Engineering 121 - Engineering Problem Solving II

Spring Quarter 2012 Tentative 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 7
R - Mar 8
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 12
T - Mar 13
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 14
R - Mar 15
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 19
T - Mar 20
L, FT, M, W

Salt Water Chemistry - % Weight
Calibration of Conductivity Sensors

salt water chemistry - % weight
conductivity sensor calibration
homework 4

5
W - Mar 21
R - Mar 22
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
transistory theory
homework 5

6
M - Mar 26
T - Mar 27
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 - Mar 28
R - Mar 29
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
M - Apr 2
T - Apr 3
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
evaluation of salinity control
homework 8

9
W - Apr 4
R - Apr 5
L,T,FT,W

Preparation for Testing of Salinity Control Systems

 homework 9

10
T - Apr 10
L, B, M

college wide exam 1 from 7 - 9 p.m.
this is a closed book exam
all sections in PAVB 213 (Davison Hall)

 material balance problems
material balance solutions

11
W - Apr 11
R - Apr 12
L

Design of RTDs - Resistor Design
Using SolidWorks to Draw Resistor Pattern
Global & Societal #2 - Discussion

 temperature measurement & RTDs
SW template
tips for drawing RTD pattern
homework 10

12
M - Apr 16
T - Apr 17
FT, L, M

Conservation of Energy - Response Time of Heater
In-Class Problem to Compute Response Time
RTD Circuit

conservation of energy notes
RTD circuit and potentiometer
homework 11

13
W - Apr 18
R - Apr 19
L, FT, M

Fabrication of RTD Lecture - Processes & Equipment
Fabrication of RTDs (one group at a time)
System Wiring & Programming (when not fabricating RTD)

 RTD fabrication
homework 12

14
M - Apr 23
T - Apr 24
L, FT, M

Fabrication of RTD Lecture - Processes & Equipment
Fabrication of RTDs (one group at a time)
System Wiring & Programming (when not fabricating RTD)

 continuation of class 13
homework 13

15
W - Apr 25
R - Apr 26
L, T

Measuring RTDs
Attaching leads to RTDs
Sealing RTDs
Preparation for Calibration

heater fabrication
characterization and preparation of RTDs
homework 14

16
M - Apr 30
T - May 1
L, FT, W

Quiz 2
Calibration of RTDs and Final Fishtank Programming

 calibraiton of RTDs
evaluation of fishtank control
making analogReference() work
homework 15

17
W - May 2
R - May 3
L, FT, W

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

18
M - May 7
T - May 8
L, FT

Seven Minute Fishtank Project Presentations (Teams of 4)

 homework 17

19
W - May 9
R - May 10
L, FT Parts

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

 homework 18

20
T - May 15
L, R

college wide exam 2 from 7 - 9 p.m.
this is a closed book exam
all sections in PAVB 213 (Davison Hall)