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This paper reports research into the use of a crossed-electrode two-dimensional thick film lead zirconate titanate ultrasonic transducer array for particle manipulation under the control of electronics based on field programmable gate arrays. The array consists of 30 × 30 transducer elements defined by electrode crosspoints and works at approximately 7.25 MHz. Laser vibrometry of the array surface...
For radio-frequency (RF) circuits, energy harvesting is one of the research topics in recent years. By converting ambient energy into the required electrical energy, the circuit can still perform its functionality without any extra power source. In RF energy harvesting circuits, the most important part is the rectifier circuit. Therefore, this paper proposes an automated design tool for CMOS multi-stage...
This paper reports the fabrication and evaluation of a two-dimensional thick film PZT ultrasonic transducer array operating at about 7.5 MHz for particle manipulation. All layers on the array are screen-printed and sintered on an Al2O3 substrate without further processes or patterning. The measured dielectric constant of the PZT is 2250 ± 100, and the dielectric loss is 0.09 ± 0.005 at 10 kHz. Finite...
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