TECH 3821
TECH 3821
Industrial Electronics
Fall 2017

Instructor Info

Daniel Kohn
Office ET218
Phone: 678-4515
Office Hours

Course Info

Course Policies
Formal Report Guide
GradeWatch Access
Submit Assignments


Lessons In Industrial Instrumentation (for 2nd half of course) (Tony R. Kuphaldt) / CC BY 3.0

Course Outline

Aug 28Welcome
Course Policies
Aug 30Intro to Industrial ControlGovernor Video
F-22 Control Oscillations
Class Notes 
Sep 4Labor Day (No Class)   
Sep 6Switches, Relays, Motor Starters, Limit Switches and Relay DriversPoles and Throws, Open and Closed

Switches 101

Honeywell Basic, Toggle, and Rocker Switches

Limit Switch 101
Class Notes 
Sep 11 Transistors, Relay Drivers, Back EMF

Opto-Isolators, FETs, H-Bridge, PWM, IGBT's
Transistor as a Switch


MOSFET as a Switch

H-Bridge intro

H-bridge in depth

H-Bridge Schematic

Pulse Width Modulation

Discrete IGBTs (Insulated Gate Bipolar Transistors)


IGBT or MOSFET: Choose Wisely
Class Notes

Class Notes

Sep 13Lab #1 - Relay Ladder Logic (Motor Starter)  Lab #1 - Due end of lab.
Sep 18Op-AmpsOp Amps
Instrumentation Amps
PID Control Circuit
Class Notes 
Sep 20A2D / D2A Class Notes

Successive Aprox Spreadsheet
Lab #2 - due start of next weeks lab (Sep 27).

Relay Datasheet
Sep 254..20mA Loops
A2D Scaling examples

Sec 7 to Sec 7.1.4 is the A/D Math we discussed in class. The reset of Chp 7 is specific to the 68HC11 microcontroller's A/D. Chp 8 is about connecting to the A/D and is interesting reading.
 HW #1 - Due Oct 2 at start of class (see instructions for details).
Sep 27Diodes, SRC's, Diacs and Triacs Diode Review
Rectifier Review
SCR's, Diacs and Triacs
Lab #4 - due Oct 2 by start of class (turn in one handout and one excel spreadsheet for you and your partner).
Oct 2CalibrationChp 18 (Lessons in Ind Instr)  
Oct 4Take home Test #1 - up to and including SCR's Diacs and Triacs and Labs 1,2 and 4.  Test #1 - Due Wed Oct 11 by start of class via electronic submission (.docx or .pdf)
Oct 9Temperature MeasurementChp 21Class Notes 
Oct 11Pressure MeasurementChp 19Class NotesLab #6 - Due at the start of next weeks lab (Oct 13). Submit both VI and XLSX file via online submission.

Sensor Building Instructions
Oct 16No Class - Fall Break   
Oct 18Level MeasurementChp 20Class NotesLab #7 - Due in start of Lab Nov 1.

Using a honeywell 24PCDFB6G pressure sensor and pneumatic setup supplied by the instructor, do the following
  1. Use a relay driver to turn on and off the compressor
  2. Create a LabVIEW VI to run the compressor while the pressure switch (Nason SM-2b-115R/443) is at it's NC possition. Also display the signal from the Honeywell 24PCDFB6G
  3. Presurize the system and get the data needed to generate a calibration curve for the (0-30 psi)
  4. Using an Op-Amp circuit, convert the current signal from the honeywell pressure sensor so that the circuit outputs a 0-5v signal for 0-30 psi
  5. Modify the VI to maintain a set pressure at the pressure sensor (using a "Control" to set this pressure).

Demonstrate to the instructor. Submit final VI and excel spreadsheet with calibration / gain calculation(s) via online submission.

Peer Evaluations will be conducted at start of end of Lab Nov 1.
Oct 23Flow MeasurementChp 22Class Notes 
Oct 25Analytical Transmitters
Vibration Measurement
Electrical Power
Speed Measurement
Possition Measurement
Chp 23
Chp 24
Chp 25
Class Notes
Class Notes
Oct 30Actuators Class Notes
ISA Control Loops
Nov 1Pneumatics and Hydraulics Class Notes

Pneumatics Ref
Nov 6Industrial Control Class Notes

ISA Control Loops
Nov 8Intro to PID Class NotesLab #8 - Hydraulics Lab. Meet in ET 112. See for lab handout.

Trainer Manual
Nov 13PID Control (cont) PID Math Demystified
PID Control - a brief introduction
PID for Dummies
Nov 15Take home Test #2 - Transducers and Actuators.

Feedback Trainer Demo
 Labview PIDTest #2 - Take Home Test. Due Monday Nov 20 at start of class.

Lab #9a
Nov 20Work on Lab  Lab #9b
Nov 22No Class (Thanksgiving Break)   
Nov 27Work on Lab PID TuningLab #9c - All three parts and a Demo / Q&A (as your final exam) are due by Wed Dec 13 by 5pm (no exceptions).

Please make an appointment with Prof Kohn for Demo / Q&A HERE!

Please make sure to turn in all 3 parts (per lab handouts) at least 24 hours before your scheduled time.

Failure to Demo and Participate in a Q&A will result in an 'F' for BOTH the Final Project and Exam.