Laser scanning applied for ice shape measurements

Gong, Xiaoliang; Bansmer, Stephan

doi:10.1016/j.coldregions.2015.03.010

Cited by 20 publications

(9 citation statements)

References 13 publications

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“…Among lidar-based methods, 2D lidar also can be used to measure or model the object through cooperating with a movable mechanical device or a specific installation method. Gong et al [ 17 ] proposed a 3D ice shape measurement technique through laser light sheet scanning. Yan et al [ 18 ] detected 3D objects with a 2D laser scanning sensor and proposed specially designed algorithm to collect data and construction three-dimensional images.…”

Section: Related Workmentioning

confidence: 99%

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Measuring Vehicle Profile Size: Lidar-Based System and K-Frame-Based Methodology

Zhang

Wang

Shao

et al. 2021

Sensors

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At present, light curtain is a widely-used method to measure the vehicle profile size. However, it is sensitive to temperature, humidity, dust and other weather factors. In this paper, a lidar-based system with a K-frame-based algorithm is proposed for measuring vehicle profile size. The system is composed of left lidar, right lidar, front lidar, control box and industry controlling computer. Within the system, a K-frame-based methodology is investigated, which include several probable algorithm combinations. Three groups of experiments are conducted. An optimal algorithm combination, A16, is determined through the first group experiments. In the second group experiments, various types of vehicles are chosen to verify the generality and repeatability of the proposed system and methodology. The third group experiments are implemented to compare with vision-based methods and other lidar-based methods. The experimental results show that the proposed K-frame-based methodology is far more accurate than the comparative methods.

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Section: Related Workmentioning

confidence: 99%

“…In consideration of calibration error, the actual measured value is shown in Equation (16). Then, the relative measurement error of vehicle width caused by calibration error is according to Equation (17).…”

Section: Calibration Errormentioning

confidence: 99%

Measuring Vehicle Profile Size: Lidar-Based System and K-Frame-Based Methodology

Zhang

Wang

Shao

et al. 2021

Sensors

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“…A similar approach has been used to characterize not only ice but also water film thickness on an airfoil during ice accretion (Liu et al ., 2020a). Optical (Gong and Bansmer, 2015b; Broeren et al ., 2018) and mid‐IR laser scanning methods (Gong and Bansmer, 2015a) have been developed to improve the accuracy of the measurements. A comparison of different scanning methods is provided by (Neubauer et al ., 2019).…”

Section: Introductionmentioning

confidence: 99%

Detailed atmospheric ice accretion surface measurement using micro‐computed tomography

Velandia

Bansmer

2020

Atmospheric Science Letters

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Surfaces exposed to atmospheric cold temperature and humid environments are prone to ice accretion. Airplanes, electrical power transmission cables, and wind turbines are typical examples for which icing has to be considered. The measurement of the resulting ice shapes is a challenging process. While macroscopic characteristics of the ice geometry can be observed using photography and optical scanning techniques, microscopic measurements are difficult to conduct because grooved surface partially occludes the geometry of chasms. To overcome this optical inaccessibility, we propose a method to carry out detailed high-resolution measurements of the accretion surface with microcomputed tomography. This approach provides a unique visualization of the empty spaces in the feather region. The information obtained by this technique can improve the understanding of ice accretion physics and its computational modeling.

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“…Ice sensors have been developed based on different kinds of physical principles, e.g., infrared or laser imaging [5]- [7], fiber optics [8], [9], resonance frequency [10]- [12], ultrasound [13], [14], conductivity [15], [16], capacitance effects [17], [18] and electromagnetic waves [19], [20]. These sensors are applied to meet specific needs in different fields.…”

Section: Introductionmentioning

confidence: 99%

“…One is the polarized infrared or electromagnetic wave measurement method. Colace, Santoni and Assanto [7] measured diffused and reflected infrared light to classify four distinct road statuses: dry asphalt, wet asphalt and asphalt covered with water and ice respectively. This kind of non-contact detection method utilizes polarization technology and covers a relatively large area, distinguishing dry and icy asphalt with promising results.…”

Section: Introductionmentioning

confidence: 99%

The piezoelectric road status sensor using the frequency scanning method and machine-learning algorithms

Gui

Lin

et al. 2019

Sensors and Actuators A: Physical

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Research highlights  Amplitude frequency response was calculated through theoretical model and finite element analysis.  Nine features were assessed, four calculating methods, including SVR and ANN, were compared.  The measurement upper limit was extended from 1.4mm to 10mm with accuracy better than 1mm.  The reproducibility was experimentally investigated and a field test was conducted to proof the sensor.

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Laser scanning applied for ice shape measurements

Cited by 20 publications

References 13 publications

Measuring Vehicle Profile Size: Lidar-Based System and K-Frame-Based Methodology

Measuring Vehicle Profile Size: Lidar-Based System and K-Frame-Based Methodology

Detailed atmospheric ice accretion surface measurement using micro‐computed tomography

The piezoelectric road status sensor using the frequency scanning method and machine-learning algorithms

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