Dave Harrold, CONTROL ENGINEERING

Articles

PID, APC November 2, 2018

Merging Mom’s Perceptive Power with Technology Creates Startling Results

KEYWORDS Process and advanced control Neural networks Multivariable sensors Sensing/measurement Analyzers What do the FBI (Federal Bureau of Investigation) and your mother have in common? Both use real measurements to reach an inferred outcome; are you telling the truth? Think about it, your mother would do a subtle interrogation all the while observing your body language—pupil dilation,...

By Dave Harrold, CONTROL ENGINEERING
Mechatronics and Motion Control January 1, 2006

Data Acquisition – 2006-01-01 – 2006-01-01

In its purest form, data acquisition (DAQ) is the process of gathering information in an automated fashion from analog and digital measurement sources and presenting that information in a meaningful way. Depending on your industry, DAQ means different things to different people. For example, to the utility industry, DAQ is part of the SCADA (supervisory control and data acquisition) system and ...

By Dave Harrold, CONTROL ENGINEERING
Process Instrumentation and Sensors September 1, 2004

Custody transfer: getting what you pay for

When purchasing gasoline for your automobile, do you ever wonder if you are getting what you pay for? Have you ever stopped the pump at exactly 10 gallons to see if the price is correct? Verifying that an agreed-upon price per unit is being delivered is what custody transfer is all about. Whether it's between companies or between departments, ensuring custody transfers are accurate requires cal...

By Dave Harrold, CONTROL ENGINEERING
Energy, Power October 1, 2003

Turbine Flowmeters: Simple Elegance

Available in sizes to 12 in. (300 mm) and capable of handling process pressures to 10,000 psi (689 bar) and temperatures to 1,000 °F (538 °C), turbine flowmeters are versatile enough for many of the world's industrial, chemical, petrochemical, pharmaceutical, and food and beverage applications.

By Dave Harrold, CONTROL ENGINEERING
I/O Systems, I/O Modules September 1, 2003

Phased HMI and I/O Solution Boosts Productivity

Recently married and out of a job, Roy Costa applied for a safety coordinator position at the Michigan Waste Energy (MWE) facility in Detroit, Michigan. As the interview morphed into a discussion about obsolete control system problems, Costa articulated a phased solution that began by replacing the obsolete human-machine interface (HMI) with a new application built on National Instrument's (NI)...

By Dave Harrold, CONTROL ENGINEERING
Vision and Discrete Sensors August 1, 2003

Don’t Touch That Process!

Early adopters of non-contact level technologies were often disappointed with the installed results. However, significant technology advancements and installation know-how acquired by manufacturers and end-users over the past several years brush away past non-contact level measurement disappointments.

By Dave Harrold, CONTROL ENGINEERING
Process Instrumentation and Sensors July 1, 2003

New technologies make inroads

Magnetic flowmeters are most widely used, while mass and turbine flow technologies are gaining importance. Meanwhile, reliability and need for easy calibration rose significantly in importance with buyers from 2001 to 2003. These are among findings from Control Engineering and Reed Research Group surveys on flowmeters, designed to learn where reader/subscribers are using and what they are loo...

By Dave Harrold, CONTROL ENGINEERING
Process Instrumentation and Sensors July 1, 2003

Flint Ink Steps Its Way to Success

Committed to increasing productivity, lowering costs, and reducing product variability at its New Albany, Indiana facility, Flint Ink began an automation journey that, like most journeys, included a number of unexpected bumps, twists, turns, and thrills along the way. Though the journey isn't complete, all the participants are positive the hardest parts are behind them and the rewards have alre...

By Dave Harrold, CONTROL ENGINEERING
Ethernet May 1, 2002

Users expect high quality, availability, competitive pricing

Despite all the hoopla about ways technology can enhance our lives at home and at work, none of the technology would have reason to exist without ac to dc power supplies. Oh sure, there are batteries, and solar and wind generators, but most technology relies on ac power, and thus the need for ac to dc power supplies.

By Dave Harrold, CONTROL ENGINEERING
Robotics January 1, 2002

Controllers: Heartbeat of Production

This is the first of a two-part series focused onindustrial controller capabilities. Part two will appear in the February 2002 issue of Control Engineering. Much of the controller capability information derives from an online questionnaire controller suppliers were invited to complete. The entire controller capability matrix is located at www.

By Dave Harrold, CONTROL ENGINEERING
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