A demodulation technique for the sensing circuit of a MEMS gyroscope

E. Nunzi, R. Antonello, P. Carbone, R. Oboe, E. Lasalandra, G. Spinola, L. Prandi, A. Rizzo

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

Abstract

This paper deals with the design of a digital sensing interface for a MEMS gyroscope. In such devices, the information regarding the angular rate Ω z (t) experienced by the sensor is contained in a suppressed carrier- dual side band (SC-DSB) signal, which has Ωz (t) as modulating component. Hence, a demodulation must be carried out in order to retrieve a measurement of the angular rate. The demodulation process presented in the paper consists of a quantization stage of the SC-DSB signal, which is performed with a three-level band-pass ΔΣ converter, followed by a digital demodulation of the ΔΣ bit-stream with a given digital sequence. Several simulation results are reported to evaluate system performances.

Original languageEnglish
Title of host publicationConference Record - IEEE Instrumentation and Measurement Technology Conference
Pages1736-1740
Number of pages5
DOIs
Publication statusPublished - 2006
EventIMTC'06 - IEEE Instrumentation and Measurement Technology Conference - Sorrento, Italy
Duration: Apr 24 2006Apr 27 2006

Other

OtherIMTC'06 - IEEE Instrumentation and Measurement Technology Conference
CountryItaly
CitySorrento
Period4/24/064/27/06

Keywords

  • Band-pass ΔΣ converters
  • Demodulation logic
  • MEMS gyroscope

ASJC Scopus subject areas

  • Instrumentation

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    Nunzi, E., Antonello, R., Carbone, P., Oboe, R., Lasalandra, E., Spinola, G., Prandi, L., & Rizzo, A. (2006). A demodulation technique for the sensing circuit of a MEMS gyroscope. In Conference Record - IEEE Instrumentation and Measurement Technology Conference (pp. 1736-1740). [1700484] https://doi.org/10.1109/IMTC.2006.235198