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초음파 SPI 기초물리 및 기초원리4

"초음파 SPI 기초물리 및 기초원리"에 대한 내용입니다.
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초음파 SPI 기초물리 및 기초원리4
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    소개

    "초음파 SPI 기초물리 및 기초원리"에 대한 내용입니다.

    목차

    1.Acoustic waves
    2.Mechanical waves
    3.Terms describing sound waves/The properties of sound
    4.Termas describing pulsed waves
    5.Level of sound

    본문내용

    1. Acoustic Waves
    1) Traveling variation (oscillation) in acoustic variables
    - Molecules oscillate back and forth to propagate sound waves
    - Do not move from one end of the medium to another
    - Acoustic variables
    : Temperature
    : Pressure - Concentration of force in an area
    : Density - Concentration of mass in a volume
    : Distance - Measure of particle moon
    2) Mechanical longitudinal wave
    3) Vacuum: a space void of matter
    - Sound cannot travel in a vacuum
    - Electromagnetic radiation, light/x-ray can travel through a vacuum
    2. Mechanical Waves
    1) require a medium for propagation (gas, liquid, or solid)
    - cause motion of the particles they are moving through
    - molecules do not travel from one end to the other (it is not a flow of particles).
    : Molecules vibrate back and forth
    - can be either Transverse or longitudinal.
    2) Longitudinal Waves
    - particles of medium vibrating in the same direction as the wave propagation direction
    - sound: mechanical longitudinal wave
    3) Transverse Waves/Shear Waves/Stress Waves
    - propagates by particles of the medium moving perpendicular to the wave propagation direction.
    - Bone: The only biological tissue that can cause the production of transverse waves

    참고자료

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    • 1. Acoustic Waves
      Acoustic waves are a fundamental concept in physics and engineering, with wide-ranging applications in various fields. These waves are the propagation of mechanical disturbances through a medium, such as air, water, or solid materials. Understanding the properties and behavior of acoustic waves is crucial for applications like audio technology, medical imaging, underwater communication, and structural health monitoring. Acoustic waves can exhibit phenomena like interference, diffraction, and reflection, which can be leveraged for practical purposes. Studying acoustic waves also provides insights into the underlying principles of wave propagation, which can be applied to other types of waves, such as electromagnetic waves. Overall, the study of acoustic waves is a rich and multifaceted field that continues to drive innovation and advancement in science and technology.
    • 2. Mechanical Waves
      Mechanical waves are a fundamental concept in physics, describing the propagation of disturbances through a medium. These waves can take various forms, such as transverse waves, longitudinal waves, and surface waves, each with its own unique characteristics and applications. Understanding the properties of mechanical waves, including their frequency, wavelength, and energy transfer, is essential for fields like engineering, acoustics, and seismology. Mechanical waves play a crucial role in various technologies, from the transmission of sound and vibrations to the detection of earthquakes and the analysis of material properties. Studying the principles of mechanical wave propagation also provides insights into the underlying physics of wave phenomena, which can be applied to other types of waves, such as electromagnetic waves. Overall, the study of mechanical waves is a rich and multifaceted field that continues to drive innovation and advancement in science and technology.
    • 3. Properties of Sound Waves
      Sound waves are a type of mechanical wave that propagate through a medium, such as air, water, or solid materials, and are responsible for the phenomenon of sound. Understanding the properties of sound waves is essential for a wide range of applications, from audio technology and music production to medical imaging and industrial processes. Key properties of sound waves include frequency, wavelength, amplitude, and speed of propagation, all of which can be influenced by the characteristics of the medium and the source of the sound. Studying the behavior of sound waves, such as their reflection, refraction, and interference, provides insights into the underlying principles of wave propagation and can lead to advancements in areas like noise control, acoustic design, and signal processing. The study of sound wave properties is a fundamental aspect of acoustics and continues to be an active area of research and development, with applications in fields ranging from entertainment to scientific exploration.
    • 4. Pulsed Waves
      Pulsed waves are a type of wave that consists of a single, discrete disturbance or pulse, rather than a continuous wave. These waves are commonly used in various applications, such as radar, sonar, and medical imaging, where the ability to precisely control and measure the timing and characteristics of the wave pulses is crucial. Pulsed waves can exhibit unique properties, such as the ability to penetrate through materials and the potential for high-resolution imaging, making them valuable tools in fields like engineering, medicine, and scientific research. Understanding the behavior of pulsed waves, including their propagation, reflection, and interference, is essential for designing and optimizing systems that rely on these types of waves. The study of pulsed waves is an active area of research, with ongoing developments in areas like pulse shaping, signal processing, and the integration of pulsed wave technology into new applications. As technology continues to evolve, the importance of pulsed waves and their applications is likely to grow, driving further advancements in this field.
    • 5. Levels of Sound
      The concept of sound levels is crucial in various fields, from acoustics and audio engineering to occupational health and safety. Sound levels, typically measured in decibels (dB), provide a quantitative way to describe the intensity or loudness of a sound. Understanding the different levels of sound and their associated impacts is essential for a wide range of applications, such as noise control, hearing protection, and the design of audio systems. Low sound levels are generally associated with quieter environments, while high sound levels can pose risks to human health and well-being, leading to issues like hearing loss, stress, and disruption of sleep patterns. Accurately measuring and analyzing sound levels is crucial for ensuring the safety and well-being of individuals in various settings, from workplaces to recreational environments. The study of sound levels also provides insights into the underlying principles of acoustics and wave propagation, contributing to advancements in fields like architectural design, transportation, and industrial processes. As our understanding of sound levels and their effects continues to evolve, the importance of this topic will only grow, driving further research and innovation in the field of acoustics and beyond.

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