Previous attempts to use cardiac muscle power to run pacemakers relied on piezoelectric materials.

之前使用心脏肌肉能量运行起搏器的尝试是依赖于压电材料。

And we thought, OK, let's combine it with a piezoelectric material.

我们想，好吧，让我们将它与压电材料结合起来。

Piezoelectric quartz crystals in the sonar's transmitter vibrated when they were subjected to alternating voltage.

声纳发射器中的压电石英晶体在受到交流电压时会振动。

Let's look at quartz, a piezoelectric material made of silicon and oxygen.

让我们看看石英，一种由硅和氧制成的压电材料。

Piezoelectric materials can have different structures.

压电材料可以有不同的结构。

Piezoelectric materials turn mechanical stress, like pressure, sound waves, and other vibrations into electricity and vice versa.

压电材料将压力、声波和其他振动等机械应力转化为电能，反之亦然。

Dr Zhang and Dr Yang speculated that they could improve matters by arranging for their piezoelectric composites to be more dramatically deformed.

张浩和杨斌推测，他们可以通过让压电复合材料更加变形的方法改善这个问题。

More materials are piezoelectric than you might think.

压电材料比您想象的要多。

And the stronger the compression on piezoelectric materials, the larger the voltage generated.

并且对压电材料的压缩越强，产生的电压就越大。

Transducers are made from arrays of tiny piezoelectric structures that convert electrical signals into ultrasound waves by vibrating at an appropriate frequency.

压电式换能器是由具有‘压电'效应的一系列敏感元件机构组成。敏感元件机构通过‘定频'震荡将电信号转换成超声波。