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Laser-self-mixing interferometry for mechatronics applications.

Ottonelli S, Dabbicco M, De Lucia F, di Vietro M, Scamarcio G - Sensors (Basel) (2009)

Bottom Line: We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target.The prototype system exploits the self-mixing technique and consists only of a laser head, equipped with six laser sources, and a suitably designed reflective target.The feasibility of the system was validated experimentally for both single or multi-degrees-of-freedom measurements, thus demonstrating a simple and inexpensive alternative to costly and bulky existing systems.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento Interateneo di Fisica "M. Merlin", Università di Bari, and CNR-INFM Laboratorio Regionale "LIT3", Via Amendola 173, I-70126, Bari, Italy; E-Mails: dabbicco@fisica.uniba.it ; delucia@fisica.uniba.it ; divietro@fisica.uniba.it ; scamarcio@fisica.uniba.it.

ABSTRACT
We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target. The prototype system exploits the self-mixing technique and consists only of a laser head, equipped with six laser sources, and a suitably designed reflective target. The feasibility of the system was validated experimentally for both single or multi-degrees-of-freedom measurements, thus demonstrating a simple and inexpensive alternative to costly and bulky existing systems.

No MeSH data available.


Related in: MedlinePlus

(a) Possible arrangement of the six laser sources Li and (b) of the corresponding target configuration in a 6 DOFs sensor. Dimensions are d = 50 mm, (y4,z4) = (65,15) mm, M1 = 70×70 mm2, M2 = 10×60 mm2, M3 = 60×50 mm2. Ti (i = 1,2,3) indicate the fixed spots of Li (i = 1,2,3). Ti (i = 4,5,6) indicate the point of incidence of Li (i = 4,5,6) when the target is at the maximum distance xmax. For x < xmax T4 moves horizontally away from the z-axis and T5,6 move vertically away from the y-axis.
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f13-sensors-09-03527: (a) Possible arrangement of the six laser sources Li and (b) of the corresponding target configuration in a 6 DOFs sensor. Dimensions are d = 50 mm, (y4,z4) = (65,15) mm, M1 = 70×70 mm2, M2 = 10×60 mm2, M3 = 60×50 mm2. Ti (i = 1,2,3) indicate the fixed spots of Li (i = 1,2,3). Ti (i = 4,5,6) indicate the point of incidence of Li (i = 4,5,6) when the target is at the maximum distance xmax. For x < xmax T4 moves horizontally away from the z-axis and T5,6 move vertically away from the y-axis.

Mentions: Figure 13 reports a possible configuration of a unique target for a 6-DOFs self-mixing system, chosen in order to optimize the geometry and the compactness of the system. The target is composed by a squared mirror M1 lying in the yz plane for the measurement of linear displacement, yaw and pitch, a rectangular mirror M2 tilted by a yaw α for the measurement of straightness, and a second rectangular mirror M3 tilted by a pitch β for the measurement of flatness and roll.


Laser-self-mixing interferometry for mechatronics applications.

Ottonelli S, Dabbicco M, De Lucia F, di Vietro M, Scamarcio G - Sensors (Basel) (2009)

(a) Possible arrangement of the six laser sources Li and (b) of the corresponding target configuration in a 6 DOFs sensor. Dimensions are d = 50 mm, (y4,z4) = (65,15) mm, M1 = 70×70 mm2, M2 = 10×60 mm2, M3 = 60×50 mm2. Ti (i = 1,2,3) indicate the fixed spots of Li (i = 1,2,3). Ti (i = 4,5,6) indicate the point of incidence of Li (i = 4,5,6) when the target is at the maximum distance xmax. For x < xmax T4 moves horizontally away from the z-axis and T5,6 move vertically away from the y-axis.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3297133&req=5

f13-sensors-09-03527: (a) Possible arrangement of the six laser sources Li and (b) of the corresponding target configuration in a 6 DOFs sensor. Dimensions are d = 50 mm, (y4,z4) = (65,15) mm, M1 = 70×70 mm2, M2 = 10×60 mm2, M3 = 60×50 mm2. Ti (i = 1,2,3) indicate the fixed spots of Li (i = 1,2,3). Ti (i = 4,5,6) indicate the point of incidence of Li (i = 4,5,6) when the target is at the maximum distance xmax. For x < xmax T4 moves horizontally away from the z-axis and T5,6 move vertically away from the y-axis.
Mentions: Figure 13 reports a possible configuration of a unique target for a 6-DOFs self-mixing system, chosen in order to optimize the geometry and the compactness of the system. The target is composed by a squared mirror M1 lying in the yz plane for the measurement of linear displacement, yaw and pitch, a rectangular mirror M2 tilted by a yaw α for the measurement of straightness, and a second rectangular mirror M3 tilted by a pitch β for the measurement of flatness and roll.

Bottom Line: We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target.The prototype system exploits the self-mixing technique and consists only of a laser head, equipped with six laser sources, and a suitably designed reflective target.The feasibility of the system was validated experimentally for both single or multi-degrees-of-freedom measurements, thus demonstrating a simple and inexpensive alternative to costly and bulky existing systems.

View Article: PubMed Central - PubMed

Affiliation: Dipartimento Interateneo di Fisica "M. Merlin", Università di Bari, and CNR-INFM Laboratorio Regionale "LIT3", Via Amendola 173, I-70126, Bari, Italy; E-Mails: dabbicco@fisica.uniba.it ; delucia@fisica.uniba.it ; divietro@fisica.uniba.it ; scamarcio@fisica.uniba.it.

ABSTRACT
We report on the development of an all-interferometric optomechatronic sensor for the detection of multi-degrees-of-freedom displacements of a remote target. The prototype system exploits the self-mixing technique and consists only of a laser head, equipped with six laser sources, and a suitably designed reflective target. The feasibility of the system was validated experimentally for both single or multi-degrees-of-freedom measurements, thus demonstrating a simple and inexpensive alternative to costly and bulky existing systems.

No MeSH data available.


Related in: MedlinePlus