Engineering 121 - Engineering Problem Solving II

Spring 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
W - Mar 11
R - Mar 12
L, T

Course Overview
Icebreaker

Introduction to the Fishtank Project
Fabrication of Fishtank Platform

fishtank project assignment
fishtank platform fabrication
homework 1

2
M - Mar 16
T - Mar 17
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
W - Mar 18
R - Mar 19
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
M - Mar 23
T - Mar 24
L, FT, M, W

Salt Water Chemistry - % Weight
Calibration of Conductivity Sensors

salt water chemistry - % weight
conductivity sensor calibration
homework 4

5
W - Mar 25
R - Mar 26
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
M - Mar 30
T - Mar 31
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
W - Apr 1
R - Apr 2
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 - Apr 7
W - Apr 8
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 - Apr 9
M - Apr 13
L,T,FT,W

System Troubleshooting / Exam Review

homework 9

10
T - Apr 14

college wide exam 1 from 7 p.m. - 9 p.m.
this is a closed book exam
sections 001, 002 & 003 meet in Adams 161


formula sheet
material balance problems

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

11
W - Apr 15
R - Apr 16
L

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

homework 10

12
M - Apr 20
T - Apr 21
FT, L, M

Salinity System Evaluations


homework 11

13
W - Apr 22
R - Apr 23
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
M - Apr 27
T - Apr 28
L, FT, M

System Wiring & Programming or Thermistor Waterproofing

heater fabrication
temperature control wiring
homework 13

15
W - Apr 29
R - Apr 30
L, T

Calibration of Thermistors

calibration of thermistors
homework 14

16
M - May 4
T - May 5
L, FT, W

Quiz 2
Final Fishtank Programming


evaluation of fishtank control
homework 15

17
W - May 6
R - May 7
L, FT, W

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

18
M - May 11
T - May 12
L, FT

Seven Minute Team Fishtank Project Presentations

homework 17

19
W - May 13
R - May 14
L, FT Parts

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

homework 18

20
M - May 18

college wide exam 1 from 7 p.m. - 9 p.m.
this is a closed book exam
sections 001, 002 & 003 meet in Adams 161