Metrological Analysis of a Contactless Inductive Position Measurement System

Research output: Chapter in Book/Report/Conference proceedingConference paperpeer-review


Inductive sensing offers a versatile approach for the realization of position sensors. Advantages of inductive sensing are its robustness with respect to environmental influences, such as dust, humidity, or pollution. The technique also allows the realization of contactless sensors, i.e. sensors without any connection elements. A flexible approach for contactless position sensing is based on voltage measurements between a transmitter coil and an array of receiver coils. E.g. the approach has also been presented for 3D tracking. In this work we study the characteristics of such a system for linear position measurement. The work is based on simulations and comparative measurements. Aspects for the modeling of the inductive coupling are addressed and verified by measurements. Based on this, the elements and exemplary results for an uncertainty quantification for different coil arrangements are presented. Finally a model based approach to assess different coil arrays by means of the Cramér-Rao lower bound (CRLB) is presented.

Original languageEnglish
Title of host publication2022 IEEE Sensors Applications Symposium, SAS 2022 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers
ISBN (Electronic)9781665409810
Publication statusPublished - 2022
Event17th IEEE Sensors Applications Symposium: SAS 2022 - Hybrider Event, Sundsvall, Sweden
Duration: 1 Aug 20223 Aug 2022


Conference17th IEEE Sensors Applications Symposium
Abbreviated titleSAS 2022
CityHybrider Event, Sundsvall


  • inductive sensing
  • position sensor
  • uncertainty analysis

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Electrical and Electronic Engineering
  • Instrumentation


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