acoustic measurements - определение. Что такое acoustic measurements
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Что (кто) такое acoustic measurements - определение

SCIENCE THAT DEALS WITH THE STUDY OF ALL MECHANICAL WAVES IN GASES, LIQUIDS, AND SOLIDS INCLUDING VIBRATION, SOUND, ULTRASOUND AND INFRASOUND
Acoustical; Acoustician; Acoustical data; Acoustical science; Acoustic measurements and instrumentation; History of acoustics; Subdisciplines of acoustics; Acoustic sensor; Mechanical radiation; Acoustic signals
  • Roman theatre]] in the city of [[Amman]]
  • The [[primary auditory cortex]], one of the main areas associated with superior pitch resolution
  • Ultrasound image of a fetus in the womb, viewed at 12 weeks of pregnancy (bidimensional-scan)
  • The fundamental acoustical process
  • St. Michael's Cave
  • Lindsay's Wheel of Acoustics, which shows fields within acoustics

History of latitude         
ASPECT OF HISTORY
History of latitude measurements
The Greeks studied the results of the measurements of latitude by the explorer Pytheas who voyaged to Britain and beyond, as far as the Arctic Circle (observing the midnight sun), in 325 BC. They used several methods to measure latitude, including the height of the Sun above the horizon at midday, measured using a gnōmōn (a word that originally meant an interpreter or judge); the length of the day at the summer solstice, and the elevation of the Sun at winter solstice.
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.

Википедия

Acoustics

Acoustics is a branch of physics that deals with the study of mechanical waves in gases, liquids, and solids including topics such as vibration, sound, ultrasound and infrasound. A scientist who works in the field of acoustics is an acoustician while someone working in the field of acoustics technology may be called an acoustical engineer. The application of acoustics is present in almost all aspects of modern society with the most obvious being the audio and noise control industries.

Hearing is one of the most crucial means of survival in the animal world and speech is one of the most distinctive characteristics of human development and culture. Accordingly, the science of acoustics spreads across many facets of human society—music, medicine, architecture, industrial production, warfare and more. Likewise, animal species such as songbirds and frogs use sound and hearing as a key element of mating rituals or for marking territories. Art, craft, science and technology have provoked one another to advance the whole, as in many other fields of knowledge. Robert Bruce Lindsay's "Wheel of Acoustics" is a well accepted overview of the various fields in acoustics.