PPT-PHYS 103 lecture 29

voice acoustics Vocal anatomy Air flow through vocal folds produces buzzing like lips Frequency is determined by thickness mass men have lower pitch muscle control stiffness. 01 2011 4 SOL Lab reports are not turned in Labs from Week 2 your second lab are due last week Labs from Week 3 your third lab are due This week You will not be permitted to do labs next week if you have not submitted any reports by then No Lab Nov Sensors. (bit incomplete. , still). Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. accelerometers. Light Level. phototransistors, photodiodes. 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 . Sensors. (. always incomplete. ). adapted from T. Murphy’s lectures. Sensing Categories. Voltage. starting easy: analog in. Distance. acoustic or light. Speed. hard; usu. via distance. Acceleration. 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. 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. Conservation of angular momentum. Static equilibrium. Simple harmonic motion and NSL. Simple harmonic motion and energy. Announcements:. . Hand-in homework #9 is due . at noon. on Tuesday, March 21. Adapted from T. Murphy’s lectures. The Rubric, Once Again. Sense some real-world quantity. input: analog or digital. sensor or user input (switches, keypad). Process the information. code in software. 1. Physics 102 lectures on light. Lecture 15 – EM waves. Lecture 16 – Polarization. Lecture 22 & 23 – Interference & diffraction. Lecture . 17 . – . Introduction to ray optics. Lecture . 1. Today we will.... Apply concepts from ray optics & lenses. Simple optical instruments – the camera & the eye. Learn about the human eye. Accommodation. Myopia, . hyperopia. , and corrective lenses. 1. Today we will.... Learn how combinations of lenses form images. Thin lens equation & magnification. Learn about the compound microscope. Eyepiece & objective . Total magnification. Learn about limits to resolution. 1. Physics 102 recently. Lecture . 13 . – . motional EMF & Lenz’ law. Lecture . 14 . – . Faraday’s law of induction. Lecture . 15 . – . electromagnetic waves. Basic principles of . magnetism. 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. 1. Today we will.... Learn about the . electric potential energy. Relate it to . work. Ex: charge in uniform electric field, point charges. Apply these concepts. Ex: electron microscope, assembly of point charges, dipole .