Title :
Development of Ultrasonic Equipment Using Microcontrollers
Author_Institution :
Sch. of Electron. & Electr. Eng., Shanghai Second Polytech. Univ., Shanghai, China
Abstract :
With adaptive band-pass filter to extract the work of the ultrasonic transducer fundamental base wave signal, to obtain the phase difference between current and voltage, then the fuzzy control method according to the phase displacement to achieve automatic frequency tracking (AFT), through the current control actuator output amplitude, so constant, accurate frequency tracking can be achieved to ensure that the quality ultrasound equipment and efficiency.
Keywords :
actuators; adaptive filters; band-pass filters; displacement control; electric current control; fuzzy control; microcontrollers; ultrasonic transducers; adaptive band-pass filter; automatic frequency tracking; current control actuator output amplitude; current phase difference; fuzzy control method; microcontrollers; phase displacement; ultrasonic equipment development; ultrasonic transducer fundamental base wave signal; voltage phase difference; Acoustics; Automatic frequency control; Band pass filters; Microcontrollers; Resonant frequency; Transducers; constant amplitude; constant amplitude ultrasonic; frequency tracking; ultrasonic;
Conference_Titel :
Computer Science & Service System (CSSS), 2012 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-0721-5
DOI :
10.1109/CSSS.2012.523
