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Citations
14 | Displacement measurements using a self-mixing laser diode under moderate feedback,” Instrumentation and Measurement - Bes, Plantier, et al. - 2006 |
12 |
Developing self-mixing interferometry for instrumentation and measurements
- Donati
- 2012
(Show Context)
Citation Context ...dulated SM fringes when the SM signal is deformed bysmodulation and fluctuations (such as shown in Fig. 4). Underssuch conditions, standard fringe detection techniques such asszero-crossing detection =-=[1]-=-, SM derivative detection [9], orsSM hysteresis based technique [16] would fail as such a SMssignal is no more centered at zero, is devoid of hysteresissbased symmetry, has varying fringe amplitude an... |
9 | Improving the measurement performance for a self-mixing interferometrybased displacement sensing system - Fan, Yu, et al. - 2011 |
8 |
Interferometric Measurements of Displacement on a Diffusing Target by a Speckle Tracking Technique
- Norgia, Donati, et al.
- 2001
(Show Context)
Citation Context ... the laser wavelength (λ) [7]. For smallsdisplacements of the target, speckle may not affect the SMssignals if the displacement is much smaller than the typicalslongitudinal size of the speckle grain =-=[8]-=-. For largersdisplacements, speckle can cause amplitude fading (Fig. 1).sSuch an amplitude modulation thus demands additionalsThis work was supported in part by the Agence Nationale de la Recherches(A... |
6 |
A Displacement-Measuring Instrument Utilizing Self-Mixing Interferometry
- Norgia, Donati
- 2003
(Show Context)
Citation Context ...ponents. Anothersapproach uses two piezo-actuators to move a lens for a specklestracking technique [8]. An improved version of it adds a liquidscrystal attenuator to maintain moderate feedback regime =-=[11]-=-.sIn [12], a SM vibrometer able to detect the deformed fringesshas been presented though harmonic vibration results are onlysof an order of 10-5 m. Finally, a voltage controlled liquid lenssand a doub... |
6 |
Fully analog self-mixing laser vibrometer
- Norgia, Pesatori
- 2011
(Show Context)
Citation Context ...ee shaded area of Fig. 5). It can be done either bysusing fringe counting providing λ/2 resolution as proposed ins[18] or by unwrapping the SM signal providing at least λ/10sresolution as proposed in =-=[19]-=-. As the unwrapping of SMssignal requires a normalization of each and every SM fringe,sso fringe location information is used to segment the SMssignal P(t) for each and every detected SM fringe. A sca... |
5 | Laser Interferometry, in Unlocking Dynamical Diversity—Optical Feedback Effects on Semiconductor - Giuliani, Donati - 2005 |
4 |
F.P.; , "A Compact Three Degrees-of-Freedom Motion Sensor Based on the Laser-Self-Mixing Effect
- Ottonelli, Lucia, et al.
- 2008
(Show Context)
Citation Context ...arge displacement SM sensors reported earliersindicates that the use of co-operative targets has allowedsavoiding speckle effect [5] and even helped in improvingsmeasurements by an order of magnitude =-=[9]-=-. On the othershand, long range SM displacement sensing has also beensachieved by electronically keeping the operating point of thesSM interferometer fixed at the half-fringe [10] though thessensor st... |
4 |
accelerometer embedded in a self-mixing displacement sensor for parasitic vibration compensation
- Zabit, aI, et al.
(Show Context)
Citation Context ...re the sensor would undergosimportant extraneous mechanical movements while ensuringscorrect measurement. The influence of the extraneoussmovements can be corrected by using an embeddedsaccelerometer =-=[17]-=-. Nonetheless, such an arrangementsnecessitates improved processing of the SM signal obtainedsunder given conditions. This also incited us to test thesproposed long range SM sensor under similar condi... |
3 | Self-Mixing Laser Doppler Spectra of Extracorporeal Blood Flow: A - Norgia, Pesatori, et al. - 2012 |
3 |
Self-mixing imaging sensor using a monolithic VCSEL array with parallel readout
- Lim, Nikolic, et al.
(Show Context)
Citation Context ...o recover thesvariations in the optical output power of the laser diode P(t)sthough it is also possible to recover equivalent interferometricsinformation by using LD junction voltage, as suggested in =-=[13]-=-sfor LD packages having no built-in PD. A lens is then used tosfocus the laser beam on to the target. Finally, P(t) is used tosrecover the target displacement D(t) [1-2]. The SM sensor issbased on a H... |
3 |
Adaptive transition detection algorithm for a self-mixing displacement sensor
- Zabit, Bosch, et al.
- 2009
(Show Context)
Citation Context ... fact, variations in C causeschanges in the SM feedback regimes varying from weak tosmoderate to strong feedback, where each regime would requiresspecific signal processing for displacement retrieval =-=[16]-=-.sHence, correct displacement can be recovered easily as long assthe signal is not corrupted by the presence of speckle.sOn the other hand, this basic processing does not work forsspeckle affected SM ... |
2 |
Simultaneous measurement of linear and transverse displacements by laser self-mixing
- Ottonelli, Dabbicco, et al.
- 2009
(Show Context)
Citation Context ...versa) which may require further signal processing [1-2].sA look into large displacement SM sensors reported earliersindicates that the use of co-operative targets has allowedsavoiding speckle effect =-=[5]-=- and even helped in improvingsmeasurements by an order of magnitude [9]. On the othershand, long range SM displacement sensing has also beensachieved by electronically keeping the operating point of t... |
2 |
Spectral broadening caused by dynamic speckle in self-mixing velocimetry sensors”, Opt
- Kliese, Rakić
- 2012
(Show Context)
Citation Context ...ct Identifier: 10.1109/JSEN.2012.2227718sI. INTRODUCTIONself-mixing (SM) or optical feedback interferometry [1-3]shas been regularly used for displacement sensing [4-5]sthough the presence of speckle =-=[6]-=- has often reduced the rangesor even the possibility of correct measurement. Traditionally,sefforts have been invested to avoid speckle, mostly by trackingsthe strong signal by means of electro-mechan... |
2 |
Analysis and control of speckle effects in self-mixing interferometry
- Atashkhooei, Royo, et al.
(Show Context)
Citation Context ...issstrongly affected by speckle.sSpeckle caused amplitude modulation (see Fig. 1) of a SMssignal is influenced by the target surface roughness, the lasersspot size as well as the laser wavelength (λ) =-=[7]-=-. For smallsdisplacements of the target, speckle may not affect the SMssignals if the displacement is much smaller than the typicalslongitudinal size of the speckle grain [8]. For largersdisplacements... |
2 |
Self-mixing laser diode vibrometer", Meas
- Giuliani, Bozzi-Pietra, et al.
- 2003
(Show Context)
Citation Context ...an order of magnitude [9]. On the othershand, long range SM displacement sensing has also beensachieved by electronically keeping the operating point of thesSM interferometer fixed at the half-fringe =-=[10]-=- though thessensor still requires additional optical components. Anothersapproach uses two piezo-actuators to move a lens for a specklestracking technique [8]. An improved version of it adds a liquids... |
1 | Xiajuan Dai; Wenhua Guo; , “All-Fiber SelfMixing Interferometer Based - Lu, Wang - 2011 |
1 |
Svelto,“Novel Measurement Method for Signal Recovery in Optical Vibrometer
- Norgia, C
- 2008
(Show Context)
Citation Context ...Anothersapproach uses two piezo-actuators to move a lens for a specklestracking technique [8]. An improved version of it adds a liquidscrystal attenuator to maintain moderate feedback regime [11].sIn =-=[12]-=-, a SM vibrometer able to detect the deformed fringesshas been presented though harmonic vibration results are onlysof an order of 10-5 m. Finally, a voltage controlled liquid lenssand a double-headed... |
1 |
Envelope Extraction Technique for a SelfMixing Centimetric Displacement Laser
- Zabit, Bosch
- 2011
(Show Context)
Citation Context ...tes how the cut-off value is used to help identifysthe segments indicating the presence of a distinct SM fringesfrom the segments devoid of this information. As compared tosthe algorithm presented in =-=[18]-=- which used a fixed cut-offsvalue (see Fig. 5 of [18]), the current algorithm uses a dynamicscut-off indicative of local variations of SM signal. This resultssin a better detection of deeply modulated... |