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How Piezoelectric Floor Tiles Generate Electricity from Footsteps
压电地砖如何将行人脚步转化为电能
精读先不看文字，完整听一遍。
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Piezoelectric floor tiles contain crystals like quartz or lead zirconate titanate that produce voltage when mechanically stressed.压电地板砖内含石英或锆钛酸铅等晶体，受机械应力时可产生电压。
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Each step applies pressure that deforms the crystal lattice, separating positive and negative charges across its surface.每一步施加的压力都会使晶格变形，导致其表面正负电荷分离。
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Energy harvesters convert these brief high-voltage pulses into stable low-voltage DC power for LED lighting.能量采集器将这些短暂的高电压脉冲转换为稳定的低压直流电，供LED照明使用。
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Installations in Tokyo train stations and London airports demonstrate scalability under real-world foot traffic loads.东京火车站和伦敦机场的安装案例表明，该系统可在真实人流量下规模化应用。
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Efficiency depends on step frequency, weight distribution, and tile alignment to maximize cumulative deformation cycles.效率取决于步频、体重分布及地砖排列，以最大化累积形变次数。
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Engineers embed capacitors to store intermittent energy until enough charge accumulates for useful output.工程师嵌入电容器，暂存间歇性能量，直至积累足够电荷以输出有效电力。
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Unlike solar panels, piezoelectric systems generate power day and night wherever movement occurs consistently.与太阳能板不同，压电系统在有持续运动的任何时间、任何地点均可发电。
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Material fatigue testing ensures tiles withstand ten million steps before performance declines by more than 10%.材料疲劳测试确保地砖经受一千万次踩踏后性能衰减不超过10%。
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These systems illustrate energy conversion principles linking mechanics, electromagnetism, and circuit design.这些系统体现了力学、电磁学与电路设计相耦合的能量转换原理。
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They transform passive infrastructure into active contributors to localized renewable energy networks.它们将被动基础设施转变为本地可再生能源网络的主动贡献者。
精读 · 大约 10 分钟
听 → 读 → 学表达 → 懂 → 今天会说这一句 → 跟读录音 → 自己说一句。
③ 学 · 重点表达
- These systems illustrate energy conversion principles linking mechanics, electromagnetism, and circuit design. 这些系统体现了力学、电磁学与电路设计相耦合的能量转换原理。
- They transform passive infrastructure into active contributors to localized renewable energy networks. 它们将被动基础设施转变为本地可再生能源网络的主动贡献者。
- Engineers embed capacitors to store intermittent energy until enough charge accumulates for useful output. 工程师嵌入电容器，暂存间歇性能量，直至积累足够电荷以输出有效电力。
④ 懂 · 选一选
⑤ 今天会说这一句
These systems illustrate energy conversion principles linking mechanics, electromagnetism, and circuit design.
⑥ 跟读并录音
These systems illustrate energy conversion principles linking mechanics, electromagnetism, and circuit design.
第一版：录下来、回听、再听标准音。系统打分以后再加。
⑦ 说 · 自己来一句
用今天的表达，自己说一句。
例子：These systems illustrate energy conversion principles linking mechanics, electromagnetism, and circuit design.
已记下。连续天数以后会显示在课表里。
陈老师指导
课程开发中，敬请期待。成人和孩子都可以先自学听读、精读。
这边的讲解音轨还在做。想先跟着老师走完固定 30 课，可以去陈老师带读社（和自学通行不是同一份会员）。
课程开发中，敬请期待。