Non-contact evaluation of the resonant frequency of a microstructure using ultrasonic wave |
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| Authors: | Xin Kang Xiaoyuan He CJ Tay C Quan |
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| Institution: | [1]Department of Applied Mechanics, Nanjing University of Science and Technology, 210094 Nanjing, China [2]Institute of Engineering Mechanics, Southeast University,210096 Nanjing, China [3]Department of Mechanical Engineering, National Universityof Singapore, 9 Engineering Drive 1, 117576 Singapore, Singapore |
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| Abstract: | This paper presents a novel non-contact method for evaluating the resonant frequency of a microstructure. Firstly,the microstructure under test is excited by ultrasonic waves.This excitation method does not impose any undefined load on the specimen like the electrostatic excitation and also this is the first actual use of ultrasonic wave for exciting a microstructure in the literature.Secondly,the amplitudes of the microstructure are determined by image edge detection using a Mexican hat wavelet transform o... |
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| Keywords: | Non-contact Microstructure Resonant frequency Ultrasonic wave Image processing |
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