Ratio Pyrometers
By Terry Bartelt
Learners study the theory of operation for a ratio pyrometer that measures temperature. A short quiz completes the activity.
Linear Displacement Transducer
Learners examine how a linear displacement transducer is used to measure the linear position of a physical object. Animations show the sequential steps of the entire operation.
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 motor’s main field. This interaction causes the shaft to turn.
Time-Delay Relays
This animated lesson shows the operation of timer-on and timer-off delay relays used in ladder circuit operate.
Motor Speed Control
Learners examine the speed control circuits in a DC variable speed drive that cause the RPM of a motor to vary. This activity has audio content.
RPM of AC Motors
By Terry Bartelt, Terry Fleischman
Learners study factors that affect the synchronous speed of an AC motor: the applied AC frequency and the number of stator poles.
PLC Output Modules
The learner will understand the operation and configuration of various types of PLC output modules and how they're used.
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.
Pneumatic Air Leaks
By Terry Bartelt, Stephen Schneider
In this animated object, learners examine the causes of air leaks and read how to repair them. The object includes audio.
The LVDT: A Linear Voltage Differential Transformer in Action
In this animated object, learners study the operation of a linear voltage differential transformer. A brief quiz completes the activity.
Comparing Electronic and Hydraulic Components (Screencast)
Learners read about the similarities of electronic and hydraulic components and then match the schematic symbols in a drag-and-drop exercise.
Calculating Belt Length (Screencast)
By James Bourassa
In this screencast, learners follow steps to determine the proper starting belt length for a timing, flat, or v-belt drive.
Overflow and Underflow for Signed Binary Numbers
By John Casey, Terry Bartelt, Terry Fleischman
Learners examine the occurrence of overflow and underflow conditions in a programmable logic controller. It is recommended that users view the learning object “Signed Binary Numbers” in advance of this object.
PLC Timer Instructions
Learners examine the animated Timer-On Delay instruction and the Timer-Off Delay instruction of a PLC timer. A brief quiz completes the activity.
Basic Elements of a Plastics Extruder
By Craig Hemken
In this animated object, learners examine the parts of a plastics extruder. A quiz completes the activity.
The LVDT DC Conversion Circuit
Learners study how a circuit converts the AC output of a linear voltage differential transformer (LVDT) into variable DC voltage. It is recommended that learners view the learning object IAU7807, “The LVDT: A Linear Voltage Differential Transformer in Action” before going through this object.
Four-Wire Sensors
In this animated object, learners examine the signals produced at the N.O. (normally open) and N.C. (normally closed) outputs of sourcing and sinking four-wire sensors. A brief quiz completes the activity.
Hydraulic Cylinder Speed (Screencast)
In this screencast, learners examine why the piston of a hydraulic cylinder extends slower than it retracts. A brief quiz completes the activity.
Inductive Proximity Sensors (Screencast)
Learners examine the operation of an inductive proximity sensor in this animated object. A brief quiz completes the activity.
Incremental Encoder Quadrature Modes
Learners study the method of using more than one track and quadrature modes to improve the resolution of an optical encoder. A brief quiz completes the activity.
Hall-Effect Sensor Application
Learners view practical examples of how a Hall-effect sensor is used.
Cavitation
In this animated activity, learners examine how cavitation occurs in a hydraulic pump. A video clip is included. Learners then test their knowledge in a brief quiz.
Hydraulic Oil Contamination
In this interactive object, learners examine how hydraulic oil is contaminated, the types of damage contamination can cause, and the methods used to clean the oil.
The Air Pilot
In this animated object, learners examine the operation of a pneumatic directional control valve using air pilot lines.
Optical Pyrometer
Learners observe how an optical pyrometer is used to take temperature measurements without making physical contact with the object being measured.