Abstract
In this paper, the amplitude and frequency stability of a mode-localized sensor are characterized in a closed loop setup. The system describes an absolute amplitude ratio sensitivity of 5250 to stiffness perturbations in linear operation. A stability of 432ppm at 500s integration time is observed for amplitude ratio measurements. A resolution of 85ppb corresponding to normalised stiffness perturbations in amplitude ratio measurements is thus demonstrated at 500s integration time. Comparisons to frequency shift sensing within the same device shows that amplitude ratio sensing provides higher accuracies for long term measurements due to intrinsic common mode rejection properties in a mode-localized system.
Original language | English |
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Title of host publication | 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings |
Publisher | IEEE |
Pages | 510-513 |
Number of pages | 4 |
ISBN (Electronic) | 9781538629161 |
DOIs | |
Publication status | Published - 27 Oct 2017 |
Event | 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Besancon, France Duration: 9 Jul 2017 → 13 Jul 2017 |
Publication series
Name | 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 - Proceedings |
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Conference
Conference | 2017 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium, EFTF/IFC 2017 |
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Country/Territory | France |
City | Besancon |
Period | 9/07/17 → 13/07/17 |
Bibliographical note
Funding Information:V. ACKNOWLEDGEMENT This work is supported by funding from Innovate UK and Natural Environment Research Council.
Publisher Copyright:
© 2017 IEEE.