In chapter two, the direct and inverse piezoelectric effect of piezoelectric ceramic are studied, and the piezoelectric equation of piezoelectric ceramic is deduced. 第二章.分析了压电陶瓷的力学和电学性能,阐述了它的正、逆压电效应,推导了压电陶瓷的压电方程。
The displacement mechanisms of electrostrictive effect, inverse piezoelectric effect and ferroelectric effect are systematically analysed in a microcosmic way, and the results of analyses indicate that the displacement mechanisms of these three effects are totally different; 从微观上系统分析了电致伸缩效应、逆压电效应和铁电效应的位移机理,表明:三种效应的位移机理是根本不同的;
Ultrasonic motors are a kind of motor which using inverse piezoelectric effect of piezoelectric ceramic converts electrical energy into mechanical energy. So piezoelectric ceramic material is very important for motor's performance. 超声电动机是利用压电陶瓷的逆压电效应,将电能转换为机械能的一种压电换能器,因而压电材料对电动机的性能起着至关重要的作用。
Being quite different from the traditional electromagnetic motors, the ultrasonic motor is a new type of motor, which is based on the inverse piezoelectric effect of the piezoelectric ceramics and driven by the ultrasonic vibration. 超声波电机(ultrasonicmotor)不同于传统的电磁式电机,它是利用压电陶瓷的逆压电效应,将超声振动作为动力源的一种新型电机。
The displacement of piezoelectric ceramic actuators is mainly due to inverse piezoelectric effect and ferroelectric effect; the contribution of electrostrictive effect to the displacement is so little that it can be neglected; 压电陶瓷执行器的位移主要是由逆压电效应、铁电效应所引起的,电致伸缩效应对位移的贡献极其微弱,可以忽略不计;
Piezoelectric pump, a new type of piezoelectric actuator, has many potential applications in the future due to its characteristics. The piezoelectric actuator is a kind of device which gets the mechanical actuating or controlling ability by use of inverse piezoelectric effect of the piezoelectric material. 压电泵作为一种新型压电驱动器,有着广阔的发展前景。压电驱动器是利用压电体逆效应形成机械驱动或控制的一类装置。
Ultrasonic micro-motor uses the inverse piezoelectric effect of piezoelectric material to excite the stator to vibrate, and drive the rotor to rotate through the friction between stator and rotor. 超声波微电机是利用压电材料的逆压电效应激发定子振动,再通过定转子间的摩擦作用驱动转子旋转。
The proposed model can reflect the inverse piezoelectric effect and dielectric characteristics of the piezoceramics, mechanical characteristics of the stator and the rotor, and frictional characteristics, and it can explain the energy transfer process clearly. 该模型能够反映压电陶瓷的逆压电效应及介电特性,定、转子的机械运动特性和摩擦接触特性,具有明确的物理意义,能够反映整个电机系统的功率流动情况。
With the inverse piezoelectric effect of piezoelectric materials and the friction transmitting ultrasonic vibration, ultrasonic motor can get the power to become a driving mechanism. 超声波电机是一种利用压电材料的逆压电效应,借助摩擦传递弹性超声波振动以获得动力的驱动机构。
The study of the deformation control for piezoelectric smart laminated plate by the analytical method and the find of the electrical boundary conditions of piezoelectric layer in line with the unique features of direct and inverse piezoelectric effect. 对压电智能层合板的变形控制进行了解析法研究,提出了符合压电材料正逆压电效应特性的压电层表面的电学边界条件。
Piezoelectric ceramic materials have many advantages, not only positive and inverse piezoelectric effect, but also fast response and low cost, and the emergence provides a new sensing method for structural damage detection and health monitoring. 压电陶瓷材料具有正、逆压电效应,而且还具有响应快、成本低等优点,它的出现为结构损伤检测和健康监测提供了新的传感手段。