ultrasonic

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ultrasonic

 [ul″trah-son´ik]
beyond the audible range; relating to sound waves having a frequency of more than 20,000 Hz.

ul·tra·son·ic

(ŭl'tră-son'ik),
Relating to energy waves similar to those of sound but of higher frequencies (above 20,000 Hz).
[ultra- + L. sonus, sound]

ultrasonic

/ul·tra·son·ic/ (-son´ik) beyond the upper limit of perception by the human ear; relating to sound waves having a frequency of more than 20,000 Hz.

ultrasonic

(ŭl′trə-sŏn′ĭk)
adj.
1. Of or relating to acoustic frequencies above the range audible to the human ear, or above approximately 20,000 hertz.
2. Of, relating to, or involving ultrasound.

ul′tra·son′i·cal·ly adv.

ultrasonic

[ul′trəson′ik]
Etymology: L, ultra, beyond + sonus, sound
pertaining to ultrasound, or sound frequencies so high (greater than 20 kHz) that they cannot be perceived by the human ear.

ultrasonic

adjective Referring to an electromagnetic frequency faster than sound waves–eg, ≥ 30,000 Hz

ul·tra·son·ic

(ŭl'tră-son'ik)
Relating to energy waves similar to those of sound but of higher frequencies (above 30,000 Hz).
[ultra- + L. sonus, sound]

ultrasonic

Pertaining to sound waves above the upper limit of audibility, that is above about 20,000 Hz.

ultrasonic

high-frequency, inaudible sound energy waves (>30 000 Hz) above range of normal hearing

ul·tra·son·ic

(ŭl'tră-son'ik)
Relating to energy waves similar to those of sound but of higher frequencies (above 20,000 Hz).
[ultra- + L. sonus, sound]

ultrasonic (ul´trəson´ik),

adj pertaining to sound frequencies so high (greater than 20 kHz) they cannot be perceived by the human ear.
ultrasonic cleaner,
n an electronic generator that transmits high-energy and high-frequency vibrations to a fluid-filled container used to remove particulate matter from dental instruments and appliances.

ultrasonic

beyond the audible range; relating to sound waves having a frequency of more than 20,000 cycles per second.

ultrasonic cleaning
surgical instruments can be thoroughly cleaned by the use of ultrasonic waves which cause the formation of minute gas bubbles which, when they collapse, form shock waves.
ultrasonic heating
the use of ultrasound for producing localized hyperthermia.
ultrasonic pregnancy diagnosis
ultrasonic probe
used to disintegrate masses internally, e.g. the optic lens.
ultrasonic tooth scaling
the use of vibrations to remove supragingival calculus. See ultrasonic scaler.
References in periodicals archive ?
It is expected that weld strength increases with amplitude since volumetric heating during ultrasonic welding is proportional to strain squared ([[epsilon].
Guarding concepts for ultrasonic welding systems can fall into several categories, from simple local barriers to sophisticated, all-encompassing acoustic enclosures.
The experimental program has presented the important influence in joining ultrasonic process of the sonotrode active surface geometry together with basic energetic parameters of the ultrasonic welding process, the welding force (F), the welding time (ts) and the ultrasonic micro vibrations amplitude (A).
11] inserted unsheathed thermocouples into polystyrene (PS) welding parts for measuring the temperature variation during ultrasonic welding.
Market Analytics III-18 Table 66: Canadian Recent Past, Current & Future Analysis for Welding Machinery by Product Segment - Arc Welding Machinery, Gas Welding & Cutting Machinery, Resistance Welding Machinery, Laser Welding Machinery, Ultrasonic Welding Machinery, Other Welding Machinery, and Electrodes & Other Consumables Markets Independently Analyzed with Annual Sales Figures in US$ Thousand for Years 2013 through 2020 (includes corresponding Graph/Chart) III-18
Company offers ultrasonic welding and ultrasonic Cut'n'Seal systems as well as ultrasonic punching, including bench-top models with up to 6,000 W power, plus vibration welding and spin-welding equipment and tooling.
Modern ultrasonic welding machines are controlled in such a way that the amplitude is approximately constant during welding, this was not always the case [1].
Sonics Unveils Handheld Ultrasonic Welding Systems II-46
SecuraPack features the use of premium lithium cells, performance testing of all cells selected for each pack, pack operation over extended temperature ranges, ultrasonic welding of pack enclosures, production testing of full functionality of embedded circuitry, and compliance with the IEEE Standard 1625-2004 on Rechargeable Batteries for Portable Computers.
Herrmann Ultrasonics, Bartlett, Illinois, USA, reports that its HiQ line represents "a completely new generation" of machines for the ultrasonic welding of thermoplastics: "Because every welding application is different, the HiQ line adapts to all requirements with modular flexibility.
Ultrasonic welding is one of the most widely used processes for bonding polymers, valued for its speed, flexibility, and low cost.

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