A highly-linear, integration-compatible output metric for amplitude-modulated resonant sensors based on weakly-coupled resonators

In this paper, we propose an alternative output metric for amplitude-modulated resonant sensors based on weakly-coupled resonators. The analog-to-digital conversion of this output metric is less demanding than that of the amplitude ratio, because of its boundedness and of its better linearity. In pa...

Full description

Saved in:
Bibliographic Details
Main Authors: Juillard, Jerome, Mostafa, Ali, Ferreira, Pietro Maris, Gouspy, Manon, Kraft, Michael
Format: Conference Proceeding
Language:English
Subjects:
Frequency modulation
injection-locked oscillators
Measurement
MEMS
Micromechanical devices
Oscillators
Resonant frequency
resonant sensors
Resonators
Sensors
weakly-coupled resonators
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this paper, we propose an alternative output metric for amplitude-modulated resonant sensors based on weakly-coupled resonators. The analog-to-digital conversion of this output metric is less demanding than that of the amplitude ratio, because of its boundedness and of its better linearity. In particular, we show that this output metric provides a perfectly linear measurement of the quantity of interest when a specific resonant sensor architecture based on mutually-injection locked oscillators (MILOs) is used. These results are supported by analytical calculations and by experimental data.
ISSN:2168-9229
DOI:10.1109/SENSORS47125.2020.9278642