Simulation and experimental studies of a double-fiber angular displacement sensor

Zhu, Ruixue; Jing, Ruiping; Cheng, Yuanbing

doi:10.1016/j.optlastec.2016.10.007

Cited by 11 publications

(4 citation statements)

References 14 publications

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“…Table 1 shows a comparison between the proposed sensor and several typical miniaturized optical angular sensors. These fiber-optic sensors generally have a large sensing range of up to ±7.2° [ 38 , 39 ]. The proposed sensor showed a much better sensitivity and a smaller range than the fiber-based type and was comparable with an autocollimator [ 17 ].…”

Section: Discussionmentioning

confidence: 99%

An Ultracompact Angular Displacement Sensor Based on the Talbot Effect of Optical Microgratings

Yang

et al. 2023

Sensors

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Here, we report an ultracompact angular displacement sensor based on the Talbot effect of optical microgratings. Periodic Talbot interference patterns were obtained behind an upper optical grating. By putting another grating within the Talbot region, the total transmission of the two-grating structure was found to be approximatively in a linear relationship with the relative pitch angle between the two gratings, which was explained by a transversal shift of the Talbot interference patterns. The influence of the grating parameters (e.g., the grating period, the number of grating lines and the gap between the two gratings) was also studied in both a simulation and an experiment, showing a tunable sensitivity and range by simply changing the grating parameters. A sensitivity of 0.19 mV/arcsec was experimentally obtained, leading to a relative sensitivity of 0.27%/arcsec within a linear range of ± 396 arcsec with the 2 μm-period optical gratings. Benefitting from tunable properties and an ultracompact structure, we believe that the proposed sensor shows great potential in applications such as aviation, navigation, robotics and manufacturing engineering.

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Section: Discussionmentioning

confidence: 99%

An Ultracompact Angular Displacement Sensor Based on the Talbot Effect of Optical Microgratings

Yang

et al. 2023

Sensors

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“…To increase the range to several millimeters by preserving a good resolution, the inclined mirror configuration was duplicated; this duplication leads to a grating of successive flat mirrors. In the case of a grating of flat mirrors, two fiber-optic probes are used to avoid the transition between two consecutive steps (Figure 5) [16,20].…”

Section: Sensor Principlementioning

confidence: 99%

High Precision Machining of a Displacement Sensor for Helicoidal Motions

Elrawashdeh

Revel

Prelle

et al. 2022

Int. J. Precis. Eng. Manuf.

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This research study presents the design and the high precision manufacture procedure of a fiber-optic displacement sensor. It is composed of two fiber-optic probes associated with a structure of a cones' grating. The sensor is characterized by its ability to measure the linear displacement for an axis performing a helicoidal motion. This motion has been demonstrated on a high precision lathe; where the spindle provided the rotational motion, associated to a translational motion on the linear stage. This allowed to obtain the two simultaneous motions. The displacement of the translational stage is measured by the sensor in real time.Firstly, a highly precise geometric model of the reflector part for the sensor was developed. This model provided a specific geometry for the cones-assembled grating, which has been precisely manufactured. The geometric parameters and the surface characteristics of each step in the fabricated grating were both identified in situ on the lathe. The agreement between simulation and experimental results is excellent. The performances of the fiber-optic displacement sensor were identified in-situ on the lathe. The analysis of the voltage output signals from the two fiberoptic probes is used to measure the grating displacement. The unbalanced rotation due to non-centered axes was also characterized. The sensor provided a micrometric resolution, on a measurement range of more than one centimeter.

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“…To increase the range to several millimeters by preserving a good resolution, the inclined mirror con guration was duplicated; this duplication leads to a grating of successive at mirrors. In the case of a grating of at mirrors, two ber-optic probes are used to avoid the transition between two consecutive steps (Figure 5) [7,8].…”

Section: Sensor Principlementioning

confidence: 99%

“…Optical sensors based on bers are the ones used in this study, because of several advantages, such as small size, hard environment tolerance, impact of electromagnetic elds, exibility and the structural simplicity [6,7].…”

Section: Introductionmentioning

confidence: 99%

High precision machining of a displacement sensor for helicoidal motions

Elrawashdeh¹,

Revel²,

Prelle³

et al. 2021

Preprint

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This research study presents the design and the high precision manufacture procedure of a fiber-optic displacement sensor. It is composed of two fiber-optic probes associated with a structure of a cones’ grating. The sensor is characterized by its ability to measure the linear displacement for an axis performing a helicoidal motion. This motion has been demonstrated on a high precision lathe; where the spindle provided the rotational motion, associated to a translational motion on the linear stage. This allowed to obtain the two simultaneous motions. The displacement of the translational stage is measured by the sensor in real time.Firstly, a highly precise geometric model of the reflector part for the sensor was developed. This model provided a specific geometry for the cones-assembled grating, which has been precisely manufactured. The geometric parameters and the surface characteristics of each step in the fabricated grating were both identified in situ on the lathe. The agreement between simulation and experimental results is excellent. The performances of the fiber-optic displacement sensor were identified in-situ on the lathe. The analysis of the voltage output signals from the two fiber-optic probes is used to measure the grating displacement. The unbalanced rotation due to non-centered axes was also characterized. The sensor provided a micrometric resolution, on a measurement range of more than one centimeter.

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Simulation and experimental studies of a double-fiber angular displacement sensor

Cited by 11 publications

References 14 publications

An Ultracompact Angular Displacement Sensor Based on the Talbot Effect of Optical Microgratings

An Ultracompact Angular Displacement Sensor Based on the Talbot Effect of Optical Microgratings

High Precision Machining of a Displacement Sensor for Helicoidal Motions

High precision machining of a displacement sensor for helicoidal motions

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