AutoQuiz20150710

AutoQuiz: What Control is Used When a Specific Blend of Two Different Materials is Required?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. What kind of control is often used […]

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Robust Control of Uncertain Switched Systems

Robust Control of Uncertain Switched Systems

Abstract: This paper considers the control problem of a class of uncertain switched systems defined on polyhedral sets known as piecewise linear systems where, instead of the conventional Caratheodory solutions, Filippov solutions are studied. In other words, in contrast to the previous studies, solutions with infinite switching in finite time along the facets and on faces […]

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IEC vs. NEMA Motor Controls: Select the Best Option for Your Application

There is a wide range of motor controls available that meet one of the two dominant standards: National Electrical Manufacturers’ Association (NEMA) ICS 2 and International Electrotechnical Commission (IEC) 60947. NEMA and IEC standards evolved separately with distinct intentions, creating the differences apparent today. The NEMA philosophy was to design to a standard “frame” size […]

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AutoQuiz20150703

AutoQuiz: What is a Level Measurement Method Based On Constant Source of Pressurized Air or Gas?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. The level measurement installation in the figure […]

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Does Your Industrial Automation Business Have Social Proof?

The results of a provocative industry study confirmed a fairly well-known view: Industrial automation and manufacturing is still largely sitting on the fence when it comes to leveraging inbound marketing and social media strategies for business development and customer retention. Among the findings in the report, nearly half of all websites surveyed failed to establish […]

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AutoQuiz20150626

AutoQuiz: What Part of a Globe Valve Has the Same Purpose as the Disk in a Butterfly Valve?

Today’s automation industry quiz question comes from the ISA Certified Control Systems Technician (CCST) program. Certified Control System Technicians calibrate, document, troubleshoot, and repair/replace instrumentation for systems that measure and control level, temperature, pressure, flow, and other process variables. Click this link for information about the CCST program. Which of the following parts of a […]

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Technical Training and Education Programs from ISA in July

ISA classroom training, online courses and webinars are taught by industry subject matter experts with extensive industrial automation and control systems work and teaching experience. The comprehensive and practical instruction delivers knowledge and skills that you can immediately put to work at your workplace. In July ISA will be featuring two key educational programs: the […]

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AutoQuiz20150619

AutoQuiz: What Does It Mean When the Percentage of Flow Through a Valve Equals the Percentage of Plug Movement?

Today’s automation industry quiz question showcases ISA’s new course, Control Valve Mechanics and Operations from Analog to Digital. There is still time to register for the class, which starts Monday, June 22, but hurry! Don’t forget to use coupon code JUNTS18 when you register for the course to attend at 50% discount. Register at this page: […]

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