Microcontroller-based full control of ultrasonic motor with frequency and voltage adjusting

Bekiroğlu, Erdal

doi:10.1016/j.sna.2007.07.018

Cited by 13 publications

(2 citation statements)

References 26 publications

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“…ADC need an external hardware to read it. Delay can be done using one shot multivibrator (Tuwanut, Koseeyaporn, & Wardkein, 2007) or timer from microcontroller (Bekiroglu, 2008) (Adeel, Alimgeer, Inam, & Hameed, 2013). Therefore, in our propos ed system, delay by microcontroller's timer is used because it can be simply adjust by software editing.…”

Section: Literature Reviewmentioning

confidence: 99%

Zero Crossing Detector and Timer Based Supply Voltage at Peak Breaker

Bangsawan¹,

Hanafi²,

Suryana³

2020

j. standard.

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<p><em>In this study, a supply voltage at peak breaker is made to do the plug discharge test. Plug discharge (capacitor residual voltage) testing on IEC 60335-1 is a challenge for engineers. Requirement for the test are disconnecting supply voltage from the Equipment Under Testing (EUT) at its peak value. Most laboratory did this test manually, so the test might be carried out repeatedly so that the requirement is obtained. This system is using zero crossing detector and timer for detect the peak waave. The zero crossing detector circuit find the time when the voltage cross the 0 volt as the initial reference for termination. Microcontroller with Timer feature is used to delay the disconnection time from the 0 volt point or a quarter period of the power line. Relays are used as voltage breakers. From the experiments, it is necessary to add a compensation time due to the relay response time so that the system could do the supply voltage break at it’s peak wave. This system works properly with error 1.6% and with this means plug discharge testing could be finished in only one trial.</em></p>

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Section: Literature Reviewmentioning

confidence: 99%

Zero Crossing Detector and Timer Based Supply Voltage at Peak Breaker

Bangsawan¹,

Hanafi²,

Suryana³

2020

j. standard.

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“…Hence, variation of the driving signal frequency near the resonance frequency of the stator can be adopted to adjust the speed. However, non-resonant vibration lowers the performance of the USM and resulting in very narrow controllable frequency range [24,16]. Secondly, the contact points on the surface of stator will move from perfect elliptical motion (phase shift π/2) to rectilinear reciprocating motion (phase shift 0), so variation of the driving signals phase shift can also be adopted to adjust the speed.…”

Section: Introductionmentioning

confidence: 99%

A novel ring type ultrasonic motor with multiple wavenumbers: design, fabrication and characterization

Duan

Quek

Wang

2009

Smart Mater. Struct.

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A novel ring type traveling wave ultrasonic motor (USM) with multiple wavenumbers has been designed, fabricated and characterized. This multiple wavenumber operation is realized by means of a new electrode configuration of the piezoelectric element. The experimental and numerical performance results for the multiple wavenumbers show that USM with multiple wavenumbers significantly outperform the single wavenumber motor as regards the range of speed and torque output. This novel implementation of the traveling wave motor also offers extra control for stable operation of USM. The performances of the control variables, the wavenumber and the amplitude, are compared to show their advantages and disadvantages. The speed control range for the wavenumber is larger than that for amplitude control; wavenumber control has better stability at low speed while amplitude control can work continuously with less wear. Hybrid control using both methods may result in better performance of USM.

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