Engineering 121 - Engineering Problem Solving II

Summer Quarter 2015 Schedule

Things to bring to class: L = Laptop R = Robot M = Multimeter T = all Tools W = water bottles  
Color code for topics: Projects / Hands-on Fundamentals  Software Communication Broadening / Design Assessment
class topic download
1
R - June 4
L, T

Course Overview
Icebreaker

Introduction to the Fishtank Project
Fabrication of Fishtank Platform

fishtank project assignment
fishtank platform fabrication
homework 1

2
T - June 9
L, T, FT

Fabrication of Conductivity Sensor - Group A (teams of 2)
Fabrication of Reservoir - Group B (teams of 2)
Assembly of Fishtank Flow Loop & Wiring

conductivity sensor fabrication - PowerPoint
(video1, video2, video3, video4, video5)
fishtank reservoir fabrication - PowerPoint
(video1, video2)
homework 2

3
R - June 11
L, T, R, FT

Salt Water Chemistry - Conductivity Sensor Circuit
LCD Wiring & Programming
Fabrication of Conductivity Sensor - Group B (teams of 2)
Fabrication of Reservoir - Group A (teams of 2)
Assembly of Fishtank Flow Loop & Wiring

conductivity sensor intro: PP and PDF
LCD wiring & programming
conductivity measurement system
homework 3

4
T - June 16
L, FT, M, W

Salt Water Chemistry - % Weight
Calibration of Conductivity Sensors

salt water chemistry - % weight
conductivity sensor calibration
homework 4

5
R - June 18
L, M, FT

Global & Societal Issue #1 Presentation and Discussion
Conservation of Mass - Introduction and Batch Problems
Implement Transistors on Breadboard to Switch LEDs
Run Program to Switch LEDs

Semiconductors and Transistors

conservation of mass - introduction
extended solution for class problem
using a transistor to switch an LED
transistor theory
homework 5

6
T - June 23
L, T, FT

Quiz 1
Conservation of Mass - Rate Problems
Switching with Relays - Robot Current Limits, Power Supplies, Coil Voltage
and Current, Switched Current, On-Board Voltage Regulator (1A), . . .


conservation of mass - rate problem
relays
cascaded switching of a solenoid valve
homework 6

7
R - June 25
L, R, M

On-Off Control of Salinity
Upper & Lower Control Limits
Deadtime Compensation
Material Balance for Fishtank Salinity Control

control of salinity
material balance problem
homework 7

8
T - June 30
L,M,FT,W

Preparation for Salinity Control Testing
(Recalibration, Random Error Determination, Deadtime Compensation,

Fitting, UCL, LCL, Control Equations, LCD Display Requirements)

preparation for salinity testing
flowchart for sketch
fishtank programming tips
evaluation of salinity control
homework 8

9
R - July 2
L,T,FT,W

System Troubleshooting / Exam Review

homework 9

10
T - July 7

exam 1
this is a closed book exam

formula sheet
material balance problems

material balance solutions
2011 exam 1
2012 exam 1
2013 exam 1
2014 exam 1 (solution)

11
R - July 9
L

Global & Societal #2 - Discussion
System Troubleshooting
Salinity System Evaluations

homework 10

12
T - July 14
FT, L, M

Salinity System Evaluations


homework 11

13
R - July 16
L, FT, M

Temperature Measurement
Conservation of Energy - Response Time of Heather
System Wiring & Programming or Thermistor Waterproofing

measurement of temperature
conservation of energy
thermistor waterproofing
homework 12

14
T - July 21
L, FT, M

System Wiring & Programming or Thermistor Waterproofing

heater fabrication
temperature control wiring
homework 13

15
R - July 23
L, T

Calibration of Thermistors

calibration of thermistors
homework 14

16
T - July 28
L, FT, W

Quiz 2
Final Fishtank Programming


evaluation of fishtank control
homework 15

17
R - July 30
L, FT, W

Fishtank Systems Due
Instructor Checks for Working Systems
presentation tips
grading sheet for presentations
homework 16

18
T - Aug 4
L, FT

Seven Minute Team Fishtank Project Presentations

homework 17

19
R - Aug 6
L, FT Parts

Course Assessment
Return of Parts (valves, heaters, reservoirs, relays, . . .)
Exam Review

homework 18

20
T - Aug 11

exam 2
this is a closed book exam