1. Daily life: Speech sensors sample speech signals and are used
in microphones, recorders, mobile phones, and more. The voice
controlled lighting is equipped with an audio microphone sensor.
When a person makes a 1-second friction sound, the wall lighting
will automatically turn on for about 10 seconds.
2. Industry: Ultrasonic sensors utilize the positive and
negative piezoelectric effects of lead zirconate titanate PZT
piezoelectric ceramics in the conversion between electrical and
mechanical energy, apply electrical signals to the piezoelectric
ceramics, cause mechanical vibration, and emit ultrasonic
waves.
3. Military: Acoustic microphone sensors use sound waves to
determine the chemical composition of materials inside sealed
containers, thereby enhancing port security. In order to defend
against sniper attacks, the voice sensor system deploys and
classifies sniper firepower, providing the azimuth, altitude,
range, caliber, and error distance of sniper firepower.
4. Medical: Fiber optic microphone sensors have natural
anti-interference ability against magnetic fields and can be
applied to MRI communication. They are the only speakers that
can communicate with patients and doctors when scanning MRI.
