Design and Performance of a Laser-Based Compact Position Sensor for Long Standoff Distance

Dhawan, Ravi; Kawade, Nitin; Dikshit, Biswaranjan

doi:10.1109/jsen.2018.2849716

Cited by 8 publications

(3 citation statements)

References 18 publications

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“…In order to solve the problem of reducing the accuracy of long-distance measurement, the optical structure design and software algorithm compensation can be improved. Ravi [5] used a double mirror folded optical structure to design a compact laser sensor to realize long-distance measurement, but the accuracy is still low. Li [6] took DOPC technology for wavefront aberration correction to reduce the drift caused by disturbance during beam propagation.…”

Section: Introductionmentioning

confidence: 99%

Uncertainty analysis and optimization design of long-distance laser triangulation displacement sensor applied to dynamic object

Nan,

Gong,

Tao

2024

International Conference on Optical and Photonic Engineering (icOPEN 2023)

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The principle of laser triangulation has been widely used in various high-precision measurement due to its advantages of high accuracy, fast response speed and simple structure. However, the laser triangulation method still has some limitations for the measurement of dynamic object, and the accuracy of laser location will be significantly reduced especially when the working distance becomes longer. We have carried out the development and performance optimization of a long-distance laser triangulation displacement sensor for the application of dynamic object. The measurement uncertainty is analyzed when the laser dithering, laser drifting and object motion are all taken into account. Then, reflectors are added to the optical path structure of traditional laser triangulation system with the aim to improving its sensitivity and expanding its working range. The experiment results show that the repeatability of our designed optical system is 2.9μm and the imaging uniformity is 86.23% when the working distance is of 1300mm.

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Section: Introductionmentioning

confidence: 99%

Uncertainty analysis and optimization design of long-distance laser triangulation displacement sensor applied to dynamic object

Nan,

Gong,

Tao

2024

International Conference on Optical and Photonic Engineering (icOPEN 2023)

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“…Standoff Distance (SD), and at certain pre-defined angle i.e. impingement angle [5]. The inner diameter of the jets is considered the paramount parameter since it determines the final speed and cross-sectional areas of the jet for a particular gas stress.…”

Section: Introductionmentioning

confidence: 99%

Nonconventional Machining and Materials Processing: Proposed Design for Abrasive Jet Machining (AJM)

2021

JMC

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High degree Abrasive Jet (AJ) is applied in Abrasive Jet Machining (AJM) as a process that is based of Machine-driven Energy (MDE). The abrasives are applied in the removal of resources from work surfaces based on impact erosion. AJ is generated through the acceleration of very fine abrasive particles in considerably gas that has been pressurizes i.e. carrier gas. In this case, jets are utilized to transform this pressurized energy into kinetic energy, which is also directs jets to the work surfaces at an impingement angle. During the impact, rigid abrasive particles are used to slowly remove resources through erosion and with the assistance of brittle fracture. This paper evaluates and recommends a design for AJM. The various components have also been chosen after the relevant design assessment procedures have been done. The AJM model has been design with reference to the present components.

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“…A noncontact optical sensing system has been developing rapidly and pushes the exploitation of new applications including motion tracking, pilotless automobile, precision machining, and laser radars. − In these applications, noncontact optical measurements come in a wide variety of displacements, angles, frequencies, sizes, shapes, and so forth, − which could be realized by a special photodetector called position-sensitive detector (PSD). − The working principle of PSD is built on lateral photoelectrical effect, and the existing PSDs are mainly constructed on Si-PN/PIN junctions. − High spatial resolution (<1 μm) and fast response (∼μs) are the advantages of PSD in optical measurements. Most of the sensing applications require the working wavelength of the sensing system at infrared (IR) region, especially at optical communication band (1330–1550 nm), for the purpose of eye safety.…”

mentioning

confidence: 99%

Graphene-Based Infrared Position-Sensitive Detector for Precise Measurements and High-Speed Trajectory Tracking

Liu

Wang

et al. 2019

Nano Lett.

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Noncontact optical sensing plays an important role in various applications, for example, motion tracking, pilotless automobile, precision machining, and laser radars. A device with features of high resolution, fast response, and safe detection (operation wavelength at infrared (IR)) is highly desired in such applications. Here, a near IR position-sensitive detector constructed by graphene-Ge Schottky heterojunction has been demonstrated. The device shows high responsivity (minimum detectable power of ∼10 nW), excellent spatial resolution (<1 μm), fast response time (∼μs), and could operate in a wide spectral range (from visible to ∼1600 nm). Applications of precise angle (∼5 × 10–6 degree) and vibration frequency (up to 10 kHz) measurements, as well as the trajectory tracking of a high-speed infrared target (∼100 km/h), have been realized based on this device. This work therefore provides a promising route for a high-performance noncontact IR optical sensing system.

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Design and Performance of a Laser-Based Compact Position Sensor for Long Standoff Distance

Cited by 8 publications

References 18 publications

Uncertainty analysis and optimization design of long-distance laser triangulation displacement sensor applied to dynamic object

Uncertainty analysis and optimization design of long-distance laser triangulation displacement sensor applied to dynamic object

Nonconventional Machining and Materials Processing: Proposed Design for Abrasive Jet Machining (AJM)

Graphene-Based Infrared Position-Sensitive Detector for Precise Measurements and High-Speed Trajectory Tracking

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