PPT-Lecture 6: Ultrasound Physics & Hardware

Dr Sarah Bohndiek Learning outcomes After these lectures you should be able to Explain how ultrasound interacts with tissue Understand where ultrasound imaging contrast comes from Describe how ultrasound signals are generated and detected. 11. Assembly Language and . Arduino. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. ultimately just binary (or hex) instructions loaded into the . 4. LCD Text Display. Keypads and Time Slicing. Interrupts. 2×16 LCD . Typically 5×8 dots per character. Note 16 pins: indicator of common interface. Lecture 4. 2. Typical LCD Unit . pinout. pin. function. Assembly Language and . Arduino. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. ultimately just binary (or hex) instructions loaded into the . Krystal . Kerney. Kyle Fontaine. Ryan O’Flaherty. Basics of Ultrasound. Ultrasound is sound with frequencies higher than about 20 kHz. For medical ultrasound, systems operate at much higher frequencies, typically 1 – 10 MHz. Assembly Language and . Arduino. Behind the C code (or sketch). C provides. a somewhat human. -readable interface. but . it . gets . compiled. into machine instruction set. ultimately just binary (or hex) instructions loaded. Assembly Language and . Arduino. Adapted from T. Murphy’s slides. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. 11. Assembly Language and . Arduino. Behind the C code (or sketch). C provides a somewhat human-readable interface. but it gets . compiled. into machine instruction set. ultimately just binary (or hex) instructions loaded into the . LCD Text Display. Keypads and Time Slicing. Interrupts. adapted from . T. Murphy’s . lectures. 2×16 LCD . Typically 5×8 dots per character. Note 16 pins: indicator of common interface. Phys 124: Lecture 4. Kerney. Kyle Fontaine. Ryan O’Flaherty. Basics of Ultrasound. Ultrasound is sound with frequencies higher than about 20 kHz. For medical ultrasound, systems operate at much higher frequencies, typically 1 – 10 MHz. J.C. Lacefield. of the IAEA publication (ISBN 978-92-0-131010-1):. Diagnostic Radiology Physics: . A Handbook for Teachers and Students. . Objective:. . To familiarize students with Physics or Ultrasound, . Raytracing. Lecture 7: Optics. UCSD Physics 122. 2. Reflection. We describe the path of light as straight-line rays. “geometrical optics” approach. Reflection off a flat surface follows a simple rule:. Transistors, Cable Impedance. diode bridge. Lecture 8: Electronics. UCSD Physics 122. 2. Basic Circuit Analysis. What we won’t do:. common electronics-class things: RLC, filters, detailed analysis. Analog Handling. Once the microcontroller is managed, it’s often the analog end that rears its head. getting adequate current/drive. signal conditioning. noise/glitch avoidance. debounce. is one example. Mustaqbal. University College. 3. rd. . Properties of Ultrasound . Assistant lecturer: . AnsamFadil. . Ali . Showard. 2. . Properties of Ultrasound. Sound . is a pressure disturbance (vibration) transmitted through all forms of matter: gases, .