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Improving the linearity of piezoelectric ceramic actuators

Improving the linearity of piezoelectric ceramic actuators

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© The Institution of Electrical Engineers
Published

It is shown that the linearity of a piezoelectric ceramic actuator may be greatly improved if the applied electric charge, rather than the applied voltage, is varied to control the extension. Hysteresis is virtually eliminated.

Inspec keywords: electric actuators; piezoelectric devices; ceramics

Other keywords: extension control; piezoelectric ceramic actuators; charge drive; linearity

Subjects: Electric actuators and final control equipment; Piezoelectric and ferroelectric devices

References

    1. 1)
      • D. Berlincourt . Current developments in piezoelectric applications of perroelectrics. Ferroelectrics , 111 - 119
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