Low-Power Frequency-to-Digital-Converter for a 6-Axis MEMS Frequency-Modulated Inertial Measurement Unit

Marco Bestetti, Mauro Leoncini, Paolo Minotti, Cristiano Rocco Marra, Giacomo Langfelder, Alessandro Tocchio, Stefano Facchinetti

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The work presents and characterizes a frequency digitization circuit used in a multi-parameter, multi-axis inertial measurement unit wholly based on frequency modulated (FM) sensors. With a low quantization noise of 35μ HZ ms at 100-Hz output data rate, and a linear full-scale of 1 kHz, the proposed frequency to digital converter (FDC) achieves 149 dB of dynamic range, referred to a 50 Hz sensing bandwidth. The circuit operation is successfully demonstrated on both Lissajous FM gyroscopes and time-switched FM accelerometers, on both in-plane and out-of-plane sensing axes.

Original languageEnglish
Title of host publicationINERTIAL 2019 - 6th IEEE International Symposium on Inertial Sensors and Systems, Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538678275
DOIs
Publication statusPublished - Apr 2019
Externally publishedYes
Event6th IEEE International Symposium on Inertial Sensors and Systems, INERTIAL 2019 - Naples, United States
Duration: 1 Apr 20195 Apr 2019

Publication series

NameINERTIAL 2019 - 6th IEEE International Symposium on Inertial Sensors and Systems, Proceedings

Conference

Conference6th IEEE International Symposium on Inertial Sensors and Systems, INERTIAL 2019
CountryUnited States
CityNaples
Period1.4.195.4.19

Keywords

  • frequency modulation
  • inertial sensors
  • MEMS

ASJC Scopus subject areas

  • Control and Optimization
  • Instrumentation

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  • Cite this

    Bestetti, M., Leoncini, M., Minotti, P., Marra, C. R., Langfelder, G., Tocchio, A., & Facchinetti, S. (2019). Low-Power Frequency-to-Digital-Converter for a 6-Axis MEMS Frequency-Modulated Inertial Measurement Unit. In INERTIAL 2019 - 6th IEEE International Symposium on Inertial Sensors and Systems, Proceedings [8739760] (INERTIAL 2019 - 6th IEEE International Symposium on Inertial Sensors and Systems, Proceedings). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ISISS.2019.8739760