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In this paper, a new type of micro droplet generation system is proposed. It is composed of the drive component (the linear ultrasonic motor and controller), the micro droplet generation component (the syringe and the catheter), signal generator and amplifier and the micro droplet separation (the Langevin vibrator and a cantilever beam). Utilizing the drive controller to drive the linear ultrasonic...
A 3-DOF micromanipulator driven by linear ultrasonic motors is proposed in this paper. Compared with the traditional micromanipulator based on static deformation of piezoelectric ceramics (high displacement resolution, micro-size motion range), this micromanipulator owns motion range in millimeter size (2 mm) while having high displacement resolution (50 nm). First of all, working principle of the...
This paper designed a hinged type beam clamping structure based on the characteristics of the Langevin-type transducer oscillator having obvious vibration node. The corresponding motor stator was developed based on the previous U-shape type linear ultrasonic motor. A simple mechanical model of the structure was established to analyze the effects of spring stiffness on the normal pressure and tangential...
The flexible hinge has been proved to be more suitable for the clamping design than the spring. But, it still lacks in-depth research on how the flexible hinge affects the motor's output. In this paper, the laser interferometer is used to measure the real-time displacement of the slide, from which the speed and acceleration curves can be compared to research on this question. Ultimately, the maximum...
Linear ultrasonic motors are known for their various advantages such as direct actuating, stepping and servo working, as well as excellent controllable performance. Hence, linear ultrasonic motors are becoming increasingly important in the studying field of ultrasonic motors around the world. As the output characteristics of ultrasonic motors are directly influenced by the friction characteristic...
A new-style linear ultrasonic motor is presented in this paper. It takes a brief structure with ceramics pasted on its surface, realizing the integrated design of the stator. The second-rank longitudinal vibration of the stator and the ceramics on the driving foot generate alternating force together. This driving style doesn't depend on the elliptical motion of the nodes on the driving foot. The theoretical...
As several linear ultrasonic motors worked together could increase the thrust, the research on linear ultrasonic motors parallel technology received attention. Preliminary study suggested that motor output performances were non-linear superposition relationship in parallel condition, but the research was not in-depth. In this paper, the linear ultrasonic motors output characteristics in parallel condition...
Linear ultrasonic motors are known for their various advantages such as direct actuating, stepping and servo working, as well as excellent controllable performance. Hence, linear ultrasonic motors are becoming increasingly important in the studying field of ultrasonic motors around the world. As the output characteristics of ultrasonic motors are directly influenced by the friction characteristic...
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