可以录音和发声的衣服(有声)

M.I.T. researchers have developed a piezoelectric fiber¹ that would react to electric currents and have the potential to record or produce audio.

Clothing is so yesterday. I mean, really, what can it do? It can’t pick up sound, or beep at us if something’s wrong. Or can it? M.I.T. researchers say they’ve developed a fiber that would allow clothing to eventually do those things. Their study is in the journal Nature Materials.

A big key to the fiber is a plastic commonly used in microphones. Its particular molecular² structure involves a lopsided arrangement of fluorine atoms on one side and hydrogen atoms on the other. That asymmetry³ makes the plastic piezoelectric: it changes shape when it encounters an electric field.

So any electric current will then cause the fibers⁴ to vibrate. The fibers could act as a microphone or a speaker, depending on whether the vibrations⁵ were being recorded or amplified⁶.

The clothing mic could capture speech, sure. But it could also monitor health by detecting almost imperceptible sounds from the body. Sounds like blood flow, which could make a shirt a 24-hour blood-pressure monitor. So maybe someday, your clothes will say: “I detect a rise in blood pressure. Please sit down.”
 

1 fiber   

n.纤维，纤维质

参考例句：

• The basic structural unit of yarn is the fiber.纤维是纱的基本结构单元。
• The material must be free of fiber clumps.这种材料必须无纤维块。

2 molecular   

adj.分子的；克分子的

参考例句：

• The research will provide direct insight into molecular mechanisms.这项研究将使人能够直接地了解分子的机理。
• For the pressure to become zero, molecular bombardment must cease.当压强趋近于零时，分子的碰撞就停止了。

3 asymmetry   

n.不对称；adj.不对称的，不对等的

参考例句：

• These bands must introduce longitudinal asymmetry in the planetary albedo.这些云带必定引起行星反照率的经向不对称性。
• In any event the asymmetry is clear enough.总之，不对称是非常明显的。

4 fibers   

光纤( fiber的名词复数 )； （织物的）质地； 纤维，纤维物质

参考例句：

• Thesolution of collagen-PVA was wet spined with the sodium sulfate as coagulant and collagen-PVA composite fibers were prepared. 在此基础上，以硫酸钠为凝固剂，对胶原-PVA共混溶液进行湿法纺丝，制备了胶原-PVA复合纤维。
• Sympathetic fibers are distributed to all regions of the heart. 交感神经纤维分布于心脏的所有部分。

5 vibrations   

n.摆动( vibration的名词复数 )；震动；感受；（偏离平衡位置的）一次性往复振动

参考例句：

• We could feel the vibrations from the trucks passing outside. 我们可以感到外面卡车经过时的颤动。
• I am drawn to that girl; I get good vibrations from her. 我被那女孩吸引住了，她使我产生良好的感觉。 来自《简明英汉词典》

6 amplified   

放大，扩大( amplify的过去式和过去分词 )； 增强； 详述

参考例句：

• He amplified on his remarks with drawings and figures. 他用图表详细地解释了他的话。
• He amplified the whole course of the incident. 他详述了事件的全过程。