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• A home-made measured simple system for output performances of linear piezoelectric motors were constructed. • A prototype of SWUMs is manufactured and the mechanical characteristics were tested. • A basic measurement approach for service performances of linear ultrasonic motors was presented. • Static and dynamic performances of linear motor can be measured simultaneously in real time. A prototype of the linear standing-wave ultrasonic motors having arc tip is designed and manufactured, and the output performances and mechanical characteristics were tested and evaluated using a home-made measured simple system in this study. Results show that the flexible design of the driving foot is interesting for the performance improvement and simplification design of standing-wave ultrasonic motors. The measured system is simple and is available to evaluate the output performances (thrust and speed) and mechanical characteristics curves of linear motors. The influence trend of preload and driving voltage on output speed is opposite, while the influence trend of thrust is parabola. The peak value of applied voltage is critical for the mechanical characteristic curve of piezoelectric motor. This study also supports a basic measurement approach for service performances of linear ultrasonic motors and the tribological behaviors of motor and/or actuator devices using piezoelectric vibration. [ABSTRACT FROM AUTHOR]

• A measuring system for electromechanical multi-parameters of linear piezoelectric motors was constructed. • Signal conditioning and measurement circuits were designed for physical signals processing, A/D conversion, and transmission. • The principle and structures of the synchronous testing system were demonstrated based on the virtual instrument. • The calculation principle of the transient characteristic of multi-parameters of piezoelectric motors was proposed. Due to the time-dependent correlations, the measurement and characterization of electronic and mechanical parameters are critical for linear piezoelectric ultrasonic motors (USMs) during the running process. This study constructed a homemade system to measure the electromechanical multi-parameters and kinetics performances agilely, transiently, and synchronously. The principles and structures of the test system were demonstrated based on virtual instrument technology. A signal conditioning circuit is designed and used for physical signal processing, A/D conversion, and transmission. The difference in resonant frequencies was discovered for the synchronization acquisition of mechatronic parameters, and the instantaneous characteristics of electromechanical parameters for SWUM (e.g., driving voltage, input current, thrust force, and speed during the start-up and power-off process) were established based on the experimental data. This study is significant for the measurement/evaluation of the dynamic and transient performances of linear piezoelectric motors and actuators. [ABSTRACT FROM AUTHOR]