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  "path": "/news/2026-02-hair-thin-silica-fiber-microphone.html",
  "publishedAt": "2026-02-09T09:10:06.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Energy & Green Tech"
  ],
  "textContent": "Researchers have fabricated a hair-thin microphone made entirely of silica fiber that can detect a large range of ultrasound frequencies beyond the reach of the human ear. Able to withstand temperatures up to 1,000°C, the device could eventually be used inside high-voltage transformers to detect early signs of failure before power outages occur.",
  "title": "Hair-thin silica fiber microphone detects ultrasound from 40 kHz to 1.6 MHz"
}