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Q-Value Control of Piezoelectric Vibrator Using Operational Amplifier Circuit
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In application of a piezoelectric vibrator to some electronic devices such as gyro-sensors and piezoelectric ceramic transducers, it is very useful if the value of the resonance quality factor (Q-value) can be controlled electrically. For achievement of such an ideal, application of a negative impedance converter circuit (NIC circuit) to a piezoelectric vibrator is considered in this work. We applied several negative circuit elements to a piezoelectric vibrator in order to control the Q-value and achieve high performance of it. That is, this work deals with Q-value control of a piezoelectric vibrator by series connection of the NIC circuit, consisting of an operational amplifier, to the vibrator.
Title: Q-Value Control of Piezoelectric Vibrator Using Operational Amplifier Circuit
Description:
In application of a piezoelectric vibrator to some electronic devices such as gyro-sensors and piezoelectric ceramic transducers, it is very useful if the value of the resonance quality factor (Q-value) can be controlled electrically.
For achievement of such an ideal, application of a negative impedance converter circuit (NIC circuit) to a piezoelectric vibrator is considered in this work.
We applied several negative circuit elements to a piezoelectric vibrator in order to control the Q-value and achieve high performance of it.
That is, this work deals with Q-value control of a piezoelectric vibrator by series connection of the NIC circuit, consisting of an operational amplifier, to the vibrator.
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