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  4. Printed capacitive sensors for contactless ice detection in automotive liquid conveyor pipes
 
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2017
Conference Paper
Title

Printed capacitive sensors for contactless ice detection in automotive liquid conveyor pipes

Abstract
This publication focuses on the development of an innovative, low-cost sensor for the detection of ice formation in conveyor pipes of vehicles. The measurement principle is based on the contactless determination of the relative permittivity of a medium by capacitive sensors. In comparison to water, ice has a decreased relaxation frequency through crystallization below the freezing point. Capacitive sensor structures for permittivity measurement were applied on a polymer pipe by functional printing, which can be installed in the conveying systems in the area of the feed lines. Due to its low-cost and universal design, the sensor can be used in all applications where the integrability and costs of an installed sensor system play a major role.
Author(s)
Happel, J.
Döring, J.
Krieger, K.-L.
Deitschun, J.
Godlinski, D.
Mainwork
AMA Conferences 2017. Proceedings  
Conference
International Conference on Sensors and Measurement Technology (SENSOR) 2017  
International Conference on Infrared Sensors & Systems (IRS2) 2017  
Language
English
Fraunhofer-Institut für Fertigungstechnik und Angewandte Materialforschung IFAM  
Keyword(s)
  • kapazitiver sensor

  • Bedrucken

  • Transportsystem

  • Gefrierpunkt

  • Speiseleitung

  • Polymer

  • Permittivität

  • Sensorsystem

  • Messprinzip

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