Heterodyne laser-Doppler vibrometer with a slow-shear-mode Bragg cell for vibration measurements up to 1.2 GHz

2008 ◽  
Author(s):  
Christian Rembe ◽  
Sebastian Boedecker ◽  
Alexander Dräbenstedt ◽  
Fred Pudewills ◽  
Georg Siegmund
Keyword(s):  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Shear Mode ◽  
Vibration Measurements

Accuracy and noise analyses of 3D vibration measurements using laser Doppler vibrometer

Measurement ◽  
2016 ◽  
Vol 94 ◽  
pp. 883-892 ◽  
Author(s):  
Hossam Khalil ◽  
Dongkyu Kim ◽  
Joonsik Nam ◽  
Kyihwan Park
Keyword(s):  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Vibration Measurements

Temperature coefficient of Young’s modulus of silver microwhiskers determined by a laser Doppler vibration measurement

2021 ◽  
pp. 2150350
Author(s):  
Yijun Jiang ◽  
Mingyuan Lu ◽  
Shiliang Wang ◽  
Han Huang
Keyword(s):  
Temperature Dependence ◽  
Temperature Coefficient ◽  
Single Crystals ◽  
Young’S Modulus ◽  
Vapor Deposition ◽  
Physical Vapor Deposition ◽  
Young's Modulus ◽  
Laser Doppler Vibrometer ◽  
Laser Doppler ◽  
Vibration Measurement

Temperature dependence of Young’s modulus of Ag microwhiskers was determined by a laser Doppler vibrometer. The Ag whiskers with diameters in sub-microns were synthesized by the use of physical vapor deposition (PVD). They have a five-fold twinned structure grown along the [1 1 0] direction. The temperature coefficient of Young’s modulus was measured to be [Formula: see text] ppm/K in the range of 300 K to 650 K. The measured values are very close to the reported values of [Formula: see text] ppm/K for bulk Ag single crystals. This finding can benefit the design of Ag-based micro/nano-electromechanical systems or micro/nano-interconnectors operated at elevated or lowered temperatures.

Sign in / Sign up

Export Citation Format

Share Document