Fall 2002 HW

Due Date	HW to HAND IN	Comments on HW Assignments	Points
8-28-02 W	None.	Syllabus quiz.	10 pts
8-29 H	Exercise 1.4, #1-14	Email Exercises to Mr. R. >Start working on computer technology Top 20 Engineering report.	R
8-30 F	Report on one of the "Top 20 Engineering Feats of the 20th Century"	Report format: 2 pages, doubled spaced. Emailed as Word attachment by start of class. Hyperlinked References will point to original web site. All additional references to be placed at the end of report using standard format. Make sure you state (1) What the computing achievement was, (2) Who or what was involved, (3) chronicle how the design was developed and produced, and (4) your opinions on the effect on society of this feat. Be prepared to present your main points to the class. Helpful start: See this site in Web links	30 pts
9-3 T [TOP]	Ex. 2.2.5 #1	Take some reading notes through Chapter 2.2	10 pts
9-4 W	Exercises # 2.1	Email to Mr. R DSP & VAB Quiz. Know the VAB 1.0 introduction: > Differences in VAB's running on DSP vs. the PC (requires your student password) > How to connect and specify parameters of blocks in VAB	R
9-5 H	Exercises 2.2.5 finished	Email to Mr. R	R
9-6 F	Prepare for a Ch. 2.0-2.3 Quiz	See the Chapter 2 Outline for the objectives	10 pts
9-9 M	Exercise 2.3.3	Gone over in class
9-10 T	Investigate Waveform Synthesis Applications for cell phones	In an email, describe how you might be able to create a novel audio application using waveform synthesis for cell phones with stereo outputs. This could be a business model proposal or a more technical discussion of what, how, and why people would want to use this service/application. Some of the Student Proposals What we discovered: Polyphone cell phone ring tones	20 pts
9-11 W	Waveform Series	1. Using additive synthesis (based on Fourier's ideas) be able to describe the basic mathematical series needed to generate: > square waves, sawtooth waves, & triangle waves. 2. Why are both Cosine and Sine functions often used in such applications? 3. Briefly discuss 2 different applications for Fourier Analysis in science/engineering. > Use any of the Fourier Java Applets to discover (and hear) the series needed to make each waveform. The Phasor Factory is especially helpful. > Email your answers to Mr. R.	10 pts
9-12 H	Exercises #2.4.3 on p. 35	See p. 34 for help on the chords.	R
9-13 F	None to Collect	Chapter 2.0-2.4 Quiz	20 pts
9-17 T	1) Biosonar spectrograms 2) Spectrogram Shareware & screenshots	See the Spectrogram Applications HW > Email to Mr. R before class Terms to know: > Acoustic impedance > Cross-correlation > Decibels (dB) > Doppler shift > Power Spectrum > Spectrogram > Ultrasound	20 pts
9-18 W	none	Chapter 2 Test
9-19 H	none	Read Ch. 3.1- 3.3
9-20 F	Exercises 3.1.4	Turn in.	R
9-23 M	Exercises 3.1.3, #4-6 as bonus; Exercises 3.2.2	Turn in.	R
9-24 T	Digital Instruments: Waves Web Overview. You're responsible for knowing the major concepts from Ch. 3 that are presented here (dB, bandwidth, frequency and time domains, compression waves, transverse & longitudinal)	Visit, read, and run the applets (if present) that describe the properties of waves as found in these 5 websites: (1) Wave Animations, (2) Longitudinal Waves, (3) Johns Hopkins Tutorial on Fourier Analysis as Applied to Instruments, (4) Natural Frequencies and Music, and (5) How is Signal Processing Applied to Speech and hearing science	R
9-25 W	Exercises 3.2.2 (if not done in class on Wed).	Remember that rate (m/s) = wavelength (m)/ period (s) or rate = (wavelength)(frequency). Note this correction to the book's Ch. 3 pg. 15 equation: fn = (n *(T/m)1/2 )/ 2L. > For Question #3 assume that the tension (T) and string thickness (m) remain the same.	R
9-26 H	"Resonance" Handout packet- Case Questions #1-3	This 14 page packet addresses many of the topics required to physically model a guitar string's vibrations. The main topics are resonance, standing waves, harmonics, and harmonic oscillators. If you get stuck on Case Questions #2 or 3, grab a rope/ ruler and try out your ideas!	20 pts
9-27 F	Resonance Packet- Exercises #1-3, 5, 7, 12, 15	Email or do on paper.	R
9-30 M	Online Quiz over Chapter 3 taken. Results sent to Mr. R automatically. Watch email accounts for passwords and links.	Exercises 3.3.3, 3.3.4 from book to be emailed or done on paper for a check grade	Quiz = 20 pts
[TOP]	OCTOBER HW
10-1 T	"Tooth Tunes" lab summary;	Email your description of how the "Tooth Tunes" device worked. Start your essay with the output jack of the radio. Include in your essay these terms: electrical signal, voltage, fluctuations, copper coil, magnetic field, induction, attraction, repulsion, compression, frequency, treble, bass, resonant energy transfer, outer, middle, and inner ear, nerves, brain. This should be a minimum of one page. Applications for such a transducer can be found at: > Novel applications for the transmission of audio signals in Web Links I.	30 pts
10-2 W	"Tank Circuits" packet questions Gosney speaker worked on	Answer these questions after reading about the fundamental circuits used in radio and telephones. See the Gosney template handout. Standard materials needed: paper cone, tape, glue, copper wire, button magnet, salad bowl.	R
10-3 H	Radio Broadcast Sequence known. Exercises #1, 3, 6 from packet. Gosney speaker initial check	Be prepared to describe how an AM/ FM radio works. You need to understand the handout's "Check your Understanding" questions. Discuss how the tank circuit enables end the weak analog voltages to be amplified and then broadcast and received. Answer Exercises #1, 3, 6 at the back of the "Tank Circuits" packet. Bring in your functional (done!) Gosney speaker in for an initial trial. Debug your design! Grading will be based on these criteria: 1) Frequency range (lowest to highest) 2) Amplitude of sound at around 400 Hertz 3) Quality of construction 4) Innovation beyond the given Gosney template 5) Ability to function as a microphone	Quiz? 20 pts
10-4 F	Final Gosney speaker due	See grading criteria above. "Multimedia Sound" packet has been read and Discussion will follow. Know the objectives for this packet. ALL HW NOT YET TURNED IN IS DUE ON THIS DATE!	100 pts!
10-7 M	Grades due	No HW Due!
10-8 T	Mid-Mark Comments due	Review Ch. 3 Digital Music Objectives
10-9 W	Chapter sections 4.1 & 4.2 Reading	none.
10-10 H	Ch. 4 Exercises 4.6 & 4.7	Email (better to sketch these out) or bring in a hard copy	R
10-11 F	Chapter 4 Web Tutorial I	Visit and go through all of these imaging tutorials: a) Digital Imaging Tutorial by Big Ben b) Cornell University Tutorial for digital archiving	R
10-14 M	Chapter 3 Digital Instruments Test Project Sketches	Based on Chapter 3 objectives that you must study Sketches of EvoBot II Design Proposals with labels due.	100 pts (test) 40 pts (lab)
10-15 T	Round 2 of EvoBot II Design Proposals Read Section 4.3	Analysis weighting of proposed structural solutions due. > Design Roundtable Discussion will be based on these rankings	R
10-16 W	Exercise 4.9, p. 34	Email or bring in a hard copy	R
10-17 H	Chapter 4 Web Tutorial II	Visit and go through the Ohio State Tutorial for basic input-output of digital images b) Quiz on the hardware topics covered here is quite likely!	Know for a quiz!
10-21 M	Chapter 18; Label location and functions of eye structures	> Read Ch. 18.0- 18.2.2. > Given a drawing of the eye be able to identify and briefly state the function of these parts in the process of seeing: a) cornea b) iris c) lens d) pupil e) retina f) cones (w/ red, green, or blue opsins. How do the light primaries (RGB) relate to the resonate frequencies of these pigments?) g) rods h) fovea i) optic nerve	Know for a quiz!
10-22 T	Email these: > Exercises 18.3 at end of Chapter section 18.2 >Comparison Table for 3 light sensors.	Your email to Mr. R should include: > Exercises 18.3 #1,2 from the end of Chapter section 18.2 > A table (can be done in Excel or Word) that contrasts and compares these three light sensors: silver gelatin film, the human retina, and a CCD chip. Categories to compare in the table should include: a) photosensitivity range in wavelength or frequency b) relative resolution ranking (pixels per cm) c) analog or digital d) what is actually absorbing the photons of light in the light-sensitive material e) what is actually changed as a result of absorbing a photon f) refresh rate (cycle time to be ready between exposures) g) what allows control of the amount of light reaching the light sensor h) what usually focuses the light onto the sensor i) the storage medium for the captured images	10 pts
10-23 W	Web Tutorial: Physics 2000: "The TV". Read Chapter 18.3	After doing the Physics 2000: "The TV" tutorial, email these answers to Mr.R: a) What is the relationship between persistence of vision and the scanning rate of a CRT? b) Briefly describe the role of the anode, cathode, electromagnet "guide", shadow mask, & phosphor dots on the screen of a CRT. c) What is additive color theory ("painting with light")? c) How can brightness and color be changed in a color CRT display? d) What is the relationship between a magnetic field and the motion of electrons passing through it?	10 pts
10-24 H	Web Tutorial: Physics 2000: "The Laptop"	After doing the Physics 2000: "The Laptop" tutorial on LCD panels, email these answers to Mr.R: a) What is polarized light? b) How is the use of polarized light crucial for any LCD design? c) What is a liquid crystal? d) How does the orientation of a liquid crystal create an output signal? e) Describe the basic construction of a monochrome LCD panel "cell". f) How does the application of voltage turn LCD cells on and off? g) How does a color LCD panel differ in construction from a monochrome panel? h) Name three advantages and three disadvantages of an LCD compared to a CRT display.	10 pts
10-25 F	Flash tutorial on TI's Digital Mirror Device	After doing the Flash tutorial on TI's Digital Mirror Device, looking at the DLP comparisons (and reading the end of Chapter 18!), email answers to these questions: a) Identify three input sources for a DLP b) What is a DMD? How many elements does a typical one have? c) What is the refresh rate for a DMD unit? d) What bit depth is used for most color imaging in DLP projectors? e) How is color given to a DMD's output? Describe the device. f) Why is the luminosity of DMD's so large compared to similar sized LCD's light output? g) What are 3 advantages to using DLP's in cinema projectors compared to film? What is one major disadvantage? h) What is one major disadvantage and advantage in the manufacturing of DMD's compared to CRT's?	10 pts
10-28 M	NO HW for Seniors		X
10-29 T	NO HW		X
10-30 W	Class Research Project on Future Flexible Display Devices	It is 2007. You are a engineering major assigned to a business analysis team to develop a flexible screen application for the education market. Areas to analysis are: A) Power supply B) Flex Screen Technology C) I/O and CPU issues Websites are to be found documenting the current state of technology. Send hyperlinks with brief explanations to Mr. R for your area.	10 pts
10-31 H	Class Research Project on Future Flexible Display Devices	2nd night of research on your Analysis Area. Websites are to be found documenting the current state of technology. Send hyperlinks with brief explanations to Mr. R for your area.	10 pts
[TOP]	NOVEMBER HW
11-1 F	Class Research Project on Future Flexible Display Devices	Class presentations on each assigned Analysis Area. In class we will do the following: > Education Market & Functionality Project parameters are decided upon. What exactly are we designing? > Pro's and Con's of each design choice within each of the three Analysis Areas are listed. > A decision rubric is created by the class and a winning technology is chosen for an optimized design for a specific market.
11-4 M	Flexible Display Device System Integration Proposals	Detailed engineering studies are now required. System Integration Proposals for look and form factor for a the Flexible Display Device. > Sketches with labels are required from each team member. Abstract paragraph summarizing decision choice decisions that you made. > These can be sent as email attachments to Mr. R	50 pts
11-5 T through 11-14 H	Baton Computer Project Work As Assigned
11-15 F	End of Trimester

[TOP]

OCTOBER HW

NOVEMBER HW