Biblio
Filters: Keyword is Frequency Stabilization [Clear All Filters]
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2020. Investigating Long-Term Stability of Wide Bandwidth Surface Acoustic Waves Gyroscopes Using a Monolithically Integrated Micro-Oven. 2020 IEEE 33rd International Conference on Micro Electro Mechanical Systems (MEMS). :252–254.
This paper is the first to investigate the long-term stability of Surface Acoustic Wave Gyroscopes (SAWG) using an ovenized control system. Monolithic integration of a MEMS heater adjacent to SAW devices on Lithium Niobate over insulator substrate (LNOI) tightly couples frequency-based temperature detection with heating for temperature and frequency stabilization. This first prototype demonstrates the ability to minimize the temperature variations of the SAWG to below ±10 μK and stabilize the SAWG resonance frequency to ±0.2 ppm. This approach thus eliminates the thermal drift in a SAWG and enables the development of a new generation of MEMS-based gyroscopes with long-term stability.
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2014. Storage devices for automated frequency regulation and stabilization. PES General Meeting | Conference Exposition, 2014 IEEE. :1-5.
In this paper we propose a framework for automating feedback control to balance hard-to-predict wind power variations. The power imbalance is a result of non-zero mean error around the wind power forecast. Our proposed framework is aimed at achieving the objective of frequency stabilization and regulation through one control action. A case-study for a real-world system on Flores island in Portugal is provided. Using a battery-based storage on the island, we illustrate the proposed control framework.