NDLI: A speed regulating scheme for air-turbine dental handpieces

Content Provider	IEEE Xplore Digital Library
Author	Zakeri, V. Arzanpour, S.
Copyright Year	2012
Description	Author affiliation: Mechatron. Syst. Eng., Simon Fraser Univ., Surrey, BC, Canada (Zakeri, V.; Arzanpour, S.)
Abstract	Air-turbine dental handpieces (ATDH) are used in most of dental practices as the main cutting tool. However, the speed of these handpieces is reduced while cutting a tooth; because no speed controller has been provided for them. This speed-reduction decreases the cutting efficiency of air-turbine handpieces. A review of literature indicated no study concerned with designing a speed controller for ATDH. Thus, in this paper, a control scheme is proposed for regulating the speed including `measurement', `actuation', and `controller-design' stages. An accelerometer was employed to capture vibrations of the handpiece; and the frequency associated with the first peak in the spectrum was indicated to represent the speed. An on/off solenoid valve with pulse-width modulation (PWM) technique was employed to regulate the speed through controlling the input pressure to the handpiece. Changing the duty-cycle of the PWM pulses could vary the speed. A process model from the applied duty-cycle to the measured speed was obtained. This process model includes a linear dynamic and a nonlinear static part. Then, a proportional-integral- (PI) controller was selected, and the gains were tuned. The practicality and efficiency of the proposed control scheme with the PI controller was confirmed by experimental results.
Sponsorship	IEEE Control Syst. Soc.
Starting Page	2356
Ending Page	2361
File Size	195877
Page Count	6
File Format	PDF
ISBN	9781457710957
ISSN	07431619
e-ISBN	9781457710964
e-ISBN	9781467321020
DOI	10.1109/ACC.2012.6315387
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2012-06-27
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	American Automatic Control Council(AACC)
Subject Keyword	Valves Solenoids Pulse width modulation Vibrations Dentistry Accelerometers Atmospheric modeling
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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