acoustic lining - Definition. Was ist acoustic lining
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Was (wer) ist acoustic lining - definition

WIKIMEDIA DISAMBIGUATION PAGE
The Silver Lining; Silver Lining (song); The Silver Lining (film); The Silver Lining (disambiguation); The Silver Lining (album); Silver lining; Silver Lining (disambiguation); Silver lining (disambiguation)

Acoustic liner         
  • A composite sandwich acoustic liner (A) with perforate face-sheet (B) honeycomb core (C) and back-skin (D)
  • (A) SDOF liner with perforate face sheet, (B) SDOF liner with wire-mesh face sheet, (C) DDOF liner with wire-mesh septum.
SANDWICH PANEL MADE BY POROUS FACING SHEET (E.G. PERFORATED METAL SHEET), A HONEYCOMB LAYER, AND AN IMPERVIOUS BACK-SHEET. IT USED TO LOWER THE NOISE OF AIRCRAFT ENGINES VIA HELMHOLTZ RESONANCE
Draft:Acoustic liner; Acoustic liners
Aircraft engines, typically turbofans, use acoustic liners to damp engine noise. Liners are applied on the internal walls of the engine nacelle, both in the intake and by-pass ducts, and use Helmholtz resonance principle for the dissipation of incident acoustic energy.
Acoustic shock         
NEGATIVE SYMPTOMS IN RESPONSE TO LOUD NOISE
Acoustic Shock
Acoustic shock is the set of symptoms a person may experience after hearing an unexpected, loud sound. The loud sound, called an acoustic incident, can be caused by feedback oscillation, fax tones, or signalling tones.
Acoustic microscopy         
  • In the plastic-encapsulated IC, gating was on a depth that included the silicon die, the die paddle and the lead frame.
  • Still scanning the top of the sample, the gating of the return echoes was then changed to include only the plastic encapsulant (mold compound) above the die. The resulting acoustic image is shown above. It shows the structure of the particle-filled plastic mold compound, as well as the circular mold marks at the top surface of the component. The small white features are voids (trapped bubbles) in the mold compound. (These voids are also visible in the previous image as dark acoustic shadows.)
  • Gating was then changed to include only depth of the die attach material that attaches the silicon die to the die paddle. The die, the die paddle, and other features above and below the die attach depth are ignored. In the resulting acoustic, shown above slightly magnified, the red areas are voids (defects) in the die attach material.
MAGNIFIED VISUALIZATION THROUGH ULTRASOUND
Ultrasonic force microscopy; Acoustic microscope; Acoustic Microscopy; Ultrasonic Force Microscopy
Acoustic microscopy is microscopy that employs very high or ultra high frequency ultrasound. Acoustic microscopes operate non-destructively and penetrate most solid materials to make visible images of internal features, including defects such as cracks, delaminations and voids.

Wikipedia

Silver Lining

Silver Lining, A Silver Lining or The Silver Lining may refer to:

  • Silver lining (idiom), a metaphor for optimism in the common English-language idiom "Every cloud has a silver lining"