Low-cost compact MEMS scanning ladar system for robotic applications

Moss, Robert; Yuan, Ping; Bai, Xiaogang; Quesada, Emilio Setién; Sudharsanan, R.; Stann, Barry L.; Dammann, J. Francis; Giza, Mark M.; Lawler, William B.

doi:10.1117/12.919804

Cited by 45 publications

(24 citation statements)

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“…However, a resonant mirror's maximum beam diameter is only increased at the expense of decreasing the maximum scan rate [9]. An optical amplification of the steering angle by an inverse telescope design has been reported; however, it requires a reduced beam diameter to conserve the Lagrange invariant which would limit the effective delivery of light over large distances due to beam spreading by diffraction [11,12].…”

Section: State Of the Art Beam Steeringmentioning

confidence: 99%

Single Chip LIDAR with Discrete Beam Steering by Digital Micromirror Device

Smith

Hellman

Gin

et al. 2017

Frontiers in Optics 2017

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Section: State Of the Art Beam Steeringmentioning

confidence: 99%

Single Chip LIDAR with Discrete Beam Steering by Digital Micromirror Device

Smith

Hellman

Gin

et al. 2017

Frontiers in Optics 2017

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“…The noise reduction effect of 9 dB by using the SSDs is clearly shown in the figure. The enhancement, compared with the past reported similar sensor, 11 exists also in the TIAs. The trans-impedance gain is 2.1 kΩ and much larger than 50 Ω, which is denoted in this past reported sensor.…”

Section: Key Componentsmentioning

confidence: 61%

“…Although the concept of this sensor is similar to the past reported one, 11 this sensor has some features especially for long-range imaging in addition to high frame rate and simple sensor configuration. First, the receiver adopts the APD, of which the receiving sensitivity is about 10 times as high as the PD that was used by Moss et al 11 because of the avalanche gain.…”

Section: Sensor Conceptmentioning

confidence: 87%

“…First, the receiver adopts the APD, of which the receiving sensitivity is about 10 times as high as the PD that was used by Moss et al 11 because of the avalanche gain. Additionally, the array configuration of the APD improves the responsiveness for the short pulse.…”

Section: Sensor Conceptmentioning

confidence: 99%

“…Moss et al 11 proposed the type of "transmitted beam scanning and scanless single receiving." In this type, the receiver combines the photodetector (PD) array and one adder circuit.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Range imaging pulsed laser sensor with two-dimensional scanning of transmitted beam and scanless receiver using high-aspect avalanche photodiode array for eye-safe wavelength

et al. 2016

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"Range imaging pulsed laser sensor with two-dimensional scanning of transmitted beam and scanless receiver using high-aspect avalanche photodiode array for eye-safe wavelength," Opt. Eng. Abstract. We demonstrate a range imaging pulsed laser sensor with two-dimensional scanning of a transmitted beam and a scanless receiver using a high-aspect avalanche photodiode (APD) array for the eye-safe wavelength. The system achieves a high frame rate and long-range imaging with a relatively simple sensor configuration. We developed a high-aspect APD array for the wavelength of 1.5 μm, a receiver integrated circuit, and a range and intensity detector. By combining these devices, we realized 160 × 120 pixels range imaging with a frame rate of 8 Hz at a distance of about 50 m. © The Authors. Published by SPIE under a Creative Commons Attribution 3.0 UnportedLicense. Distribution or reproduction of this work in whole or in part requires full attribution of the original publication, including its DOI.

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Color and depth data fusion using an RGB-D sensor for inexpensive and contactless dynamic displacement-field measurement

Chen

Abdelbarr

Jahanshahi

et al. 2017

Struct Control Health Monit

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Summary There are numerous applications in the field of structural dynamics that require the accurate measurement of evolving deformation fields. Although there are several sensors for direct displacement measurements at a specific point in a uniaxial direction or multicomponent deformations, there are only very limited, and relatively quite expensive, methodologies for obtaining the 3‐dimensional components of a displacement of a dynamically evolving (i.e., not pseudostatically) deformation field. This paper reports the results of a comprehensive experimental study to assess the accuracy and performance of a class of inexpensive vision‐based sensors (i.e., RGB‐D sensors) to acquire dynamic measurements of the displacement field of a test structure. The sensor was subjected to a broad variety of different dynamic motions of varying amplitude and spectral characteristics and with varying configurations of the position and orientation of the sensor with respect to the target structure. Particular attention was devoted to quantifying the influence of various test conditions, such as amplitude, frequency, sampling rate, spatial distortion, and relationships between the RGB pixel‐based measurements and the depth measurements. It is shown that the class of sensors under discussion, when operated under the performance envelope discussed in this paper, can provide, with acceptable accuracy, a very convenient and simple means of quantifying 3‐dimensional displacement fields that are dynamically changing at relatively low‐frequency rates typically encountered in the structural dynamics field.

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Low-cost compact MEMS scanning ladar system for robotic applications

Cited by 45 publications

References 0 publications

Single Chip LIDAR with Discrete Beam Steering by Digital Micromirror Device

Single Chip LIDAR with Discrete Beam Steering by Digital Micromirror Device

Range imaging pulsed laser sensor with two-dimensional scanning of transmitted beam and scanless receiver using high-aspect avalanche photodiode array for eye-safe wavelength

Color and depth data fusion using an RGB-D sensor for inexpensive and contactless dynamic displacement-field measurement

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