A Smart Icing Detection System for Any Location on the Outer Aircraft Surface

Schlegl, Thomas; Möser, Michael; Loss, Theresa; Unger, Thomas A.

doi:10.4271/2019-01-1931

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Among the direct ice accretion detection techniques, impedance and capacitance, vibration, fiber optic, and ultrasonic sensors are most widely adopted. For example, Schlegl et al [14] used impedance sensors for ice detection based on differences in electrical properties between air, water, and ice. Zheng et al [15] demonstrated that capacitance measurement can well reflect ice growth, while impedance spectra can differentiate between ice types.…”

Section: Introductionmentioning

confidence: 99%

Early-Stage Ice Detection Utilizing High-Order Ultrasonic Guided Waves

Rekuvienė,

Samaitis,

Jankauskas

et al. 2024

Sensors

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Ice detection poses significant challenges in sectors such as renewable energy and aviation due to its adverse effects on aircraft performance and wind energy production. Ice buildup alters the surface characteristics of aircraft wings or wind turbine blades, inducing airflow separation and diminishing the aerodynamic properties of these structures. While various approaches have been proposed to address icing effects, including chemical solutions, pneumatic systems, and heating systems, these solutions are often costly and limited in scope. To enhance the cost-effectiveness of ice protection systems, reliable information about current icing conditions, particularly in the early stages, is crucial. Ultrasonic guided waves offer a promising solution for ice detection, enabling integration into critical structures and providing coverage over larger areas. However, existing techniques primarily focus on detecting thick ice layers, leaving a gap in early-stage detection. This paper proposes an approach based on high-order symmetric modes to detect thin ice formation with thicknesses up to a few hundred microns. The method involves measuring the group velocity of the S1 mode at different temperatures and correlating velocity changes with ice layer formation. Experimental verification of the proposed approach was conducted using a novel group velocity dispersion curve reconstruction method, allowing for the tracking of propagating modes in the structure. Copper samples without and with special superhydrophobic multiscale coatings designed to prevent ice formation were employed for the experiments. The results demonstrated successful detection of ice formation and enabled differentiation between the coated and uncoated cases. Therefore, the proposed approach can be effectively used for early-stage monitoring of ice growth and evaluating the performance of anti-icing coatings, offering promising advancements in ice detection and prevention for critical applications.

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Section: Introductionmentioning

confidence: 99%

Early-Stage Ice Detection Utilizing High-Order Ultrasonic Guided Waves

Rekuvienė,

Samaitis,

Jankauskas

et al. 2024

Sensors

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UAV Icing: A Survey of Recent Developments in Ice Detection Methods

Løw-Hansen,

Hann,

Stovner

et al. 2023

IFAC-PapersOnLine

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Status and Trends in Small Aviation Development using Examples from Russia and the USA

et al. 2022

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The article examines and describes in detail the sphere of small aircraft. It differs from other types of aviation in that it includes relatively small aircraft: planes with a takeoff weight of up to 8600 kg of power, with a capacity of up to 19 passengers; helicopters with a takeoff weight of up to 4500 kg of power; drones with a takeoff weight of up to 8600 kg. During Soviet times, the sector was rapidly developing, and vessels were used for passenger transportation, medical purposes, forest protection, aerial patrolling of certain areas, reconnaissance, mail transportation, firefighting, and other purposes. The study summarizes the indicators characterizing the state of small aircraft in Russia and the United States, and a comparative analysis of the dynamics of small aircraft development of these two countries is made. The numerical indicators characterizing the number of small aircraft, pilots and airfields are considered. It is proved that the sphere of small aviation in Russia is in decline at the moment; concrete examples such as low level of pilots training, insufficient number of aircraft, runways, and others are considered. Possible prospects for the development of this sphere are identified and ways of solving the existing problems are proposed.

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A Smart Icing Detection System for Any Location on the Outer Aircraft Surface

Cited by 5 publications

References 8 publications

Early-Stage Ice Detection Utilizing High-Order Ultrasonic Guided Waves

Early-Stage Ice Detection Utilizing High-Order Ultrasonic Guided Waves

UAV Icing: A Survey of Recent Developments in Ice Detection Methods

Status and Trends in Small Aviation Development using Examples from Russia and the USA

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