- Title
- Charge drive with active DC stabilization for linearization of piezoelectric hysteresis
- Creator
- Fleming, Andrew J.
- Relation
- IEEE Transactions on Ultrasonics, Ferroelectrics and Frequncy Control Vol. 60, Issue 8, p. 1630-1637
- Publisher Link
- http://dx.doi.org/10.1109/TUFFC.2013.2745
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- journal article
- Date
- 2013
- Description
- Charge drive circuits can significantly reduce piezoelectric nonlinearity; however, they are rarely used in practice because of their limited low-frequency performance, their dependence of voltage gain on the load capacitance, and their requirement for time-consuming tuning procedures. In this report, a new charge drive circuit is proposed that uses a controlled current source with voltage feedback to stabilize the low-frequency behavior. This approach eliminates many of the present difficulties and allows extremely low transition frequencies without a long transient response. Experimental results demonstrate that the proposed charge amplifier can effectively reduce piezoelectric hysteresis and creep to less than 1.3% at scan-rates of 10, 1, and 0.1 Hz.
- Subject
- capacitance; creep; dielectric hysteresis; piezoelectric actuators; piezoelectricity
- Identifier
- http://hdl.handle.net/1959.13/1299485
- Identifier
- uon:19888
- Identifier
- ISSN:0885-3010
- Language
- eng
- Reviewed
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