Self-mixing digital closed-loop vibrometer for high accuracy vibration measurements

Magnani, Alessandro; Melchionni, Dario; Pesatori, Alessandro; Norgia, M.

doi:10.1016/j.optcom.2015.12.002

Cited by 37 publications

(20 citation statements)

References 39 publications

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“…Recently, a digital version for the electronic feedback loop was proposed, 57 able to optimize the feedback transfer function, due also to a careful system modeling. 58…”

Section: Vibrometer With Half-fringe Lockingmentioning

confidence: 99%

Overview of self-mixing interferometer applications to mechanical engineering

Donati

Norgia

2018

Opt. Eng.

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We present an overview of the applications of self-mixing interferometer (SMI) to tasks of interest for mechanical engineering, namely high-resolution measurement of linear displacements, measurements of angles (tilt, yaw, and roll), measurements of subnanometer vibrations, and absolute distance, all on a remote target-representative of the tool-carrying turret of a tool-machine. Along with the advantages of SMI-compactness, low cost, minimum invasiveness, ease of use, and good accuracy, we illustrate the typical performance achieved by the basic SMI sensors, that is, the versions requiring a minimum of signal processing and discuss special features and problems of each approach.

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“…Recently, a digital version for the electronic feedback loop was proposed, 57 able to optimize the feedback transfer function, due also to a careful system modeling. 58…”

Section: Vibrometer With Half-fringe Lockingmentioning

confidence: 99%

Overview of self-mixing interferometer applications to mechanical engineering

Donati

Norgia

2018

Opt. Eng.

Self Cite

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“…Its precision can reach as high as λ∕47.6, and the absolute error of amplitude is ∼0.075 μm. Magnani et al 53 presented a method on diode lasers including an electronic feedback loop for increasing the measurement resolution. This system is able to measure vibrations up to 110 mm peak-to-peak at a distance of 1 m, with bandwidth between 5 Hz and 15 kHz and resolution of about 60 nm.…”

Section: Vibration Measurementmentioning

confidence: 99%

“…As mentioned above in Ref. 53, the simultaneous measurement of vibration and the angle of the position of the target relative to the incident beam can be realized. The rotation angle over a range of 0.075 deg can be measured, with the error <11.7%.…”

Section: Angle Measurementmentioning

confidence: 99%

Laser feedback interferometry and applications: a review

Niu

2017

Opt. Eng

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The progress on laser feedback interferometry technology is reviewed. Laser feedback interferometry is a demonstration of interferometry technology applying a laser reflected from an external surface, which has features including simple structure, easy alignment, and high sensitivity. Theoretical analysis including the Lang-Kobayashi model and three-mirror model are conducted to explain the modulation of the laser output properties under the feedback effect. In particular, the effect of frequency and polarization shift feedback effects are analyzed and discussed. Various applications on various types of lasers are introduced. The application fields range from metrology, to physical quantities, to laser parameters and other applications. The typical applications of laser feedback technology in industrial and research fields are discussed. Laser feedback interferometry has great potential to be further exploited and applied.

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“…The SMI has a very simple interferometry setting. This is because SMI only requires a collimator and does not require optical components like splitter rays [2]. The principle of Self-Mixing Interferometry is a compilation of light from a laser fired towards the target, then several lights reflected by the target and are under arrest detector in the laser.…”

Section: Introductionmentioning

confidence: 99%

Analysis of Feedback Parameter with Vibration Sensor on Signal Self-Mixing Interferometry

Ariyanti

Endarko

Rubiyanto

2019

IJPS

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In the research aims to analyzed feedback parameter on Self-Mixing Interferometry (SMI) signals. It is because the feedback parameter is one of the determined parameters in SMI vibration sensor research. The experimental apparatus consists of a laser diode as the light source, mirror as a target, collimator as light alignment, and PLX-DAQ as data acquisition executed by Arduino Uno. The principle of data retrieval with the manner of the light source is directed exactly perpendicular to the vibrating target, then reflected and arrested by the detector (photodiode) contained in the laser diode. Light arrested by the photodiode in the form of optical value then automatically converted into voltage value displayed on a personal computer (PC). This feedback on SMI is obtained by variation of the vibration frequency given to a target. The variation of vibration given is 10-100 Hz with 10 Hz increment and each frequency is taken 1000 data. Based on the research that has been done then results obtained at the frequency of 10-30 Hz feedback does not appear because the vibration small so that the vibration sensor is less than optimal. Feedbacks appear at frequencies 40 Hz and 50 Hz but are clearly visible at frequencies 50 Hz. While at 60-80 Hz frequency feedback begins to disappear. The existence of feedback on frequency 50 Hz indicated that vibration sensors on SMI can be applied to industry and medical field.

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Self-mixing digital closed-loop vibrometer for high accuracy vibration measurements

Cited by 37 publications

References 39 publications

Overview of self-mixing interferometer applications to mechanical engineering

Overview of self-mixing interferometer applications to mechanical engineering

Laser feedback interferometry and applications: a review

Analysis of Feedback Parameter with Vibration Sensor on Signal Self-Mixing Interferometry

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