Ultrasound

• What is ultrasonics?

  Sound with frequencies higher than 20,000 Hz
• What can be produced by electrical devices in ultrasonics?

  Electrical oscillations over a range of frequencies
• How can ultrasonics be converted into mechanical vibrations?

  By producing sound waves beyond human hearing
• What happens when an ultrasonic wave passes from one medium to another?

  Some of the wave is reflected off the boundary
• What is meant by partial reflection in ultrasonics?

  Some wave energy is reflected, some transmitted
• How can you detect the distance to a boundary using ultrasonics?

  By measuring the time taken for reflection
• What is one application of ultrasonics in medicine?

  Prenatal scanning of a fetus
• How do ultrasonic waves interact with the body?

  They can pass through and reflect at boundaries
• What is the significance of the boundary in ultrasonic imaging?

  It determines the reflection and detection of waves
• What is the role of a computer in ultrasonic imaging?

  To process and produce a video image of the fetus
• What is a potential risk associated with ultrasonics?

  Ultrasonic waves may be dangerous in some cases
• How can ultrasonics be used in industrial imaging?

  To find flaws in materials like pipes or metals
• What is one way ultrasonics can be used in detecting flaws?

  By identifying reflections from internal defects
• How do ultrasonic waves behave when they encounter different materials?

  They can reflect, transmit, or be absorbed
• What is one use of ultrasonics in finding flaws in materials?

  Detecting flaws in pipes or metals
• What is the effect of ultrasonic waves on different materials?

  They can penetrate and reflect based on density
• How can ultrasonics be used in industrial applications?

  To inspect materials for structural integrity
• What is the significance of the boundary in ultrasonic applications?

  It affects how waves are reflected and transmitted
• What is one characteristic of ultrasonic waves?

  They can pass through various materials
• Why is it important to understand ultrasonic wave behavior?

  It helps in applications like medical imaging
• How can ultrasonic waves be utilized in medical diagnostics?

  By creating images of internal body structures
• What happens to ultrasonic waves at boundaries between different media?

  Some waves reflect, some transmit
• What is a common use of ultrasonics in industry?

  Finding flaws in materials like metals
• How do ultrasonic waves interact with boundaries?

  They can reflect or transmit depending on density
• What is the role of ultrasonic waves in prenatal scanning?

  To create images of the developing fetus
• How can the time taken for reflections be used in ultrasonics?

  To measure the distance to a boundary
• What is a potential danger of using X-rays compared to ultrasonics?

  X-rays can be dangerous in certain cases
• How can ultrasonics be beneficial in industrial applications?

  They help detect flaws in materials
• How can ultrasonics be used to find flaws in pipes?

  By detecting reflections from internal defects
• What is the significance of ultrasonic wave behavior in diagnostics?

  It determines how images are formed
• What is one application of ultrasonics in finding flaws?

  Detecting flaws in materials like metals
• How do ultrasonic waves behave when they encounter different materials?

  They can penetrate and reflect based on density
• How can ultrasonics be used in industrial applications?

  To inspect materials for structural integrity
• What is the significance of the boundary in ultrasonic applications?

  It affects how waves are reflected and transmitted
• What type of radiation is mentioned as dangerous?

  X-rays
• In what context are industrial imaging techniques used?

  To find flaws in materials
• What are the uses of ultrasound in industrial imaging?

  1. Finding flaws in materials
  2. Inspecting objects like pipes or metals
• What can ultrasound be used to find flaws in?

  Objects such as pipes or metals
• How do ultrasound waves behave when entering a material?

  They are usually reflected by the far side
• What happens to ultrasound waves if there is a flaw like a crack inside an object?

  The waves will be reflected sooner