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This article describes a new method for estimating the tip displacement of piezoelectric benders. Two resistive strain gauges are fabricated within the top and bottom electrodes using an acid etching process. These strain gauges are employed in a half bridge electrical configuration to measure the surface resistance change, and estimate the tip displacement. Experimental validation shows a 1.1 % maximum...
The miniaturization of resonators for timing applications brings with it new challenges in terms of device optimization. As the device size is reduced, design intolerances lead to more significant differences between modeled and fabricated devices leading to poor performance. In this paper we present a methodology for improving resonator designs. A 32MHz AT-cut quartz thick VHF shear mode resonator...
Continuous arc discharge system is characterised to be implemented into the applications of fused fiber components as an alternative heat sources such as the chemical flame, filament fusion and laser. The heat source generated by the continuous arc discharge system which is a result of electron flows across two points which heats up the surrounding air in the gap. Heat is transferred to the fiber...
This paper presents a 12-electrode piezoelectric tube scanner for fast atomic force microscopy (AFM). The scanner is used simultaneously as a sensor and an actuator. The built-in sensing mechanism of the scanner allows for displacement measurement and the unique arrangement of the electrodes allows the tube to be driven in an anti-symmetrical manner, resulting in a collocated system suitable for positive-position...
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