Abstract

The main advantage of ferroelectric ceramics of the barium titanate type for piezoelectric applications lies in their high dielectric constant, compared with the well-known single-crystalline piezoelectric materials such as quartz. Ferroelectric ceramics are used in accelerometers developed for the measurement of acceleration in vibration testing and in vibration strain gauges developed for the determination of the resonant frequencies of mechanical structures. The applications, construction and properties of these two devices are described.

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