Michael Brown Control Engineering

Fax: 086 671 9320
Email: michael.brown@mweb.co.za
www: www.controlloop.co.za
more information about Michael Brown Control Engineering

Loop Signatures 1: Introduction to the Loop Problem Signatures series
May 2020, Editor's Choice

Over the years I have had many requests to write a book giving more detailed explanations of some of the problems I have encountered in my work on practical loop optimisation. I am by nature and inclination ...
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Control loop: Case History 175 Oversized valve disrupts good control
January 2021, Editor's Choice

This article provides good insight into the dangers of using largely oversized valves, and into the importance of understanding practical control, and how your controllers work.
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Michael Brown now offering control courses to individuals
November 2020, News

Michael Brown is now offering training courses to individuals via online Zoom sessions. The first session of the Part 1 practical control course – Troubleshooting and Loop Tuning – will commence on Monday 1 February 2021.
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Loop Signatures 4: Process dynamics – deadtime and simple lags
November 2020, Editor's Choice

Two important dynamic factors occurring in the majority of process responses are deadtime, and the first order lag.
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Case History 174: The importance of setting up your controller properly
October 2020, Editor's Choice

It always amazes me that so few people really understand the workings of their feedback controllers. I have met only a few who really understand the practicalities of control blocks.
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Loop signatures: Case History 173
August 2020, Editor's Choice

More control problems in a copper extraction plant.
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Loop Signatures 2: The two classes of processes.
July 2020, Editor's Choice

This article will discuss the two classes of processes called self-regulating and integrating (or ramping) processes. This subject is absolutely vital to regulatory control, but strangely is seldom taught ...
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Case History 172: Interesting controls in a copper extraction plant.
June 2020, Editor's Choice

In my 30 years devoted to optimising controls in industrial process plants in many countries, I thought that I had seen all the possible process dynamics that one would encounter. Imagine my surprise ...
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Case History 171: Instability in a metallurgical plant
March 2020, Editor's Choice

I have written several articles about the unique problems I have encountered, specifically in the mining processing industry. This article is about some experiences in a mining operation where recently ...
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Smart devices for Ex areas: Unbelievably simple mistakes that prevent control.
September 2019, Editor's Choice, Motion Control & Drives

I am often astounded by finding really basic problems with controls in plants, which have operated that way for years. These problems are so basic that one can only wonder at how these controls could ...
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Case History 167: Test your analytical capabilities
July 2019, Editor's Choice, Motion Control & Drives

Answer to the question at the end of Case History 166 (www.instrumentation.co.za/8690r) In the last Case History article, I suggested you try and see what was not so good about a level control, which ...
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Control loop question answered
June 2019, Editor's Choice

Control loop expert Michael Brown recently received a question from reader, Hansell Williams. The question relates to applying neural network and machine learning concepts to plant automation and control. ...
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