Investigation of Wedge Waves Using Digital Shearing Speckle Interferometry

Yan, Shiling; Lomonosov, Alexey M.; Han, Bing; Zhang, Hongchao; Shen, Zhonghua; Ni, Xiaowu

doi:10.1007/s10765-014-1737-7

Cited by 2 publications

(3 citation statements)

References 16 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Usually, acoustical signals are detected with the polyvinylidene fluoride (PVDF)/piezoelectric transducer (PZT) [13,14] , optical beam deflection [2,15] , and a laser vibrometer [16] . However, with these techniques, the motion was recorded pointwise, and a long time was needed to finish the measurement [17,18] . In order to reduce the measurement time, full field measuring methods are preferred, such as thermography [19] , optical interferometry [20][21][22] , and digital shearography [17,18] .…”

Section: Introductionmentioning

confidence: 99%

“…However, with these techniques, the motion was recorded pointwise, and a long time was needed to finish the measurement [17,18] . In order to reduce the measurement time, full field measuring methods are preferred, such as thermography [19] , optical interferometry [20][21][22] , and digital shearography [17,18] . They have attracted considerable interest because of their advantages of real time, non-contact, whole field, and non-contaminating characteristics [17] .…”

Section: Introductionmentioning

confidence: 99%

“…In order to reduce the measurement time, full field measuring methods are preferred, such as thermography [19] , optical interferometry [20][21][22] , and digital shearography [17,18] . They have attracted considerable interest because of their advantages of real time, non-contact, whole field, and non-contaminating characteristics [17] . Compared to other methods, optical interferometry can give more accurate results.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation of the laser ultrasound propagation in K9 glass using optical interferometry

Zhang

et al. 2022

中国光学快报

Self Cite

View full text Add to dashboard Cite

The propagating of laser-generated ultrasonic waves in K9 glass was investigated. Many methods have been developed to detect the laser ultrasound since laser ultrasonic waves can be used to measure material parameters or characterize materials properties. In order to reduce the measuring time, a Mach-Zehnder interferometer, a full field measuring tool, was preferred in this paper. The ultrasonic wave was produced on the K9 glass surface by a Q-switched Nd:YAG laser absorbed in a liquid layer. The interferograms were then taken at various delay times by a CCD camera after single pulse induced laser ultrasonic waves. Ultrasonic waves in the K9 glass can be observed from interferogram images. The results provide an understanding of laser ultrasound propagation in K9 glass in the lifetime.

show abstract