Abstract
The development of glucose micro sensors for clinical use is driven by the aim of automatic blood glucose normalization in diabetic patients. An improved affinity viscometric sensor for continuous glucose monitoring (CGM) is presented by using a micro-electro-mechanical system (MEMS) with a differential capacitor. A numerical model using Reynolds equation is used to simulate the dynamic response under different viscosities, and the relationship between capacitance and viscosity is revealed. Compared to the previous version presented by Columbia University, the sensor designed in this paper has enhanced the capacitor by introducing a differential capacitance, which also avoided volume changes of the air and polymer solution chamber during the vibration, increasing the linear range of the sensor. In addition, the simulation results show that the sensor can be driven by a Gaussian Pulse resulting in a significant power saving, when compared to a sinusoidal excitation.
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Acknowledgements
This work is supported by Natural Science Foundation of China (U1134004, 50905033), Guangdong Innovative Research Team Program (201001G0104781202), The National Basic Research Program of China (2011CB013100-G, National key technology support program (2012BAF12B10), Specialized Research Fund for the Doctoral Program of Higher Education of China (20094420120001)
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Yang, Z., Wang, M., Bai, Y., Chen, X. (2014). A Differential Capacitive Viscometric Sensor for Continuous Glucose Monitoring. In: Wang, W. (eds) Mechatronics and Automatic Control Systems. Lecture Notes in Electrical Engineering, vol 237. Springer, Cham. https://doi.org/10.1007/978-3-319-01273-5_111
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DOI: https://doi.org/10.1007/978-3-319-01273-5_111
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