Piezoceramic Sensors

Abstract

This book is devoted to piezoceramic sensors, which are widely used in hydroacoustics, electroacoustics, medicine, measuring, test engineering and non-destructive control. The author and his co-workers' work results are described here for the first time.This book gives complete update information on various types of piezosensors. Each sensor transforms a physical value into an electric signal. Piezoelectric transducers and sensors, based on piezoelectric effects, are universal tools, applied for measuring various processes. They are used in research and in different industries to control the quality of production processes.There are individual requirements for parameters of transducers and sensors to be applied in each sphere. This book gives fundamental information on technical designs and practical application of transducers and sensors. Sensors with unique qualities can be designed, according to the new technologies described. New methods of measuring physical values and designing new sensors (including piezosensors) are discussed in this book.This book is intended for graduate students and specialists in hydroacoustics, non-destructive control, measuring technology, and development of automatic control sensors.

Modelling of Piezoelectric Transducers for Environmental Monitoring

“…The displacement of material particles of piezoceramic disk transducer with the highest output signal (Table 1, scheme 3) is shown in Figure 3. Maximum bending of proposed transducer with transformer decoupling is 250 microns, which is 4 times more than transducer with traditional connection (Sharapov 2011) has. Using such modelling it is easily to determine the characteristics sensitivity of the piezoelectric transducers to variations of their design parameters.…”

“…Exactly matched the inductance L to the interelectrode capacitance C we can greatly increase the output signal. As seen from Table 1, the use of transformer decoupling (scheme 2, 3) allows us to create bending vibrations in piezoelectric transducer which lead to an increase of output signal 108-112 dB in comparison with traditional connection 80 dB (Sharapov 2011) (scheme 1).…”

Analog Front-End Circuitry in Piezoelectric and Microphone Detection of Photoacoustic Signals

“…2a) and charge amplifier (Fig. 2b) [38,[51][52][53][54]. The basic preamplifier circuits for condenser and electret (pre-polarized) microphones are given in Figs.…”

Determination of Influence of Geometric Parameters of Piezoceramic Plate on Amplitude Characteristics of Linear Piezomotor

“…Piezoelectric motors are used in microscopy, robotics, photographic equipment, nanometrology, nanolithography, nanoprint, microdosing, etc. They can be used for vacuum and cryogenic equipment, as well as ultra-precise positioning of objects and systems, in particular, for radar systems [1][2][3].…”