2018 Control Process Automation Hall of Fame - Part 1: Thomas McAvoy

Two new inductees join the Hall of Fame

CT1804 cvr sprd lead art

Unlike in days of yore or in modern, but backward realms or quaint hierarchies, where crowns are inherited, bought or won by war or intimidation, new inductees to the Control Process Automation Hall of Fame are selected by their peers—the current, active members. We say that Hall of Fame members stand out for three qualities: the extent of their process control knowledge, their wisdom in applying that knowledge, and their success in sharing it with others. It’s a good kind of fame. Members nominate potential inductees, members vote for their choices among the nominees, and those votes determine each year’s new group. Our editors just facilitate the process by…

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State of Technology: Level Measurement

2018 SOT level measure 140x183This State of Technology report brings together all of the latest and best articles on level measurement, and covers the latest trends, articles, back-to-basics tutorials, application stories and product solutions. Download it here.


Our latest issue: March 2018

CT1803 cover shadowGetting up above your planet's atmosphere may seem tough enough, but that's where the real work begins because it's a long way to anywhere else. Likewise, the moonshot to open, interoperable, plug-and-play control in the process industries is reaching escape velocity. Read the issue.


Voices: Ask The Experts

Vortex flowmeter calibration and rangeability

How can we determine the best size to balance accuracy against pressure drop?

Q: I have a question regarding vortex flowmeters and hope that you can clear it up. The line size is 3 in.; the flow is minimum 6 m³/hr, normal 20 m³/hr, maximum 22 m³/hr. The vendor suggested using a 3-in. Endress+Hauser (E+H) Prowirl vortex flowmeter with minimum flow 4.03 m³/hr, maximum…

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Most Recent

  • Product roundup: fierce flow measurement, control

    PLUG, PLAY, MONITOR, MEASURE Picomag electromagnetic flowmeter is an inline transmitter for measuring temperature and flow of conductive liquids in ½ in. to 2 in. pipe sizes. It measures flow up to 198 gpm with ±0.5% full scale accuracy and ±0.2% repeatability, and performs in temperatures from…

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  • Sometimes operators sense changes missed by managers and engineers

    By John Rezabek

    Dale’s plant had been dutifully manufacturing and shipping out tank wagons of useful chemicals, until one day a customer called to return a batch—it was off-spec for color, which was required to be water-white. That was unfortunate and garnered the attention of layers of management that usually…

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  • Control's 10 most-read articles from March 2018

    1. How to Avoid a Common PID Tuning Mistake TipsIn this Control Talk blog, Greg McMillan discusses a common PID tuning mistake: decreasing the PID gain should make a loop with slow decaying oscillations more stable. Read more. 2. Patience has rewards: Top 50 automation companies of 2016The Top 50…

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  • Resource Guide: Fieldbus, Ethernet networks explained

    BASICS OF THE BUSESA group of Wiki-style web pages presented by Kunbus covers the basic history, characteristics and applications of the major fieldbuses and Ethernet-based protocols and technologies, including Profibus, Profinet, Ethernet/IP, Foundation fieldbus, Modbus TCP, DeviceNet, CC-Link,…

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