| ultrasonics |
the application of ultrasonic energy to do work (specifically as opposed to subsonic, supersonic, or transsonic, qv).
출처: home.att.net/~Berliner-Ultrasonics/us-gloss.html
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| ultrasonics |
the technology associated with the use of sound above 15 kHz. Applied to thickness, density, flow and level sensing. Also used for imaging
출처: www.capgo.com/Resources/Sensors/SensorGlossary.htm...
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