PZT-based piezoelectric ceramics ultrasonic sensor

Publish Time: 2018-03-13     Origin: Site

PZT-based piezoelectric ceramics ultrasonic sensor


The same sodium barium titanate also has the characteristics of low piezoelectric activity, large coercive field, and the like. At present, sodium barium titanate is mainly modified by adding a variety of perovskite structure dopants. When TiO3 for ultrasonic sensor system is added to La, Nb, etc., the coercive field of the material decreases and the piezoelectric activity is greatly improved, piezoelectric disc crystal  is making this material suitable for manufacturing piezoelectric filters, oscillators, piezoelectric resonators, etc. It can be seen from the above that Lead-containing piezoelectric ceramics or lead-free piezoelectric ceramics are currently modified by the addition of various dopants. Therefore, in general, piezoelectric ceramic materials are all complex ceramic solid solutions.The composition of multicomponent materials adds complexity. This will bring great difficulties to the material's performance testing. When the traditional method analyzes the properties of a piezoelectric plate datasheet , in order to obtain the effect of a certain condition change on the performance, the other conditions are often fixed, and a large number of experiments are performed on the investigated condition to analyze. The situation becomes more complex if we are to study the effects of certain other conditions under a certain condition. Using Artificial Neural Networks (ARN) to establish accurate mathematical models to accurately predict performance. This method is accurate, concise, and more importantly, piezoelectric vibration transducer can be used to estimate the optimal formula with the best performance. Its practical value is immeasurable. After decades of research, PZT-based piezoelectric ceramics have made significant progress. It is one of the most important functional materials at home and abroad. Piezo transducer circuit has been widely used in high-tech fields such as electronics, radar, micro-displacement control, aerospace technology, and computers.


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