PLC Software Circuit Capabilities

By Terry Bartelt

In this animated object, learners examine how to use a programmable logic controller as an alternative to hardwiring a ladder logic circuit.

PLC Counter Operation

By Terry Bartelt, Tom Yapp

Learners examine the two methods used by programmable logic controllers to perform a counting operation using addition or counter instructions. A brief quiz completes the activity.

Feedback System Application

In this animated and interactive object, learners examine a heat exchanger as an example of an automated closed-loop system.

Sensor Wiring Configurations

In this animated object, learners examine how two- three- and four-wire sourcing and sinking sensors operate. A brief quiz completes the activity.

Transistor Fundamentals: AC Coupling Capacitors

By Patrick Hoppe

Students view the design and function of an ac model for a transistor circuit.

Transistor Fundamentals: JFET Drain Curves

Students examine the drain curves for a JFET. They are also introduced to vocabulary terms and formulas.

Transistor Fundamentals: Review of Logarithms

Students review logarithms as they pertain to electronics.

Op Amp Fundamentals: The Inverting Amplifier

The inverting amplifier configuration is presented. The closed loop voltage gain and the closed loop bandwidth formulas are explained, along with the concept of negative feedback.

Op Amp Fundamentals: The Summing Amplifier

Students read an explanation of the summing amplifier and the formulas for closed-loop gain. An example is given.

Capacitors Series - Parallel: Practice Problems

Students complete 10 practice problems.

Motor Action (Screencast)

In this screencast, learners examine the interaction between a conductor that represents a motor armature and a magnetic field that represents a motorâ€™s main field. This interaction causes the shaft to turn.

Capacitor Values (Screencast)

In this screencast, learners examine the physical facets that determine the value of a capacitor.

The Hydraulic Color Code (Screencast)

In this screencast, learners read an explanation of the color code used on schematic diagrams for hydraulic circuits. Circuit examples for each color are shown.

Transformers - A Mechanical Gear Analogy

By Roger Brown

Learners read an analogy comparing an electrical transformer to mechanical gears.

Instantaneous Current Calculations of an Energizing RL Circuit (Calculator TI-30XIIS)

Students view the keystrokes of a TI-30XIIS calculator that are required to solve for the instantaneous current of an energizing RL circuit.

Instantaneous Voltage Calculations of a Discharging RC Circuit (Using a TI-35X or a TI-36X Calculator)

In this animated object, learners view the keystrokes on a TI-35X/36X calculator that are required to solve for the instantaneous voltage of a discharging RC circuit.

Complex Power: The Sum of the Individual Real and Reactive Powers

The learner views a method to find the total complex power of a circuit in which the individual real and reactive powers are found and then added together. Several examples are shown, along with the power triangles.

The Vortex Flowmeter

Learners view an animation showing the operation of a Vortex flowmeter that is used to measure flow in a process control system.

Continuous Cycling Tuning Example

By Craig Hemken, Terry Bartelt

In this interactive object, learners follow the steps required for the Ziegler-Nichols Continuous Cycling method. The process identification procedure is performed, calculations are made, and the proper PID values are programmed into the controller.

Who Wants to Be an "Engin-aire?" -- Ferrous Metals and Alloys

By Bryan LaVigne

Learners answer questions about ferrous metals and alloys using a game show format. Immediate feedback is provided.

Repetitive Cylinder Cycling

In this animated activity, learners examine the operation of a pneumatic cylinder that continuously cycles by extending and retracting.

Elements of Machine Vision

By Craig Hemken

Learners examine the basic elements of a machine vision system. A short quiz completes the activity.

Acceleration and Deceleration Adjustments

In this animated activity, learners examine the circuitry in a DC variable speed drive that causes the motor to accelerate or decelerate at slow rates. This learning object has audio content.

Standard Transmission Signals

Learners examine animations of the most common transmission signals used in automated systems, such as 4 mA to 20 mA, 3 psi to 15 psi, and 0 to 10 volts. A brief quiz completes the activity.

Transistor Fundamentals: The MOSFET

Students read an introduction to the Metal Oxide Semiconductor Field Effect Transistor. They also examine its enhancement mode.