Adaptation of a piano tuning device for the visually impaired

Davis, Rebecca; Sun, Yu; Sanderson, Paul

doi:10.1109/nebc.2005.1431937

Cited by 1 publication

(2 citation statements)

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“…However, it is well-known that tuning a piano is complicated because there are over two hundred strings to be tuned and professional temperament knowledge is required [2]. Concerning this issue, piano tuning has been studied for over three hundred years, since the birth of the piano, with a variety of tuning techniques developed, which can be divided into three main categories: manual tuning, semi-automated tuning and automated tuning [3][4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Zhou

2021

Energies

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This paper presents an intelligent permanent magnet synchronous motor-based servo drive system used in automated piano tuning applications. The permanent magnet synchronous motor-based drives are able to improve the accuracy of the piano tuning process in comparison with the traditional direct-current motor-based and step motor-based servo drives. To explain the techniques, firstly, the structure and principles of the automated piano tuning devices with a surface-mounted permanent magnet synchronous motor-based drive system integrated are introduced, illustrating that it is feasible to implement the proposed piano tuning strategy. Secondly, the piano tuning devices have two functions: low-speed rotation and position holding. To ensure that the surface-mounted permanent magnet synchronous motor can rotate stably over the low-speed range with strong anti-interference capacity, a double closed-loop speed-regulation-based control scheme is employed. And to ensure high position control performance, a fuzzy-adaptive triple closed-loop position-regulation-based control scheme is employed. It terms of the control schemes, it deserves to be mentioned that main contributions include, firstly, the parameters of the proportional integral controllers in the double closed-loop speed-regulation structure is tuned relying on both stability and bandwidth analyses. Then, a fuzzy-adaptive proportional integral controller is specially-designed for the triple closed-loop position-regulation to adapt to the piano tuning applications. Simulation is conducted on a 20 rpm three-phase permanent magnet synchronous motor servo drive-based piano tuning system to validate the proposed piano tuning method and to verify the proposed control techniques.

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Section: Introductionmentioning

confidence: 99%

“…As for manual tuning, professional tuners who have good musical ears, knowledge about musical theories and mechanical capabilities are qualified for this job [3]. By controlling the tension of the strings with a tuning hammer, the pitch of each string is adjusted to the desired levels.…”

Section: Introductionmentioning

confidence: 99%

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Zhou

2021

Energies

View full text Add to dashboard Cite

show abstract

Adaptation of a piano tuning device for the visually impaired

Cited by 1 publication

References 1 publication

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

Intelligent Permanent Magnet Motor-Based Servo Drive System Used for Automated Tuning of Piano

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