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Wind tunnel and flight testing of a lamb wave based ice accretion sensor

Pohl, Martin (2023) Wind tunnel and flight testing of a lamb wave based ice accretion sensor. Deutscher Luft- und Raumfahrtkongress (DGLR), 2023-09-19 - 2023-09-21, Stuttgart.

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Severe icing conditions is still a risk in avtiation since heavy icing on aircraft can affect mass and aerodynamic performance in a way, that a catastrophic loss of control may occur. Detecting icing conditions and the extent of ice accretion is therefore essential to react instantly and to assess the severity. This eases the decision to either activate ice protection systems and continue the flight or to leave the icing conditions immediately. These functions can be provided by an icing sensor. Within the SENS4ICE project, such an icing sensor is developd which is able to detect ice accretion on aircraft surfaces which are prone to ice accretion. This so-called Local Ice Layer Detector (LILD) uses Lamb waves which are guided by the aircraft structure. If an ice accretion happens, the wave guide behavior is affected which can be measured. Within the project, the sensor hard- and software have been developed and wind tunnel as well as flight tests have been undertaken. In this paper, an overview about the function of the sensor as well as the general signal behavior are given. Finally the results of the wind tunnel test and some preliminary results from the flight tests will be shown. In both tests, the sensor was able to detect even very thin ice layers with minimum delay from the beginning of the ice accretion.

Item URL in elib:https://elib.dlr.de/197683/
Document Type:Conference or Workshop Item (Speech)
Title:Wind tunnel and flight testing of a lamb wave based ice accretion sensor
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Pohl, MartinUNSPECIFIEDhttps://orcid.org/0000-0002-1825-8419UNSPECIFIED
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:ice sensor, aircraft icing, lamb wave, SENS4ICE
Event Title:Deutscher Luft- und Raumfahrtkongress (DGLR)
Event Location:Stuttgart
Event Type:international Conference
Event Start Date:19 September 2023
Event End Date:21 September 2023
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Aircraft Systems
Location: Braunschweig
Institutes and Institutions:Institut für Systemleichtbau > Adaptronics
Deposited By: Pohl, Martin
Deposited On:09 Oct 2023 08:10
Last Modified:24 Apr 2024 20:58

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