Li Hui Dong adds 0.94 TiO3 to La and Nb, the coercive field of the material is reduced, the piezoelectric activity is improved greatly, which make this material of piezoelectric ceramics suitable for making the piezoelectric filter, oscillator, piezoelectric resonator, etc. It can be seen from the above, regardless of lead-containing piezoelectric ceramics or lead-free piezoelectric ceramics in the current situation, piezo ring datasheet pzt 4 mainly adding a variety of dopants for modification. Therefore, in general, piezoceramic crystal materials are complex ceramic solid solution. The composition of the multi-line material adds even more complexity. Piezoelectric tube crystal datasheet will bring great difficulties for material performance testing. Traditional methods for material performance analysis, in order to get the impact of changes in a certain conditions on performance, which often fixed other conditions, a lot of experiments on the conditions examined for analysis. The piezoelectric piezometer situation becomes more complicated if one looks at the effects of several other conditions under one condition. Guo Dong and Cai Kai et al is using Artificial Neural Networks to establish Precise Mathematical Models for accurate prediction of performance. The method is accurate, concise, more importantly, can optimize the optimal formula of the best performance, its practical value is immeasurable.The piezoelectric ceramic of ultrasonic transducer equivalent driver circuit that is using positive piezoelectric effect expands in the size and function of the device is constantly improving. The pressure to converter operates in a wide range of (i ~ 2 xio B) N with a conversion error is less than 1% , a tension sensor that has a linear characteristic even when it is determined to be deformed by 10 , it has 5 times as sensitive as a resistive sensor in determining the vibrational resonance, and the sensor has a size of 2.5 x 6. 3 X 0,25 mm, weight is 0.49 in the form of a rectangular piezoelectric ceramic sheet, at a deformation level of 10, the sensor generates a voltage of 0.25 V and acts on a small force (flies hit the glass) of the special and sensitive signal sensor ; by less than the IN force to start the button and the starter 3, the heat is up to 50 0 ~ 55 0 ℃, vibration sensor and acceleration sensor, the liquid energy into electricity power generation, It is possible to manufacture piezoelectric ceramic generators such as piezoelectric ceramic generators that utilize the gas flow energy of an aircraft engine and even the exhaust gas flow energy emitted by a vehicle.