High resolution self-mixing laser-Doppler vibrometry with a laser-diode-pumped microchip solid-state laser

Otsuka, Kenju; Kawai, Ryoji; Fukazawa, Takeki

doi:10.1109/cleoe.2000.909696

Cited by 1 publication

(1 citation statement)

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“…The non-contact type is characterized by high resolution and a wide range of frequencies and is in widespread use at present. Examples include the laser interferometer and laser position sensor (Park et al, 2001;Otsuka et al, 2000;Marsilia et al, 2000).…”

Section: Introductionmentioning

confidence: 98%

The development of A 3‐dimensional vibration measuring system with corner cubes and quadrant detectors(Invited)

Chen

Jywe

Hsieh

et al. 2010

Journal of the Chinese Institute of Engineers

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2010) The development of A 3-dimensional vibration measuring system with corner cubes and quadrant detectors (Invited) , Journal of the Chinese Institute of Engineers, 33:1, 71-80, ABSTRACTIn this paper, a new optical 3-dimensional vibrometer is presented. This system is composed of two orthogonally set up corner cubes (CC), a collimated laser source, two quadrant detectors (QD) and three beam-splitters (BS). The corner cubes are designed to be fixed to the vibrating object and reflect the laser source onto the quadrant detectors. Due to the optical characteristics of the corner cubes, the measuring results of the QD can be magnified twice and it is not affected by micrometer-angle. So, the three-dimensional vibration amplitude can be obtained. The resolution is about 50 nm. This system is characterized by three-dimensional measurement, high resolution, low cost, simple set up and wide bandwidth.

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Section: Introductionmentioning

confidence: 98%