A new level of freedom is made possible by orbital angular momentum (OAM), which can be used to create twisted ultrasonic motors for particle manipulation and control. For steady free‐flowing management, it essential produce acoustic OAM beams high order quality. However, this task difficult due the phased array's fundamental restriction insufficient resolution or aperture. Herein, a generic ap...

The consistency of the two-phase mode responses is essential to ensure mechanical performance and stability traveling-wave ultrasonic motors. Due asymmetry stator, inevitable manufacturing errors, or imbalance excitation voltages, amplitudes standing waves cannot be exactly same, resulting in unstable operating USM. To improve motor decrease velocity fluctuation, a closed-loop control scheme co...

This paper introduces a new algorithm for accurately reconstructing two smooth orthogonal surfaces by processing ultrasonic data. The proposed technique is based on a preliminary analysis of a waveform energy indicator in order to classify the data as belonging to one of the two flat surfaces. The following minimization of a nonlinear cost function, inspired by the mathematical definition of Gi...

In this paper we present the design of a car test bed. The main characteristic of our test bed is the steering which is Non-Holonomic to resemble the normal car steering. This test bed is a rear wheel drive with frontal steering by servo motor. The control brain consists of RoBoard II and Arduino Micro controller. We used multiple sensors (Ultrasonic range finder, 6 DOF Accelerometer, Wheel enc...

This Paper proposed a new navigation method for indoor mobile robots. The robot system is composed of a Radio Frequency Identification (RFID) tag sensor and Ultrasonic sensors. The RFID tags are used as landmarks for global path planning and the topological relation map which shows the connection of scattered tags through the environment is used as course instructions to a goal. The robot autom...

It is important to interpret resonance in the design reduce vibration of mechanical structures, and verify this phenomenon by experiments theoretical approach. When a continuous system observed using system, experience skill observer affect measurement accuracy natural frequency modes. Therefore, study, developed stably quantitatively beams microcontroller an ultrasonic sensor. The consists mic...

The purpose of this study is the definition and conception of a measurement system capable of continuously determining the level of carbon type bulk products, stored in a large-sized tank (mine shaft). This storage system has several supply circuits and a tapping circuit using motorized conveyor belts. The measurement system, associated with a data processing procedure, makes it possible to est...