ultrasonic scanning - definição. O que é ultrasonic scanning. Significado, conceito
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O que (quem) é ultrasonic scanning - definição

PROCESS THAT USES ULTRASOUND AND A CLEANING SOLVENT TO CLEAN ITEMS
Ultrasonic bath; Ultrasonic cleaner; Sonic bath; Ultrasonic agitation; Ultrasonic cleaners
  • Sonorex ultrasonic cleaner from the 1970s or 1980s
  • Ultrasonic transducers showing ~20 kHz and ~40 kHz stacks.  The active elements (near the top) are two rings of [[lead zirconate titanate]], which are bolted to an aluminium coupling horn.
  • Ultrasonic cleaning of a mobile phone

Scanning (journal)         
SCIENTIFIC JOURNAL
Scanning the journal of scanning microscopies; Scanning: J Scanning Microsc; Scanning: J. Scanning Microsc.; Scanning (Hindawi journal); Scanning: The Journal of Scanning Microscopies
SCANNING: The Journal of Scanning Microscopies is a peer-reviewed scientific journal covering all aspects of scanning microscopy, including scanning electron, scanning probe and scanning optical microscopies. Since 1 January 2017, Scanning become fully open access.
Ultrasonic nozzle         
  • High Temperature Ultrasonic Nozzle
Ultrasonic Nozzle
Ultrasonic nozzles are a type of spray nozzle that use high frequency vibrations produced by piezoelectric transducers acting upon the nozzle tip that create capillary waves in a liquid film. Once the amplitude of the capillary waves reaches a critical height (due to the power level supplied by the generator), they become too tall to support themselves and tiny droplets fall off the tip of each wave resulting in atomization.
Scanning tunneling microscope         
  • A large STM setup at the [[London Centre for Nanotechnology]]
  • Scanning tunneling microscope operating principle
  • Schematic view of an STM
  • A 1986 STM from the collection of [[Musée d'histoire des sciences de la Ville de Genève]]
  • The real and imaginary parts of the wave function in a rectangular potential barrier model of the scanning tunneling microscope
  • Tip, barrier and sample wave functions in a model of the scanning tunneling microscope. Barrier width is ''w''. Tip bias is ''V''. Surface work functions are ''ϕ''.
  • Negative sample bias ''V'' raises its electronic levels by ''e⋅V''. Only electrons that populate states between the Fermi levels of the sample and the tip are allowed to tunnel.
A MICROSCOPE USED FOR LOOKING AT ATOMS.
Electron tunnel microscopy; Scanning tunneling; Scanning Tunneling Microscope; Scanning tunneling microscopy; Scanning tunnelling microscope; Scanning tunnelling microscopy; Microscopy, scanning tunneling; Scanning-tunneling microscope; Scanning Tunneling Microscopy; STM microscope; Josephson tunneling microscope
A scanning tunneling microscope (STM) is a type of microscope used for imaging surfaces at the atomic level. Its development in 1981 earned its inventors, Gerd Binnig and Heinrich Rohrer, then at IBM Zürich, the Nobel Prize in Physics in 1986.

Wikipédia

Ultrasonic cleaning

Ultrasonic cleaning is a process that uses ultrasound (usually from 20 to 40 kHz) to agitate a fluid, with a cleaning effect. Ultrasonic cleaners come in a variety of sizes, from small desktop units with an internal volume of less than 0.5 litres (0.13 US gal), to large industrial units with volumes approaching 1,000 litres (260 US gal).

The principle of the ultrasonic cleaning machine is to convert the sound energy of the ultrasonic frequency source into mechanical vibration through the transducer. The vibration generated by the ultrasonic wave is transmitted to the cleaning liquid through the cleaning tank wall, so that the micro-bubbles in the liquid in the tank can keep vibrating under the action of the sound wave, destroying and separating the dirty adsorption on the surface of the object.

Depending on the object being cleaned, the process can be very rapid, completely cleaning a soiled item in minutes. In other instances cleaning can be slower, and exceed 30 minutes.

Ultrasonic cleaners are used to clean many different types of objects, including jewelry, scientific samples, lenses and other optical parts, watches, dental and surgical instruments, tools, coins, fountain pens, golf clubs, fishing reels, window blinds, firearm components, car fuel injectors, musical instruments, gramophone records, industrial machine parts, and electronic equipment. They are used in many jewelry workshops, watchmakers' establishments, electronic repair workshops, and scientific labs.