TY - JOUR
T1 - A variable-resistance digital charge estimator for piezoelectric actuators
T2 - An alternative to maximise accuracy and curb voltage drop
AU - Mohammadzaheri, Morteza
AU - Emadi, Mohammadreza
AU - Ghodsi, Mojtaba
AU - Jamshidi, Ehsan
AU - Bahadur, Issam
AU - Saleem, Ashraf
AU - Zarog, Musaab
N1 - Funding Information:
The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: Research reported in this article was supported by Sultan Qaboos University grant IG/ENG/MIED/18/02’’IG/ ENG/MIED/18/02.
Publisher Copyright:
© The Author(s) 2019.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - This article (1) proposes the use of a varying sensing resistor for digital charge estimators of piezoelectric actuators, (2) shows the usefulness of this proposal and (3) derives formulae to estimate the proposed varying sensing resistor. Digital charge estimators are used for charge-based precise position control of piezoelectric actuators. In existing digital charge estimators, an uncalculated resistor is used for a wide range of operating areas. Improper choice of the sensing resistor causes excessive drop in accuracy of charge estimation and/or in the driver voltage across the actuator. These issues are shown to nearly vanish with the use of proposed varying resistors.
AB - This article (1) proposes the use of a varying sensing resistor for digital charge estimators of piezoelectric actuators, (2) shows the usefulness of this proposal and (3) derives formulae to estimate the proposed varying sensing resistor. Digital charge estimators are used for charge-based precise position control of piezoelectric actuators. In existing digital charge estimators, an uncalculated resistor is used for a wide range of operating areas. Improper choice of the sensing resistor causes excessive drop in accuracy of charge estimation and/or in the driver voltage across the actuator. These issues are shown to nearly vanish with the use of proposed varying resistors.
KW - Piezoelectric actuator
KW - charge
KW - digital
KW - voltage drop
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U2 - 10.1177/1045389X19844011
DO - 10.1177/1045389X19844011
M3 - Article
AN - SCOPUS:85064915104
SN - 1045-389X
VL - 30
SP - 1699
EP - 1705
JO - Journal of Intelligent Material Systems and Structures
JF - Journal of Intelligent Material Systems and Structures
IS - 11
ER -