Part III: Time-Driven Versus Event-Driven Control
Continuing Education Center 2/29/2012 330 comments The inputs and outputs to and from a controller may be a function of time (or time-driven), which means that the control flow is driven by a clock; or things may be controlled by events (event-driven), which means that the control flow is determined by events, such as a sensor triggering or a user action or a message from another control system. Our expert will introduce the concepts of discrete (digital), continuous (analog), time-driven, and event-driven systems.
Part II: Control System Feedback Loops
Continuing Education Center 2/28/2012 282 comments A control system has one or more inputs from external sources and one or more outputs driving external loads. The controller may also use one or more feedback loops, which refers to sampling the outputs from the downstream process and feeding these sampled values back as additional inputs into the control system. Our expert will introduce the concepts of open-loop, closed-loop, linear, and non-linear control systems.
Intro: Basics of Industrial Control Processing
Continuing Education Center 2/27/2012 288 comments In its most general sense, a control system is a device that is used to manage, command, direct, or regulate the behavior of other devices, processes, or systems. Industrial control systems are used in the manufacturing and production of products and the control of processing plants. Our expert will discuss the evolution of control systems and introduce a variety of fundamental concepts.
Part V: Advanced Sensors in Precision Manufacturing Applications
Continuing Education Center 2/17/2012 245 comments The rules can change when sensor specifications exceed those for high-volume applications. High precision and accuracy sensors as well as measurement extremes often dictate different sensor technologies. This lecture will explore a few of the more challenging situations.
Part III: Selecting the Right Sensor for Your Application
Continuing Education Center 2/15/2012 227 comments For some measurements, selecting the right sensor simply involves a few parameters such as range, accuracy, and precision. However, applications with network communication and environmental issues such as temperature extremes and high humidity demand further considerations. Our lecturer will discuss a few of his favorites in this session.
Introduction: Basics of Industrial Sensors & Control
Continuing Education Center 2/13/2012 321 comments Choosing the right sensor for industrial applications involves more than just the sensor technology used for the measurement. Other system requirements, including the network communication protocol, play equally important roles. Our expert will delve into some of the most common issues for industrial measurements.
Advertised as the "Most Powerful Tablet Under $100," the Kindle Fire HD 6 was too tempting for the team at iFixit to pass up. Join us to find out if inexpensive means cheap, irreparable, or just down right economical. It's teardown time!
The first photos made with a 3D-printed telescope are here and they're not as fuzzy as you might expect. A team from the University of Sheffield beat NASA to the goal. The photos of the Moon were made with a reflecting telescope that cost the research team £100 to make (about $161 US).
The increased adoption of wireless technology for mission-critical applications has revved up the global market for dynamic electronic general purpose (GP) test equipment. As the link between cloud networks and devices -- smartphones, tablets, and notebooks -- results in more complex devices under test, the demand for radio frequency test equipment is starting to intensify.
Much of the research on lithium-ion batteries is focused on how to make the batteries charge more quickly and last longer than they currently do, work that would significantly improve the experience of mobile device users, as well EV and hybrid car drivers. Researchers in Singapore have come up with what seems like the best solution so far -- a battery that can recharge itself in mere minutes and has a potential lifespan of 20 years.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.