How to Generate Electricity from Piezo

Generating electricity from piezo could be as easy as making a flick with your finger..... curious to know how? Let's learn more about this amazing device called piezo, which can be used for generating music as well as electricity.

压电如何响应力和电力

压电材料是一种结晶物质，具有在晶体结构遭受一定的机械应力水平时产生电能的特性。

Conversely when the same crystalline structure is subjected to an electric current it exhibits an equivalent level of deformation which in turn causes a sound to be generated.

这正是为什么压电元素中使用ers for generating sound by applying an pulsating voltage across it.

因此，我们可以得出结论，压电材料的讨论特性是柔性和可逆的，这意味着它允许变形时发电以及电动时的声音产生。

话虽如此，必须注意不要过度限制压电上的压力水平，因为试图从中发电，因为压电元件的变形极限为
极小，超出可能导致破裂或永久性
元素的损坏。

How to Generate Electricity from Piezo

为了实验来自压电的发电，获取压电材料的最简单方法是采购standard 27mm piezo elementwhich are normally used inpiezo buzzer circuits。

下图描绘了几个27mm的压电元素，这些元件可能很容易在大多数电子备件商店中获得。

右侧图片显示了一个2针压电元件，而另一个则表示3线，其中任何一个都适用于实验。

一旦采购了压电，向其焊接了几条电线，将一个20mA白色的线连接到压电的另一端。

一旦建造上述组件，您就可以通过用手指轻弹压电的边缘来使LED瞬间发光。

每当您用手指撞击压电时，您都会在那一瞬间发现LED照明。

视频剪辑：

And somehow if the striking is sustained through some external means, would enable the LED to illuminate rapidly, or even continuously if a capacitor is connected across its leads.

If the output across the piezo wires is measured, you would be surprised to see the voltage to be as high as upto 3V depending on how hard the striking was.

在进行上述实验的同时，请确保用另一个手指从相对的边缘紧紧捏紧压电

申请提示：

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Please also see how to用压电垫电路充电电池

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使用压电点亮的LED发光的CAROM板

上述解释的概念可以在CAROM板上实施压电传感器和照明LED的电力，以在硬币内以及板边缘的内部表面周围产生有吸引力的LED照明。

SMD LEDs could be used for flush embedding them within the carom coins surface such that they do not affect the sliding effect of the coins.

The inner edges of the board could be also embedded with piezo/LED assemblies for generating the proposed piezo electric LED illumination.

Once this is done, each time the coins are struck or when coins hit the board edges the associated LEDs could be expected to light up brightly for that second producing interesting LED light show.

在儿童鞋中使用压电电力。

通过适当固定压电，在鞋子的脚后跟下方的LED组件，可以在儿童鞋中有效地使用压电电力的效果。这将使LED每次穿上这些增强鞋的孩子采取措施时，能够明亮地照亮。

Many more such innovative ideas could be implemented by using the proposed concept of generating electricity from a piezo buzzer element, if you think you have even more interesting ideas do let us know about it through your comments.