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ultrasonic |
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ultrasonic of, concerned with, or producing waves with the same nature as sound waves but frequencies above audio frequencies ultrasonic [¦əl·trə′sän·ik] (acoustics) Pertaining to signals, equipment, or phenomena involving frequencies just above the range of human hearing, hence above about 20,000 hertz. Also known as supersonic (deprecated usage). How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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POSITIONING FOR PRODUCTIVITY The position of a tool or object in 3D space can be determined with high precision through the use of the UOS-100 ultrasonic positioning system from Pepperl+Fuchs (www. a German-based supplier of laser, hot-plate, and ultrasonic welding equipment, has expanded its North American operations. Scientists have found signs of ultrasonic communication in a frog species that lives in China. |
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