
TA  - IEEE Trans Ultrason Ferroelectr Freq Control
JT  - IEEE transactions on ultrasonics, ferroelectrics, and frequency control
JID - 9882735
EDAT- 2001/05/23 10:00
MHDA- 2001/05/23 10:01
CRDT- 2001/05/23 10:00
PHST- 2001/05/23 10:00 [pubmed]
PHST- 2001/05/23 10:01 [medline]
PHST- 2001/05/23 10:00 [entrez]
AID - 10.1109/58.895923 [doi]
PST - ppublish
SO  - IEEE Trans Ultrason Ferroelectr Freq Control. 2001 Jan;48(1):142-53. doi: 
      10.1109/58.895923.