This page provides supplementary information to
support lectures in EAS 199A during Fall 2011.
Class meeting on 1 December 2011
Learning Objectives
- Complete the pump testing, and data analysis so that you are ready for the final report on the pump.
- Be aware of the requirements for the final report on the pump
- Be aware of the requirements for the final report on the pump
Notes and Supplemental Files
- Expectations for the final report on the pump project
- List of Learning Objectives by class meeting as MS Word or PDF
Class meeting on 28,29 November 2011
Learning Objectives
- Complete the pump testing, and data analysis so that you are ready for the final report on the pump.
- Be aware of the requirements for the final report on the pump
Notes and Supplemental Files
- Expectations for the final report on the pump project
More information for this lecture is on another page.
Class meeting on 24 November 2010
Homework: Problem Set 7 Due 28,29 November 2011
Learning Objectives
- Be aware that Quiz 2 is next class meeting
- Be able to get your pump to work
- Be able to describe the basic shape of a pump curve, and identify the no flow and maximum flow conditions.
- Be able to measure the pump curve and pump efficiency versus flow rate
- Be able to perform polynomial curve fit with the Excel Trendline function
Notes and Supplemental Files
- Pump testing procedure: PowerPoint slides, PDF slides, PDF slides 2-up, or 3up handouts Updated 26 Nov 2011
- Slides on polynomial curve fitting: one slide per page or 2-up handouts
- Excel sheet for polynomial curve fit of pump data
More information for this lecture is on another page.
Class meeting on 21, 22 November 2011
Homework: Problem Set 7
Learning Objectives
- Be aware that Quiz 2 will be given next week
- Be able to finish fabrication of your pump
- Be able to assemble the pump
- Be able to describe the basic shape of a pump curve, and identify the no flow and maximum flow conditions.
Notes and Supplemental Files
- Pump performance analysis slides or 2-up handout
- Pump performance analysis (LA Tech) PowerPoint slides or PDF (no animations) or 3-up handout
- Pump assembly tips
Class meeting on 15,16 November 2011
Homework: TBA: Assignment will involve submitting a 3D model of the pump impeller by Friday, 18 November
Learning Objectives
- Be able to perform power law, semi-log, and log-log curve fits with the Excel Trendline function
- Be able to create a 3D solid model of a pump impeller by following the Solidworks tutorial
- Be ready to begin fabrication the pump body with the milling machines in the lab
Notes and Supplemental Files
- Least squares fitting to semi-log, power, and log-log functions: PowerPoint, or PDF or 3-up handout
- Solidworks instructions for impeller design
- Instructions for manufacturing the pump body: PowerPoint, PDF, or 3-up notes
- Key operations on pump body (PNG image), and Larger PDF version
More information for this lecture is on another page.
Class meeting on 9,10 November 2011
Homework: Problem Set 6 and Rubric for in-class demo of the desktop fan
Learning Objectives
- Be able to compute and interpret the R2 coefficient of a least squares line fit
- Be able to use Excel's
trendline
function to add a least squares line fit to data
- Be able to use Excel's
trendline
function to add a least squares fit of a polynomial to data
- Be aware of pump fabrication steps and responsibilities for students
- Be aware of the 3D solid modeling necessary for the impeller fabrication.
Notes and Supplemental Files
- Slides on R2: one slide per page or two slides per page
- Slides on polynomial curve fitting: one slide per page or 2-up handouts
- Pump fabrication overview PowerPoint, PDF, or 3-up notes
- Key operations on pump body (PNG image), and Larger PDF version
- Solidworks instructions for impeller design
- Instructions for manufacturing the pump body: PowerPoint, PDF, or 3-up notes
More information for this lecture is on another page.
Class meeting on 7,8 November 2011
Learning Objectives
- Be able to manually calculate the slope and intercept for a least squares line fit to data
- Be able to complete the fabrication of the desktop fan
Notes and Supplemental Files
- Linear Regression: PDF slides and 2-up notes
- Spreadsheet example of manual linear regression (xlsx)
- Print out of the spreadsheet example of manual linear regression (PDF)
- Screencast of linear regression with Excel: see "Basic Line Fit -- 'manual' calculations with Excel"
More information for this lecture is on another page.
Class meeting on 2,3 November 2011
Homework: Desktop fan and design, Due 7,8 November. Submit fan drawings via a drop box on the D2L website.
Learning Objectives
- Be able to connect a momentary button to an LED circuit such that pushing the button turns on the LED
- Be able to describe the function of and need for a pull-down or pull-up resistor in a digital input circuit for a momentary button
- Be able to build a circuit that uses a momentary button for digital input to an Arduino
- Be able to write a wait-for-input sketch on an Arduino that uses a momentary button for input
- Be able to describe the difference between a wait-for-input algorithm and an interrupt-driven algorithm that responds to a digital input
- Be able to create a hand sketch of the structure of the desktop fan
- Be able to complete the Solidworks drawing of the structure for the desktop fan
Notes and Supplemental Files
- Button input (slides) and 3-up notes
- Button_LED.pde sketch that uses a button as a switch to turn on an LED.
- Wait_for_start_button.pde sketch that waits for the user to press a button before leaving the
setup
function.
- Button_interupt.pde sketch that uses an interrupt to respond to button input.
- TIDEE Design Process (video)
More information for this lecture is on another page.
Class meeting on 31 Oct, 1 Nov 2011
Class meeting on 26, 27 October 2011
Learning Objectives
- Be able to identify characteristics that distinguish a servo and a DC motor
- Be able to describe the difference a conventional servo and a continuous rotation servo
- Be able to use the Arduino Servo library to control servo position
- Be able to launch Solidworks to begin drawing of the fan parts
Notes and Supplemental Files
- Controlling a servo with Arduino slides in Powerpoint (PPTX) or slides (PDF) or 3up notes
- Solidworks drawing setup for laser cutter parts: right click to save as...
- Failure modes for laser cutter drawings
- List of learning objectives: MS Word (.docx) or PDF
- List of topics covered on the midterm: MS Word (.docx) or PDF
More information for this lecture is on another page.
Class meeting on 24, 25 October 2011
Learning Objectives
- Be able to safely solder extension leads onto the DC motor
- Be able to use a potentiometer to control the speed of the DC motor from the Sparkfun kit
Notes and Supplemental Files
- DC motor circuits PDF slides and 3-up notes
- Controlling the speed of a DC motor slides or 3up notes
- Soldering instructions Powerpoint
- Soldering extension leads onto the DC motor slides or 3up notes
More information for this lecture is on another page.
Class meeting on 19, 20 October 2011
Homework: Problem Set #4
Learning Objectives
- Be able to derive the coefficients of, and evaluate the v(t) curve that describes a breathing LED.
- Be able to use PWM to control the brightness of an LED
- Be able to implement codes to simulate a breathing LED with straight line segments
Notes and Supplemental Files
- Code for a breathing LED: detailed notes
- Soldering instructions Powerpoint
- DC motor circuits PDF slides and 3-up notes
- Video of laser cutter fabrication of desktop fan pieces: Link
More information for this lecture is on another page.
Class meeting on 17, 18 October 2011
Homework: Problem Set #4
Learning Objectives
- Be able to set up a spreadsheet in Excel that is organized and easy to read
- Be able to construct a plot in Excel
- Be able to describe the main steps in constructing the desktop fan project
- Be able to derive the coefficients of, and evaluate the v(t) curve that describes a breathing LED.
Notes and Supplemental Files
- Excel spreadsheet to plot of resistor power versus resistance: Lecture Notes and Spreadsheet
- Fan project introduction: PDF slides and 3-up notes
- Introduction to PWM: PDF slides or detailed notes
- Equations for a breathing LED: PDF slides or Handout 2up slides or detailed notes
- Video of laser cutter fabrication of desktop fan pieces: Link
More information for this lecture is on another page.
Class meeting on 12, 13 October 2010
Homework: Homework 3
Learning Objectives
- Be able to analyze and compute the power dissipated by any resistor in an arbitrary combination of series and parallel resistors
- Be able to explain the differences between
int
and float
variable types in an Arduino sketch
- Be able to choose
int
or float
appropriate for a coding task
- Be able to write
for
loops in an Arduino sketch
- Be able to write a
for
loop to compute the average of analog input measurements in an Arduino sketch
Notes and Supplemental Files
- Slides to review DC Circuit Analysis: Full screen slides or two-up handouts.
- Manual solution of power dissipation problem (PDF)
- Arduino programming Part 2 slides (PDF)
- Arduino programming Part 2 slides 3-up (PDF)
- What's this "void loop" thing? (PDF)
- Practice problems for circuit analysis
Class meeting on 10, 11 October 2011
Homework: Homework 3
Learning Objectives
- Be able to describe the role of the
setup
and loop
functions in an Arduino sketch
- Be able to list at least two Arduino variable types and describe the kinds of data they can store
- Be able to convert from binary to decimal and decimal to binary number formats
- Be able to predict current flow into junctions for simple resistor circuits
- Be able to find the programming reference on the main Arduino we site
- Be able to write Arduino programs to control the micro servo motor in the Experimenter's kit
Notes and Supplemental Files
- Experimental verification of Kirchoff's current law: Powerpoint, 3-up, PDF
- Arduino programming slides: Powerpoint, PDF 1-up, PDF 3-up
- Binary Numbers (PDF)
- Analog and Digital input/output: Powerpoint
More information for this lecture is on another page.
Class meeting on 5, 6 October 2011
Reading: Print the handouts an bring them to class
Learning Objectives
- Be able to use your multimeter to measure voltage drops around a circuit
- Be able to compare predicted and measured voltages for simple resistor circuits
- Be able to define and create a voltage divider on a breadboard
Notes and Supplemental Files
- Experimental verification of Kirchoff Voltage Law: Powerpoint slides and 3-up handouts in PDF
- Sample problem for circuit simplification
- Kirchoff Voltage Law, example 1 (PDF)
- Kirchoff Voltage Law, example 2 (PDF)
- Multimeter tutorial at Sparkfun
- Multimeter tutorial by Limor Fried. Be sure you click on the individual links under "What you will learn" headings.
Class meeting on 3, 4 October 2011
Homework: Homework 2
Learning Objectives
- Be able to use your multimeter to measure voltage and resistance
- Be able to build circuits of resistors on the breadboard from the Sparkfun Inventor's Kit
- Be able to write an Arduino program to make an LED blink
Notes and Supplemental Files
- Download the PowerPoint presentation or the 3-up version of the notes on using a multimeter and a breadboard
More information for this lecture is on another page.
Class meeting on 28, 29 September 2011
Learning Objectives
- Be able to compute the power dissipation (or consumption or use) when current flows through serial and parallel combinations of resistors.
- Be able to compute the equivalent resistance for two resistors in series.
- Be able to compute the equivalent resistance for two resistors in parallel.
Notes and Supplemental Files
- Lecture notes from LA Tech
- Hand-written lecture notes
- Sample problem and solution for series and parallel combination of resistors
More information for this lecture is on another page.
Class meeting on 26, 27 September 2011
Reading: Notes on electricity
Learning Objectives
- Know how to contact instructors: email, telephone, office hours
- Understand the goals and expectations of the class
- Be able to explain the mechanism for conduction of electricity in solids
- Be able to read data from the Periodic Table of elements
- Be able to define current in terms of electron flows (in number and direction)
- Be able apply Ohm's law to the prediction of voltage, current and resistance in simple DC circuits.
- Understand the homework format
Notes and Supplemental Files
- Syllabus
- Liability release form
- Course Overview presentation 3-up slide handout or the full version (3-up version of slides). Caution, these are large files, about 60 MByte each.
- Notes on electricity, 11 pages of text and images.
- Electricity presentation: 3-up slide handout or full version. These are small files, about 1.5 MByte each.
- Study questions for electricity notes
- Engineering format for homework solutions and Sample solution
- Homework 1
More information for this lecture is on another page.